Home Glossary Of Terms
10 Karat White Gold
10 Karat gold (10K) is 10 parts pure gold and 14 parts other metal alloys. White gold is created by combining pure gold with a copper, zinc and nickel (or palladium) alloy.
14 Karat White Gold
14 Karat gold (14K) is 14 parts pure gold and 10 parts other metal alloys. White gold is created by combining pure gold with a copper, zinc and nickel (or palladium) alloy.
18 Karat White Gold
18 Karat gold (18K) is 18 parts pure gold and 6 parts other metal alloys. White gold is created by combining pure gold with a copper, zinc and nickel (or palladium) alloy.
Saltwater cultured pearls that are harvested from Akoya mollusks in oceans off the coasts of Japan and China.
Discovered in Russia in 1830, this mineral has a unique ability to change colors in various lights. It is also traditionally given for the 55th wedding anniversary.
A mixture of two or more metals created to enhance the strength and/or appearance of a particular metal.
A purple form of quartz. Amethyst is the birthstone of February and the traditional gift for the 6th and 17th wedding anniversaries.
A type of watch display featuring a dial and hands, rather than a digital numeric display.
A blue-green mineral from the beryl family. Aquamarine is the birthstone of March and the traditional gift for the 19th wedding anniversary.
A stone cut into a small rectangular or tapered shape with a step cut and often used as accents to larger stones.
A rigid bracelet that slips over the hand, sometimes with a clasp.
Two metal pieces on either end of a necklace or bracelet screw or click together, forming a clasp that looks like a barrel.
A decorative setting in which stones are set evenly with the metal surface and secured by small metal bead-like prongs.
A metal ring that frames the dial of a watch. On many watches, the bezel displays minute increments and can be rotated in one or both directions. Divers use this function to measure elapsed time.
Metal is wrapped around the girdle of the stone, making only its crown and table visible. This setting is admired for its protection, security and its ability to minimize inclusions.
Stones that correspond to a specific month of the year.
Imperfections found on the external surface of a diamond.
The most common form of topaz. Blue Topaz is traditionally used to celebrate December birthdays and the fourth year of marriage.
A classic chain with small box-like links.
A piece of folded metal on one end of a chain or bracelet fits into the opening of a box on the other end and securely fastens the chain or bracelet together.
A set of rings that includes both the engagement ring and wedding band for her.
The light that is reflected from the diamond to the eye, or the amount of sparkle for a particular diamond.
A way in which diamonds are cut. Brilliant-cut diamonds include round, oval, teardrop, pear, princess, radiant, triangle, heart and marquise-shaped diamonds.
A firm metal brush creates tiny grooves in the surface of the metal to add texture. This effect slightly reduces the reflection of the metal and creates a wispy, feathery look.
Similar to a belt buckle, this clasp is the most popular for non-metal watchbands.
Bulova Accutron Warranty
BULOVA ACCUTRON LIMITED 5-YEAR WARRANTY: Your new Bulova Accutron timepiece is warranted only to the original owner by Bulova for 5 years from date of purchase.
Bulova timepieces are warranted to the owner for three full years from date of purchase. See complete warranty
Metal ovals are strung together in a rotating pattern to create this chain.
A common cut for gemstones that features a smooth, rounded surface rather than faceted.
One of the 4Cs that measures diamond weight. Diamonds can range from small fractions of a carat to many carats.
Attached to the watchband, this metal covering surrounds the bezel and dial of a watch and protects its internal parts from dirt and damage. Some cases are built to resist water from entering the watch.
Cathedral-like arches rise above the band on either side of the stone. May contain diamond or colored stone accents.
A certification provides an unbiased description of the individual qualities that determine a diamond’s value and worth as evaluated by expert gemologists.
Stones are placed side by side within a metal channel. There is no metal between each stone.
Watches that include multiple time measurement functions independent of the timekeeping. These functions can include stopwatches, timers, measurement of one-hour intervals, measurement of fractions of a second or elapsed time.
A watch whose timekeeping has been tested and certified for maximum accuracy according to standards set by the Swiss Official Chronometer Control (Contrôle Officiel Suisse des Chronomètres or C.O.S.C.).
All Citizen watches are under limited warranty for a period of five years from the original date of purchase. See complete warranty
A yellow variety of quartz. Citrine is the birthstone for November and the accepted gift for the 13th wedding anniversary.
The device used to fasten each end of a watchband, bracelet or necklace together. Clasps are traditionally made of metal and include several designs.
Several stones that are grouped together for a unique design or to look like one large stone.
A diamond with no traces of body color. Light travels through a colorless diamond better than a diamond with color, resulting in exceptional brilliance.
Kay Jewelers does not sell conflict diamonds. Learn more
The upper portion of a diamond, located between the table and girdle (midsection).
A metal knob located on the side of a watchcase and used to set the watch to the correct time and date. Some watches have multiple crowns to control other functions and settings.
The clear cover over the dial of a watch that protects it from dirt, scratches and internal damage. Typically made of glass-like substances such as plastic. High grade watches usually have synthetic sapphire crystals.
The small facet on the bottom tip of a diamond.
Cultured pearls are created when tiny irritants are inserted into a mollusk shell. Nacre builds around the irritants over time, resulting in cultured pearls. Most pearls today are cultured. To learn more, visit our Cultured Pearls Guide.
Curb Link Chain
Oval links interweave to form a long metal chain.
A type of cut in which a four-sided stone has smooth, rounded edges.
This metal watch clasp is divided into three parts that extend out to fit over the wearer’s hand. When closing the clasp, the metal parts fold internally as the top latches onto the band. This clasp can also include push buttons on either side of the band for added
The front display of a watch that includes the markings and hands. It is covered by the crystal and enclosed within the case.
The hardest known natural mineral to man. Diamonds are the birthstone of April and the traditional gift for the 10th, 60th and 75th wedding anniversaries. Learn more by visiting our Diamond Guide.
One of the 4Cs that measures the amount/absence of inclusions in and blemishes on a diamond. Clarity ranges from flawless to included/imperfect.
One of the 4Cs that measures the amount of body color (tint) in a diamond on a scale from colorless to yellow/brown or gray.
Diamond Council of America (DCA)
A not-for-profit organization that educates its students about diamonds, training them to become certified Diamontologists.
One of the 4Cs that determines how light travels through a stone. Cut refers to the proportions of a stone, facet angles, finish and shape.
The uppermost flat surface and biggest facet of a stone.
Diamond Total Weight
The sum of the carat weights for all diamonds in a piece of jewelry.
Created by cutting the metal with a diamond, giving it a glittering and sparkling look.
An independently certified diamond salesperson who has been educated about the qualities that make each diamond unique and beautiful.
A type of watch from Citizen that is powered by natural and artificial light, so it never needs a battery. Light enters through the crystal to a solar cell that converts it to energy.
Found in all shades of green, emerald is a member of the beryl family. It is the birthstone of May and the traditional gift for the 20th, 35th and 55th wedding anniversaries.
A type of cut in which the stone is rectangular or square with beveled corners and a step cut.
Typically found on hoop earrings. A curved piece of wire goes through the ear and secures into the other side of the hoop, creating a continuous circle.
Euro Wire Backs
Long curved wires that attach to the earrings on one end, while the other end goes through the ear and secures with a clasp.
This flexible watchband is used in place of a clasp. It is manually expanded over the wrist and retracts once it is released for a comfortable fit around the wrist.
More technically referred to as the dial, the face is the front display of a watch that includes the markings and hands. It is covered by the crystal and enclosed within the case.
The flat surfaces on a cut stone. The placement of facets determines how much light reflects through the stone.
Figaro Link Chain
Features a distinct pattern of three (or five) equally sized links separated by one longer link.
Also called a Hook and Eye Clasp, this fastener has a hook on one end of the chain and a metal loop on the other. The hook fits through the loop to keep the chain together.
The highest grading on the clarity scale. A flawless diamond has no inclusions or blemishes visible under 10x magnification.
The texture on a metal’s surface in which small lines are engraved in a crosshatch pattern.
Holes are cut in the surface of the metal, and stones are placed inside. Only the tops of the stones are visible, and their tables are even with the metal’s surface.
The short chain attached to a pocket watch on one end and adorned with a decorative ornament on the other.
Fold Over Deployment Clasp
A metal watch clasp with three parts that extend out to fit over the wearer’s hand. When closing the clasp, the metal parts fold internally as the top latches onto the band. An extra piece of metal folds over the top of the latch and snaps into place. This clasp can also include push buttons on either side.
The four distinct characteristics – cut, color, clarity and carat weight – that classify each diamond. Experts use these classifications to establish the value and quality of every diamond. For more information, visit our guide to the 4Cs.
Resembling the fullness of a foxtail, this chain is expertly designed by interweaving bent circles of metal together in a continuous pattern.
Freshwater pearls are harvested from freshwater rivers and/or lakes in China, Japan and the United States.
A small metal back is pushed on the earring’s post through a hole, preventing it from slipping off.
The reddish-brown birthstone for January. Less common varieties are found in all colors except blue. Garnet is also the traditional gift for the 18th wedding anniversary.
GemEx Systems is an independent laboratory that provides certification stating the measurement of brilliance for your Tolkowsky or Leo Diamond®. This certification is known as the “Return of Light.”
Gemscribe® is a unique serial number that is laser-inscribed on the girdle of your diamond and only visible under a 10x magnification. This ensures a Gemscribe® diamond will never be mistaken for any other.
A stone found in nature that has the necessary rarity, beauty and durability for use in jewelry. For more information, visit our Gemstone Guide.
The horizontal midsection and widest part of a diamond. The girdle may be polished, faceted or unpolished on a diamond, but is typically left unpolished on color stones.
This setting is used when stones are attached to metal by strong glue adhesive, rather than prongs or other metal settings.
The classic metal used for most jewelry. Pure gold (24K) is too soft to be used for jewelry so it is combined with other metals to enhance durability. For example, 14K gold is 14 parts gold and 10 parts other metals.
Gold Supply Chain
We take the impact of our company’s supply chain seriously, and we believe that gold should be extracted and processed in a manner that respects the needs of current and future generations. Learn more
The result of combining pure gold with a silver, copper and zinc alloy.
Metal wraps around either side of the stone’s girdle, rather than around the entire stone.
Either side of a stone is bordered and secured by a strip of metal.
Thin, light strips of metal that are secured in the center of the watch face and point to the hours, minutes or seconds.
Hardness (Moh’s Scale of Hardness)
The ability of a stone or mineral to resist scratching. Hardness is measured from 1-10, 10 (diamonds) being the hardest.
Stones cut in the shape of a heart. Heart-shaped diamonds are a variation of the round brilliant-cut.
A flexible chain that lies flat around the neck.
A watch clasp that cannot be seen from the outside of the band. Portions of the metal band expand out to fit over the hand and internally fold, bringing the ends of the band together for a seamless look. Can include push buttons for added security.
Metal with a shiny, reflective surface.
Very popular in hoop earrings, this back has a hinged piece of metal that goes through the ear and snaps into a latch on the opposite side of the earring.
A cut diamond is a series of prisms and mirrors, and the way light is returned out of the top of the diamond – not its sides or bottom – determines how brilliant and fiery a diamond is. “Ideal” is not just an adjective… it’s become the industry standard for the set of
proportions, ratios and angles known as the American Ideal Cut.
International Gemological Institute. The largest independent institution that certifies gems and appraises diamonds.
The natural birthmarks inside a stone that can affect its flow of light and also add uniqueness and character. Inclusions vary in size, shape, quantity, position and color.
A portion of the metal setting has been cut away and replaced by a stone. In this setting, the stones are flush with the metal surface.
International Gemological Institute (IGI)
An international organization that independently certifies diamonds as to their quality and authenticity.
Several stones are mounted together by metal under the stones. The metal cannot be seen from above, making the stones appear as if they have no setting at all.
The standard measurement of gold. Pure gold is 24 Karats.
Seiko Kinetic is the first and only quartz watch powered by human energy. It runs entirely on self-generated energy from the natural movement of the wrist, so the Kinetic watch never needs a battery change.
A color stone produced in a laboratory setting. Lab-created stones have the same chemical, physical and optical properties as natural gemstones.
Le Vian Gold Warranty
All Le Vian® pieces come with a Certificate of Authenticity and are covered under a Limited Lifetime Warranty.
Handcrafted by the master diamond artisans at Leo Schachter, the Leo Diamond® is the first diamond ever to be independently measured and certified for superior brilliance To learn more, click here.
All LeVian® pieces come with a Certificate of Authenticity and are covered under a Limited Lifetime Warranty and Trade in Warranty.
Named for its resemblance to a lobster claw, this clasp has a hook with a spring-powered arm that can be opened and closed. The hook is attached to the opposite end of the chain, and the arm is closed to secure the chain.
A magnification tool used by jewelers to analyze gemstones and other jewelry materials. Diamonds and color stones are always evaluated at 10x magnification and in the face-up position.
Mariner Link Chain
Also called an anchor link chain, this chain is made up of oval links with a strip of metal down the middle of each link.
The time increment symbols located on the watch dial, or stamping found on fine jewelry indicating gold content, manufacturer’s trademark and sometimes the stone weight.
A type of cut in which the stone is elongated and pointed at both ends. A marquise stone is longer than it is wide.
Fine jewelry and jewelry settings are crafted of metal. Common metals include gold, silver, platinum and titanium. Metals can be used in pure form or combined to increase durability. For additional information, visit our Metals Guide.
A decorative technique in which a beaded design is impressed into the metal.
In jewelry that has more than one diamond, the clarity may vary from one stone to the next. All of the diamonds in that piece have a clarity equal to or better than the minimum clarity rating given. Diamond clarity is one of the 4Cs. It measures the amount/absence of
inclusions in and blemishes on a diamond. Clarity ranges from flawless to included/imperfect.
In jewelry that has more than one diamond, the color may vary from one stone to the next. All of the diamonds in that piece have a color equal to or better than the minimum color rating given. Diamond color is one of the 4Cs. It measures the amount of body color
(tint) in a diamond on a scale from colorless to yellow/brown or gray.
A way in which diamonds are cut. Mixed-cut diamonds combine the qualities of the brilliant and step-cuts.
The abbreviation for millimeter; our standard unit of measurement for jewelry dimensions. For an approximate conversion to inches, see below.
3MM is approximately 1/8 inch
6MM is approximately 1/4 inch
13MM is approximately 1/2 inch
19MM is approximately 3/4 inch
25MM is approximately 1 inch
50MM is approximately 2 inches
75MM is approximately 3 inches
Moh’s Scale of Hardness
The scale used to measure the degree to which a stone or mineral is resistant to scratches. Hardness is measured from 1-10, 10 (diamonds) being the hardest.
Mother of Pearl
Thin layers of nacre that make up the iridescent interior of a mollusk shell. These layers are removed and used for watch faces and other pieces of jewelry.
Movado will, within two (2) years from date of purchase, repair or replace (at Movado’s option) the movement of your Movado watch free of charge if such movement proves to be defective in material or workmanship under normal use. See complete warranty
A substance produced in mollusk shells that coats particles and other foreign objects. Over time, layers of nacre build up around the particles to form pearls.
Natural Fancy Color Diamonds
Diamonds with a deep body color, including brown, yellow, blue, violet, orange, pink and red. Fancy color diamonds are unusual and therefore highly valued. They are rated Z+ on the color scale and have nine saturation levels from Faint to Fancy Vivid.
Diamonds with little or no color visible to the naked eye. Near-colorless diamonds are classified as G, H, I or J on the color scale.
The nick setting is similar to the channel setting. Stones are placed in a row, with metal bordering either side. In a nick setting, small prongs are nicked from the surrounding metal to secure the stones.
A straight piece of metal (a post) goes through the earlobe while a hinged curved arm supports the back of the earring.
Small rectangular pieces of metal are linked together on a flexible wire that is invisible to the eye. Omega chains are arched on top but lay flat against the neck and can be decorated with a slide.
A traditionally black gemstone used to celebrate the 7th wedding anniversary.
This gemstone is believed to reflect the colors of all other gemstones. Opal is the birthstone for October and the traditional gift for the 14th wedding anniversary.
A stone with an elongated round shape. This cut is popular for color gemstones.
Palladium is a rare and lustrous silvery-white metal.
The lower part of a diamond, located between the girdle and the culet.
Multiple small stones set in a curved or flat surface and held in place by prongs. The prongs are created by hand from the surrounding metal with the use of a fine sharp gravers tool. The tables of the stones will all be level with the jewelry surface.
Also known as teardrop-shaped, a pear-shaped stone features a rounded bottom edge that comes to a point at the top.
Organic gemstones created from layer upon layer of nacre and produced in mollusk shells. Pearls are the traditional anniversary gemstone for the third and 30th year of marriage and the birthstone for June. Today, because of their rarity in nature, most pearls are
cultured. For more information, visit our Cultured Pearl Guide.
This gemstone is known for its yellow-green color. Peridot is the birthstone for August and the traditional gift for the 16th wedding anniversary.
The result of combining pure gold with large amounts of copper. Also called “Rose” or “Red” Gold.
A durable precious metal, valued for its white color and purity. Platinum is hypoallergenic. To be called platinum, it must contain at least 90% pure platinum (10% other metals). (585 Platinum contains 58.5% platinum, 41.5% other metals.)
The condition of a diamond or metal’s surface.
The metal part of the earring that goes through the pierced earlobe.
A type of cut featuring a square stone.
A stone rests in a metal base with prongs that extend to its girdle, securely holding it in place. Four-prong settings are the most popular, but some settings use more for added security.
How a diamond’s angles and parts relate to one another.
Push On Screw Off Earring Backs
A small metal back is pushed onto the earring’s post and unscrewed when removed.
PVD stands for Physical Vapor Deposit, a process by which a durable finish or coating is applied. The black color, a carbon and titanium composite, is placed into a pressurized chamber with the stainless steel watch parts. The composite is forced into the surface of
the steel, coloring the case and bracelet black.
An eight-sided rectangular or square-cut stone with approximately 70 facets.
Return of Light
The amount of light that reflects out the top of the diamond to the eye, or the measurement of diamond brilliance.
A shiny platinum group metal that increases whiteness and strength of other metals. A rhodium finish also helps to prevent tarnishing.
Several strips of metal are twisted together, resulting in a chain with a rope pattern.
Diamond cutters have developed this cut over hundreds of years. The round cut brings out a diamond’s brilliance, dispersion and scintillation.
The red form of the mineral, corundum. Along with sapphires, rubies are the second hardest minerals, (diamonds are the hardest). Rubies serve as the birthstone of July and the traditional gift for the 15th and 40th wedding anniversaries.
A form of the mineral, corundum, that comes in every color except red. Sapphires and rubies are the second hardest minerals, (diamonds are the hardest). Sapphire is the birthstone of September and the traditional gift for the 5th, 23rd and 45th wedding
A timepiece crystal that is crafted of natural or lab-created sapphire, the second hardest mineral on the Moh’s Scale of Hardness (diamonds are the hardest).
Similar to a brushed-finish, a satin-finish adds texture with small grooves in the metal’s surface. This reduces the metal’s reflectivity and adds a desirable soft sheen.
The sparkle or flash emitted by diamonds when they are moved under light.
Screw backs are typically used for diamond earrings. This secure backing features small metal backs that screw onto the post.
Seiko offers a worldwide watch warranty for the first year after the original date of purchase. The second and third years are valid for watches serviced in the United States. See complete warranty.
A type of metal used for jewelry. Silver is often combined with other metals to increase its strength. Sterling silver consists of 92.5% pure silver and 7.5% alloy.
A piece of jewelry that slides onto an omega chain and acts as the centerpiece.
The look of this chain is similar to the body of a snake as thin bands of metal are closely secured together.
Very popular in hoop earrings, this back has a hinged piece of metal that goes through the ear and snaps into a latch on the opposite side of the earring.
The process of melting metal and joining it together to make, repair or adjust jewelry.
Rings, earrings or necklaces that feature a single diamond in a metal setting.
Spring Ring Clasp
This popular clasp features a small metal ring with a gap that can be opened and closed by a spring-powered lever. This ring attaches to a metal ring with no gap on the opposite end of the chain.
A strong metal used for jewelry that is less likely to rust or corrode than regular steel or other jewelry metals.
A way in which diamonds are cut. Step-cut diamonds feature rows of facets positioned in a step-like fashion. Most step-cut diamonds have four sides and a rectangular shape, such as emerald or baguette diamonds.
A durable jewelry metal consisting of at least 92.5% pure silver and 7.5% alloy.
The small dials located on the watch face that display chronograph functions of the watch such as the stopwatch, timer, elapsed time measurement, date, day of the week and moon phase.
A Supreme-Fit™ band is heavier than other bands making it more durable. It also is contoured on the inside for a more comfortable fit.
The precision of a diamond’s cut.
An instrument on the watch that measures time and distance to determine speed. Tachymeters are typically used to measure high rates of speed.
Dark colored pearls grown in black-lipped oysters. Because of their rarity in nature, most Tahitian pearls are now cultured.
A fairly new gemstone discovered in Tanzania in 1967. Tanzanite is known for its bluish-purple hues and is December’s newest birthstone as well as the traditional gift for the 24th wedding anniversary.
Also known as pear-shaped, a teardrop-shaped stone features a rounded bottom edge that comes to a point at the top.
A stone is held on either side by the metal setting, as if it was floating in the air. Unlike other settings, the tension setting exposes almost the entire stone.
A three-piece (or trio) set is a bridal set (engagement ring and her wedding band) with a matching wedding band for him.
A popular jewelry metal, especially for wedding bands and watches. Titanium weighs 1/3 less than gold, but is extremely strong.
A metal bar on one end of the chain fits through a small metal ring on the opposite end. When flat, the bar cannot fit back through the ring, securing the ends together.
This clasp has a V-shaped piece of metal that securely fits into a box on the opposite end of the chain.
The ability of a stone to resist pressure from impact.
Tourmaline occurs in more colors or combination of colors than any other gemstone. It is heat resistant, extremely durable and the traditional gift for the 8th wedding anniversary.
A type of cut in which the stone has three distinct sides.
A fairly new metal in the jewelry industry often used for wedding bands. Tungsten is resistant to corrosion and four times harder than titanium.
Colorful hand-blown glass crafted in Venice, Italy. Some Venetian glass is blown with 24K gold or silver leaf.
A strip of leather, rubber, cloth or metal that attaches to the case and wraps around the wrist. Metal bands can be resized by adding or removing links; leather bands offer several buckle holes for the best fit.
The internal device that keeps time. The first watches were mechanical, with a balance wheel and mainspring. They had to be wound to keep time. Most watches today use a quartz crystal and a battery for power – they don’t require winding. Automatic watches are
self-winding, powered by the everyday motion of your wrist.
The feature of a watch that denies water and moisture from penetrating inside its case. No watch is completely waterproof, but several can withstand rain and splashing. Water resistance is measured in ATMs (atmospheric pressure). This number is usually printed
on the back of the case.
A durable chain made up of interweaving bands of metal, resembling a grain of wheat.
White gold is created by combining pure gold with a copper, zinc and nickel (or palladium) alloy.
Your new Wittnauer timepiece is warranted only to the original owner for 5 years from the date of purchase. See Complete Warranty.
Pure gold is 24 Karat, which is too soft for gold jewelry. By combining with copper and silver, yellow gold retains a rich yellow color while increasing its durability.