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AGS
AGS is the American Gem Society and is the recognized
authority for grading gemstones in the jewelry industry.
AGS has a cut grading system for round diamonds.
Alloy
Alloy is a mixture of two or more metals.
Appraisal
Appraisal is a written estimate of the approximate retail replacement
value of an item described. They can be used for insurance purposes and
should be updated every few years.
Asscher Cut
Asscher Cut is the step cut diamond shape with cut-corners and square
shape.
Alloy
Alloy is a mixture of two or more metals.
Appraisal
Appraisal is a written estimate of the approximate retail replacement
value of an item described. They can be used for insurance purposes and
should be updated every few years.
Asscher Cut
Asscher Cut is the step cut diamond shape with cut-corners and square
shape.
B
Baguette
Baguette is a rectangular shape into which gemstones and diamonds are
commonly cut. Baguettes are often used as side stones in ring mountings.
Bail
Bail is the attachment at the top of a pendant, enabling the pendant to
hang from a chain.
Bezel Facets
Bezel Facets are kite-shaped facets on the crown of brilliant-cut
diamonds. The star pavilion mains, and upper and lower girdle facets are
other facets found on brilliant cuts.
Blemish
Blemish is a flaw on the exterior of a diamond, such as a scratch,
abrasion, nick or chip
Blue-white
Blue-white refers to a diamond that glows (fluoresces) blue under
ultraviolet light
Bow Tie
Bow Tie is the dark shadow in poorly cut elongated diamonds that looks
like a man's bow tie when particularly noticeable.
Brilliance
Brilliance refers to the amount of light reflected through the surface
of a diamond and is maximized by cutting a diamond to the correct
proportions.
Brilliant Cut
Brilliant Cut is the common style of diamond cutting. The standard
brilliant cut consists of 32 facets plus a table above the girdle and 24
facets plus a culet below the girdle. Other shapes besides round can be
faceted as brilliant cuts, including oval, radiant, pear or heart.
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diamond
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