Glossary of Jewelry Terms

KT: (Karat) refers to the fineness of gold: one karat is equal to 1/24th part of pure gold in an alloy.

18KTY: 18 Karat Yellow Gold
18KTW: 18 Karat White Gold
18KTR: 18 Karat Rose Gold
14KTY: 14 Karat Yellow Gold
14KTW: 14 Karat White Gold
14KTR: 14 Karat Rose Gold

CT: (Carat) a unit of mass used in the jewelry industry to describe the weight of diamonds and other gemstones. One carat (CT) is equal to 200 milligrams or 0.2 grams.

CTW: (Total Carat Weight) The term refers to the sum of the weights of all diamonds mounted in a piece of jewelry.

SHANK: refers to the band of the ring or the part that actually encircles your finger. Most shanks are round, but there are also square shaped-shanks and other more creative shapes.

GIA : Gemological Institute of America; known as the leading authority for gemology internationally.

GIA Color Grading Scale: The GIA scale begins with the letter D, representing colorlessness, and continues with increasing presence of color to the letter Z, representing light yellow, light brown or light gray. The 23 color grades on the GIA Color Scale (or diamond color chart) are subdivided into five subcategories, which are: colorless (D-F); near colorless (G-J); faint (K-M); very light (N-R); and light (S-Z).

GIA Diamond Clarity Scale: The GIA Diamond Clarity Scale has 6 categories, some of which are divided, for a total of 11 specific grades.

• Flawless (FL) No inclusions and no blemishes visible under 10x magnification
• Internally Flawless (IF) No inclusions visible under 10x magnification
• Very, Very Slightly Included (VVS₁ and VVS₂) Inclusions so slight they are difficult for a skilled grader to see under 10x magnification
• Very Slightly Included (VS₁ and VS₂) Inclusions are observed with effort under 10x magnification, but can be characterized as minor
• Slightly Included (SI₁ and SI₂) Inclusions are noticeable under 10x magnification
• Included (I₁, I₂, and I₃) Inclusions are obvious under 10x magnification which may affect transparency and brilliance