A universal grading system developed by GIA (Gemological Institute of America) to evaluate the quality of a diamond. The 4 C's are Carat, Color, Clarity, and Cut.
A mixture of two or more metals to create more desirable characteristics and/or added strength
An irregular-shaped stone or pearl. Also an art style characterized by ornate detail.
A term informally referring to non-precious metals (such as copper, zinc, tin, nickel, lead or iron), which are commonly used in costume jewelry.
Pertaining to diamonds, this term has two components: brightness and contrast. Brightness refers to the amount of light returned from the diamond's surroundings and back to the observer. To be brilliant, a diamond also needs contrast, intensity of the white light from the crown of a polished diamond or other gemstone.
A polished, convex-cut, unfaceted gemstone. Typically has a flat back.
Computer-aided design and manufacturing.
A design cut in relief, usually into a hard gemstone or shell.
A unit of weight for precious and semi-precious gemstones, equal to 200 milligrams.
Describes the convex interior of a ring.
Designs that are up-to-date with current trends in the industry with a modern flair.
Short for Cubic Zirconia, a man-made gemstone created to simulate a diamond. Approximately 64% heavier than a diamond.
The power of a diamond when breaking up its light into its constituent colors.
Abbreviation for pennyweight. There are 20 pennyweights in an ounce (Troy).
An opaque or semi-transparent glass or substance applied to a metal surface for protection or ornamental purposes.
The flat, polished surface of a gemstone that affects a gemstone's brilliance and sparkle.
Lace-like ornamental work formed from thin wires of intricately-arranged intertwined precious metal. May be plain, twisted, or plaited.