For the first time, gemologists and jewelers will have access to an innovative solution for diamond color grading.

A poorly cut diamond will appear dull and lifeless, even if it has excellent clarity and color. The GIA grades cut quality on a scale from Excellent to Poor, with higher grades ensuring better ...

The Venus Jewel Matched Pair Report verifies diamond pairs based on 25+ grading parameters, including cut, color, clarity, ...

Each individual stone is priced based on its rarity and quality — color, clarity, cut, and carat weight — though diamonds, rubies, emeralds, and sapphires generally sell for the most money.