Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is tasteless, odorless, strong, brittle solid, colorless in pure form, a …

Get to know all you need about diamond – the history, facts, quality factors, treatments, imitations and much more here at GIA.

Nov 19, 2025 · A diamond is a mineral composed of pure carbon. It is the hardest naturally occurring substance known; it is also the most popular gemstone. Because of their extreme …

What is Diamond? Diamond is a rare, naturally occurring mineral composed entirely of carbon. Each carbon atom in a diamond is surrounded by four other carbon atoms and connected to …

This diamond guide explains how the 4 C's of diamonds — cut, color, clarity, and carat — determine a diamond's quality grade. Learn what to look for when choosing the perfect diamond.

6 days ago · Interested in the history of diamonds? Learn where diamonds were discovered, how they got their name, and the first diamond engagement ring proposal.

Shop the diamond jewelry collection at Neiman Marcus. Where artistry meets elegance, explore rings, necklaces, earrings and more to find your perfect sparkle.

Diamonds Search through over 200,000 GIA certified diamonds. Buy your diamond loose or mounted in one of our custom engagement ring, earring, or pendant settings.

Diamond[a] is a gemstone formed by cutting a raw diamond. Diamonds have high monetary value as one of the best-known and most sought-after gems, and they have been used as …

From crowns to engagement rings, diamonds have been a central aspect of many of life’s celebrations and historical milestones. They have been associated with legends and folklore. …