Diamond is a solid form of pure carbon with its atoms arranged in a crystal. Solid carbon comes in different forms known as allotropes depending on the type of chemical bond. The two most common …

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

May 15, 2026 · 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 hardness, …

Comprehensive natural All diamond price guide. Compare prices across all carat sizes and quality grades. Find the best deals updated daily.

The world’s love of diamonds had its start in India, where diamonds were gathered from the country’s rivers and streams. Some historians estimate that India was trading in diamonds as early as the …

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 decorative items …

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Use our diamond search feature to find IGI and GIA-graded conflict-free loose diamonds for engagement rings, jewelry and more. Browse thousands of options and use the filters to narrow …

Dec 22, 2025 · Diamond trading and investment is a multi-billion dollar industry, with major diamond centers located in cities such as Antwerp, Dubai, and Mumbai. Overall, diamonds are highly valued …

Jan 30, 2026 · Pick the perfect diamond shape with this guideWhether you're shopping for an engagement ring or you just love browsing jewelry, there's nothing more classic and timeless than a …