"Lab diamonds and natural diamonds are chemically and optically identical. They are both tetrahedral crystalline carbon. They have the same strength and durability, and are graded to the same scale ...

The NDC report found that consumers still prize natural diamonds for their timeless status as an emotional gift to celebrate ...

Gemstones are valued based on the Four Cs - color, clarity, cut, and carat. Precious stones include diamonds, sapphires, ...