AltGems
Updated as of June 2026

Oval Black Diamond

Black Diamond in a oval cut pairs a brilliant with Black Diamond's black color and Mohs 10 hardness.

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Why the oval cut works for Black Diamond

A brilliant, elongated cut that looks larger per carat and flatters the finger. Black Diamond reads more for color than fire, so a oval cut is about shape and color rather than sparkle. At Mohs 10, Black Diamond holds a crisp oval outline and stands up to everyday wear. Treatment to expect: irradiation or heat (most stones treated black).

Other Black Diamond cuts

Round Black DiamondEmerald Cut Black DiamondCushion Black DiamondPrincess Black DiamondPear Black Diamond

More on this stone: Black Diamond overview, price guide, and the oval cut guide across stones.

Frequently asked questions

Does Black Diamond look good in a oval cut?
Yes. Black Diamond reads more for color than fire, so a oval cut is about shape and color rather than sparkle. It is hard enough to hold a crisp outline.
How much does a oval Black Diamond cost?
Black Diamond runs about $200 to $3,000 per carat. Shape affects price modestly, with round usually the slight premium.
What setting suits a oval Black Diamond?
Black Diamond pairs well with white gold, platinum, yellow gold. A three-stone setting frames it nicely.