AltGems
Updated as of June 2026

Black Diamond engagement rings

An opaque black diamond valued for bold modern style and associated with strength, confidence, and protection. Here is how it works in engagement rings specifically.

Find your piece
Shop Black Diamond engagement rings
Shop now

Choosing a Black Diamond engagement ring

At Mohs 10, Black Diamond is hard enough to hold up well in a engagement ring. For color, look for an even black tone, and match the metal to your skin tone and budget.

Best metals and settings

Black Diamond pairs well with white gold, platinum, yellow gold. A bezel or halo setting adds protection for daily wear. Compare options in our metal guides.

More on this stone: Black Diamond overview, price guide, and care guide.

You may also like

8.4

Diamond

Colorless · Mohs 10
7.2

Lab-Grown Diamond

Colorless · Mohs 10
5.4

Onyx

Black · Mohs 6.75

Frequently asked questions

Is Black Diamond good for a engagement ring?
At Mohs 10, Black Diamond is hard enough to hold up well in a engagement ring.
How much does a Black Diamond engagement ring cost?
The stone itself runs about $200 to $3,000 per carat, and the finished engagement ring price depends on the metal and setting. Black Diamond pairs well with white gold, platinum, yellow gold.
What metal suits a Black Diamond engagement ring?
Black Diamond looks best in white gold, platinum, yellow gold. See our metal guides to weigh durability against cost.