Black diamond rings for every occasion — engagement rings, wedding bands, solitaires and statement rings — each handcrafted to order in 14K or 18K gold or platinum. A black diamond is a real diamond (10 on the Mohs scale) with a dramatic opaque color that pairs beautifully with white-diamond accents and rose, yellow or white gold.
Black diamond buying guide & FAQ
Are black diamonds real diamonds? Yes. Black diamonds are genuine carbon diamonds whose color comes from dense dark inclusions (natural) or from treatment. They measure 10 on the Mohs scale, the same as white diamonds, so they are suitable for daily wear.
Natural or treated black diamond — which does Segal use? Both are available. Natural black diamonds are rarer and cost more; treated black diamonds are natural diamonds darkened by heat or irradiation and look identical to the eye. Black moissanite is offered as a lower-cost alternative on most designs.
How much does a black diamond ring cost? Typically less than a comparable white diamond. Segal's black diamond rings start around $1,000 and rise with carat weight, metal, and setting complexity. Every ring is made to order in 14K or 18K gold or platinum.
Which metal looks best with a black diamond? White gold and platinum give the highest contrast; rose gold gives a warm, vintage look; yellow gold reads bold and modern. All three are available on every design.
Can a black diamond ring be resized? Yes — every Segal ring includes free resizing within 60 days and a lifetime warranty.
Can I try the ring on before I buy it? Yes. For $199 Segal 3D-prints an exact replica of any ring design in your finger size so you can try it at home. You keep the replica, and the full $199 is credited toward the real ring (orders $1,000+, credit never expires). See Try It In Real Life.
Custom-made in the USA · lifetime warranty · free resizing · free shipping · 30-day returns · updated 2026. See the complete black diamond guide.
