Black Diamond Rings

Discover our Black Diamond Ring Collection.
Solitaires, trilogies, side stones or halos, customize your ring in 18k gold of 3 different colors and with 4 shapes of stones.
To complete your look, discover our Black Diamond Earrings and Black Diamond Pendants.

Solar | 18k White Gold 4.5 mm Round Black Diamond Ring

Solar Round Black Diamond Ring

From $1,680

Sunrise | 18k White Gold 5 x 3 mm Emerald Black Diamond Ring

Sunrise Halo Emerald Black Diamond Ring

From $1,750

Sunrise | 18k White Gold 5 x 3 mm Oval Black Diamond Ring

Sunrise Halo Oval Black Diamond Ring

From $1,610

Sunrise | 18k White Gold 5 x 3 mm Pear Black Diamond Ring

Sunrise Halo Pear Black Diamond Ring

From $1,580

Sunrise | 18k White Gold 4.5 mm Round Black Diamond Ring

Sunrise Round Black Diamond Ring

From $1,780

Suspense | 18k White Gold 3 mm Round Black Diamond Ring

Suspense Round Black Diamond Ring

From $800

Timeless | 18k White Gold 5 x 3 mm Emerald Black Diamond Ring

Timeless Emerald Black Diamond Ring

From $1,240

Timeless | 18k White Gold 5 x 3 mm Oval Black Diamond Ring

Timeless Oval Black Diamond Ring

From $1,160

Timeless | 18k White Gold 5 x 3 mm Pear Black Diamond Ring

Timeless Pear Black Diamond Ring

From $1,130

Timeless | 18k White Gold 4.5 mm Round Black Diamond Ring

Timeless Round Black Diamond Ring

From $1,430

Treasure | 18k White Gold 6 x 4 mm Emerald Black Diamond Ring

Treasure Emerald Black Diamond Ring

From $1,590

Treasure | 18k White Gold 6 x 4 mm Oval Black Diamond Ring

Treasure Oval Black Diamond Ring

From $1,450

Treasure | 18k White Gold 6 x 4 mm Pear Black Diamond Ring

Treasure Pear Black Diamond Ring

From $1,420

Treasure | 18k White Gold 4.5 mm Round Black Diamond Ring

Treasure Round Black Diamond Ring

From $1,460

Trio | 18k White Gold 4.5 mm Round Black Diamond Ring

Trio Round Black Diamond Ring

From $1,780

Trio | 18k White Gold 7 x 5 mm Emerald Black Diamond Ring

Trio Trilogy Emerald Black Diamond Ring

$2,400

Trio | 18k White Gold 5 x 3 mm Oval Black Diamond Ring

Trio Trilogy Oval Black Diamond Ring

From $1,150

Union | 18k White Gold 1.3 mm Round Black Diamond Ring

Union Round Black Diamond Ring

From $1,260

Unique | 18k White Gold 2.5 mm Round Black Diamond Ring

Unique Round Black Diamond Ring

From $1,450

Valentine | 18k White Gold 1.7 mm Round Black Diamond Ring

Valentine Round Black Diamond Ring

$1,600

Veil | 18k White Gold 1.5 mm Round Black Diamond Ring

Veil Round Black Diamond Ring

$1,080

Verse | 18k White Gold 1.3 mm Round Black Diamond Ring

Verse Round Black Diamond Ring

$1,860

Water | 18k White Gold 6 x 4 mm Oval Black Diamond Ring

Water Oval Black Diamond Ring

From $1,700

Water | 18k White Gold 6 x 4 mm Pear Black Diamond Ring

Water Pear Black Diamond Ring

From $1,670

Water | 18k White Gold 6 mm Round Black Diamond Ring

Water Round Black Diamond Ring

$2,130

Waterfall | 18k White Gold 6 x 4 mm Oval Black Diamond Ring

Waterfall Oval Black Diamond Ring

From $1,930

Waterfall | 18k White Gold 6 x 4 mm Pear Black Diamond Ring

Waterfall Pear Black Diamond Ring

From $1,900

Waterfall | 18k White Gold 6 mm Round Black Diamond Ring

Waterfall Round Black Diamond Ring

$2,360

Whisper | 18k White Gold 1.3 mm Round Black Diamond & Diamond Ring

Whisper Round Black Diamond & Diamond Ring

$1,190

Whisper | 18k White Gold 1.3 mm Round Black Diamond Ring

Whisper Round Black Diamond Ring

$1,070

Zenith | 18k White Gold 6 x 4 mm Emerald Black Diamond Ring

Zenith Emerald Black Diamond Ring

From $1,470

Zenith | 18k White Gold 6 x 4 mm Oval Black Diamond Ring

Zenith Oval Black Diamond Ring

From $1,330

Zenith | 18k White Gold 6 x 4 mm Pear Black Diamond Ring

Zenith Pear Black Diamond Ring

From $1,300

Zenith | 18k White Gold 4.5 mm Round Black Diamond Ring

Zenith Round Black Diamond Ring

From $1,340

Made-to-Order Black Diamond in 18k Gold

GEMNAT’s black diamond rings are crafted in 18k gold and set with natural, AAA-quality black diamonds. Their deep, opaque tone and modern look make them a popular choice for those seeking a distinctive alternative to traditional white diamonds.
This collection includes a range of customizable styles: solitaire, trilogy, halo, side-stone, pavé, engagement rings, and wedding bands — all available in multiple center stone sizes.

Customization Options

Choose from yellow, white, or rose 18k gold
Available in multiple center stone sizes
Full size range, including half sizes
Black diamond is one of 15 natural gemstones available at GEMNAT

About Our Black Diamonds

We use only naturally formed black diamonds, hand-selected by GEMNAT gemologists in AAA quality. Sourced through Antwerp from trusted origins in India and Africa, each stone is evaluated for its depth of color, finish, and overall consistency.
Black Diamond, the alternative birthstone of April, symbolizes strength, mystery, and individuality — a bold and meaningful choice for celebrating birthdays, personal milestones, or modern commitments.
Learn more about gemstone meanings and all 12 birthstones on our Birthstone Guide.

What to Expect

Made to order in our atelier, production in 6–8 days
Delivered worldwide via tracked DHL Express (2–3 days)
Presented in GEMNAT’s premium packaging

Why Choose GEMNAT

Natural black diamonds, carefully selected for quality
Customization across design, size, and gold color
Fair pricing, 30–70% lower than traditional retail
Free resizing and 30-day money-back guarantee
Transparent sourcing and direct-to-client service