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Coffin Cut Engagement Rings

A coffin cut engagement ring delivers the most distinctive gothic alternative-bridal silhouette in fine bridal jewelry. Read more
A coffin cut engagement ring delivers the… Read more
Kite Galaxy Sandstone (Starry Night®) Ring Set in Black Ruthenium on a pale lavender studio background with a soft reflection.
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Kite Galaxy Sandstone Ring Set

Black Ruthenium

from $185

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Lilith Red Garnet Coffin Ring Set in Black Ruthenium — front view
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Lilith Red Garnet Coffin Ring Set

Black Ruthenium

from $185

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Lilith Natural Herkimer Diamond Ring Set in Sterling Silver on a pale lavender studio background with a soft reflection.
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Lilith Natural Herkimer Diamond Ring Set

Sterling Silver

from $175

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Lilith Coffin Cut Emerald Ring Set in Black Ruthenium on a pale lavender studio background with a soft reflection.
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Lilith Coffin Emerald Ring Set

Black Ruthenium

from $185

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Coffin Cut Alexandrite & Moonstone Ring in Sterling Silver on a pale lavender studio background with a soft reflection.
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Coffin Alexandrite & Moonstone Ring

Sterling Silver

from $160

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Hexagon Coffin Green Moss Agate Ring Set

Sterling Silver

from $175

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Coffin Kite Natural Red Garnet Ring Set

Black Ruthenium

from $185

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Hexagon Coffin Green Moss Agate Ring Set

Black Ruthenium

from $185

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Kite Galaxy Sandstone Ring Set

14K Rose Gold Vermeil

from $205

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Coffin Raw Herkimer Diamond Ring

Black Ruthenium

from $165

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Hexagon Kite Mystic Topaz Ring Set

Sterling Silver

from $180

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Lilith Coffin Starry Night® Ring Set

14K Rose Gold Vermeil

from $205

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Hexagon Coffin Tanzanite Ring Set

Black Ruthenium

from $185

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Hexagon Coffin Rutilated Quartz Ring Set

Sterling Silver

from $175

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Coffin Lab Ruby & Black Onyx Ring

14K Rose Gold Vermeil

from $175

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Starry Night Coffin Kite Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold, featuring deep blue coffin kite gemstones with sparkling diamond accents in a celestial design.
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Starry Night® Coffin Kite Ring Set

Rose Gold

from $2,195

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Coffin Blue Sapphire & Black Onyx Ring

14K Yellow Gold Vermeil

from $180

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Galaxy Sandstone Ring

14K Rose Gold Vermeil

Regular price from $89.99 Up to (-55%)

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Hexagon Coffin Green Moss Agate Ring Set

14K Rose Gold Vermeil

Regular price from $109.99 Up to (-54%)

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Hexagon Coffin Green Moss Agate Engagement Ring Set in 14K White Gold by Aquamarise, on white
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Hexagon Coffin Green Moss Agate Ring Set

White Gold · Platinum

from $2,195

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Lilith Coffin Cut Black Onyx Ring Set in 14K White Gold
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Lilith Coffin Black Onyx Ring Set

White Gold · Platinum

from $2,145

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Coffin Cut Lab-Grown Diamond Bridal Set in 14K White Gold | IGI Certified, shown on a pale studio background with a soft reflection.
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Coffin Diamond Bridal Set

White Gold · Platinum

from $3,245

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Lilith Coffin Cut Natural Herkimer Diamond Ring Set in Solid 14K Rose Gold by Aquamarise Gold, featuring a unique coffin-cut natural Herkimer diamond accented by delicate sparkling stones, part of Solid Gold Engagement Rings and Alternative Engagement Rings collections.
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Lilith Coffin Natural Herkimer Diamond Ring Set

Rose Gold

from $2,145

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white gold salt and pepper diamond ring set
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Lilith Coffin Natural Herkimer Diamond Ring Set

White Gold · Platinum

from $2,145

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Midnight Blue Sapphire Ring Set

14K Rose Gold Vermeil

from $205

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Elongated Hexagon Lab Diamond Engagement Ring Set in 14K White Gold (IGI Certified) by Aquamarise, on white
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Elongated Hexagon Lab Diamond Ring Set

White Gold · Platinum

from $2,945

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Elongated Hexagon Moissanite Engagement Ring Set in 14K White Gold by Aquamarise, on white
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Elongated Hexagon Moissanite Ring Set

White Gold · Platinum

from $2,245

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Elongated Hexagon Lab Diamond Engagement Ring Set by Aquamarise, on white
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Elongated Hexagon Lab Diamond Ring Set

Rose Gold

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Elongated Hexagon Moissanite Engagement Ring Set in Solid 14K Rose Gold by Aquamarise, on white
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Elongated Hexagon Moissanite Ring Set

Rose Gold

from $2,245

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Coffin Cut Moissanite Engagement Ring Set in 14K White Gold by Aquamarise, on white
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Coffin Moissanite Ring Set

White Gold · Platinum

from $2,245

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Coffin Cut Lab-Grown Diamond Engagement Ring Set in 14K Solid Yellow Gold, shown on a pale studio background with a soft reflection.
Early accessIGI Certified

Coffin Diamond Ring Set

Yellow Gold

from $3,245

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Green Moss Agate Engagement Ring Set in 14K Solid Rose Gold by Aquamarise Gold, featuring a hexagon moss agate stone with diamond accents in a nature-inspired modern design.
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Coffin Green Moss Agate Ring Set

Rose Gold

from $2,195

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Hexagon Coffin Rutilated Quartz Geometric Engagement Ring Set in 14K White Gold by Aquamarise Gold featuring a unique rutilated quartz centerpiece with diamond accents on white gold bands.
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Hexagon Coffin Rutilated Quartz Geometric Ring Set

White Gold · Platinum

from $2,195

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Hexagon Kite Mystic Topaz Engagement Ring Set in 14K White Gold showcasing a vibrant kite-shaped mystic topaz with rainbow hues, accented by sparkling white diamonds on a polished white gold band by Aquamarise Gold.
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Hexagon Kite Mystic Topaz Ring Set

White Gold · Platinum

from $2,195

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A coffin cut engagement ring delivers the most distinctive gothic alternative-bridal silhouette in fine bridal jewelry. The coffin cut features an elongated hexagonal silhouette — six sides arranged in coffin-like proportions with two longer parallel sides and four shorter angled corners — producing the most architecturally distinctive shape in contemporary alternative bridal aesthetic. Coffin cut engagement rings carry deliberate gothic register that no traditional engagement ring cut replicates, making them particularly aligned with Aquamarise®'s broader gothic and dark romantic aesthetic territory.

Why Choose a Coffin Cut Engagement Ring

A coffin cut engagement ring signals gothic alternative-bridal aesthetic intent more explicitly than any other engagement ring shape. The coffin silhouette has zero mainstream defaults — couples choosing coffin cut engagement rings choose them with full awareness of the gothic register the cut carries. For couples drawn to gothic, dark romantic, or Lovers of the Dark™ aesthetic territory, the coffin cut engagement ring delivers the most fluent visual choice available.

Three factors make the coffin cut engagement ring distinctive: a coffin-shaped elongated hexagonal silhouette unavailable in any other commercial engagement ring cut, natural compatibility with black diamonds, salt-and-pepper diamonds, and other gothic alternative-bridal stones, and aesthetic alignment with broader gothic bridal aesthetic preferences (black metal finishes, dark stone choices, alternative setting configurations).

Coffin Cut Engagement Ring Settings

Coffin cut engagement rings perform best in settings that emphasize the cut's elongated gothic silhouette.

Solitaire Coffin Cut Engagement Rings

A solitaire coffin cut engagement ring isolates the coffin silhouette as the entire focal point — the most direct expression of the cut's gothic register. See solitaire engagement rings.

Bezel Set Coffin Cut Engagement Rings

A bezel set coffin cut engagement ring wraps the coffin silhouette in a custom-shaped metal frame — the most architectural setting for the cut. Particularly striking in black ruthenium finishes. See bezel set engagement rings.

Halo Coffin Cut Engagement Rings

A halo coffin cut engagement ring surrounds the coffin center with accent stones — particularly dramatic when paired with black diamond accents or salt-and-pepper accent configurations. See halo engagement rings.

Three-Stone Coffin Cut Engagement Rings

A three-stone coffin cut engagement ring flanks the coffin center with two smaller coffins or complementary cuts — the most architecturally cohesive multi-stone gothic configuration.

Black Metal Coffin Cut Engagement Rings

A black metal coffin cut engagement ring (ruthenium-finished sterling silver or solid gold) delivers maximum gothic register — particularly popular within Lovers of the Dark™ aesthetic territory. See black rings and the Lovers of the Dark™ black engagement rings collection for the broader gothic engagement ring selection.

Best Stones for Coffin Cut Engagement Rings

Moissanite Coffin Cut Engagement Rings

A moissanite coffin cut engagement ring delivers maximum brilliance through the coffin's modified brilliant faceting at Mohs 9.25 hardness. See moissanite engagement rings.

Black Diamond Coffin Cut Engagement Rings

A black diamond coffin cut engagement ring delivers the most explicitly gothic stone-cut combination available — black diamond's saturated black through the elongated coffin silhouette produces the most architecturally gothic register possible in fine bridal jewelry. Available through custom commission via Design Your Own Custom Ring.

Salt-and-Pepper Diamond Coffin Cut Engagement Rings

A salt-and-pepper diamond coffin cut engagement ring delivers the most aesthetically aligned alternative-bridal combination — salt-and-pepper diamonds (natural diamonds with visible black and white inclusions) read as deliberate gothic visual texture within the coffin's gothic outline. Available through custom commission.

Lab-Grown Diamond Coffin Cut Engagement Rings

A lab-grown diamond coffin cut engagement ring delivers traditional diamond material in gothic silhouette. See lab-grown diamond engagement rings.

Sapphire Coffin Cut Engagement Rings

A sapphire coffin cut engagement ring delivers saturated color through gothic framing — Mohs 9 hardness. Black sapphires particularly aligned with the gothic register. See sapphire engagement rings.

For custom coffin cut engagement rings in other stones, see Design Your Own Custom Ring.

Center Stone Size for Coffin Cut Engagement Rings

Coffin cut engagement rings work across a wide carat range because the distinctive elongated hexagonal silhouette reads clearly even at smaller carat weights. 0.75-2 carat is the most popular coffin cut engagement ring center stone range. Statement coffin cut engagement rings push to 2-3 carats and beyond. The elongated coffin silhouette accommodates larger center stones gracefully — particularly in solitaire and bezel set configurations.

Best Metals for Coffin Cut Engagement Rings

Black ruthenium-finished metals deliver maximum gothic register for coffin cut engagement rings — the most aesthetically aligned metal choice. See black rings for the broader black-metal selection. Sterling silver delivers clean alternative-bridal register. Yellow gold creates dramatic gothic-meets-classical contrast. Solid 14K gold for heirloom-grade gothic engagement ring construction.

Coffin Cut Engagement Rings vs. Other Cuts

Coffin Cut vs. Hexagon Engagement Rings

Coffin cut engagement rings and hexagon engagement rings both feature six-sided silhouettes, but coffin cut engagement rings have elongated coffin proportions (two longer parallel sides with four shorter corners) while hexagon engagement rings have regular hexagonal symmetry (six equal sides). Coffin cut reads as gothic alternative; hexagon reads as architectural alternative.

Coffin Cut vs. Emerald Cut Engagement Rings

Coffin cut engagement rings deliver elongated hexagonal gothic silhouette. Emerald cut engagement rings deliver rectangular Art Deco silhouette with trimmed corners. Both are elongated, but coffin cut reads as gothic alternative while emerald cut reads as Art Deco classical.

Coffin Cut vs. Kite Cut Engagement Rings

Coffin cut engagement rings deliver six-sided gothic silhouette. Kite cut engagement rings deliver a four-sided geometric silhouette. Both are alternative-bridal, but coffin cut reads as gothic while kite cut reads as architectural minimalist.

Coffin Shaped Rings, Coffin Cut Diamonds and How the Terms Differ

Shoppers arrive at this shape using three different names, and they do not always mean the same thing. Coffin shaped ring usually describes the outline — the elongated hexagon with two long parallel sides and four angled corners — regardless of what sits in it. Coffin cut diamond describes the faceting: a step-cut arrangement that trades disco sparkle for broad, clean flashes and a glassy table, closer to an emerald cut than to a brilliant. And a coffin cut ring can mean either, which is why the same design shows up under all three. Every piece in this collection is a true coffin shape rather than a rebranded hexagon; the proportions are deliberately longer and narrower.

The shape carries darkness better than it carries sparkle, which is why coffin cut black diamond and black onyx versions outsell the colorless ones here. For the stone itself see our guide to black gemstones and black onyx meaning, or shop black onyx engagement rings and black gemstone jewelry. Buyers pairing two rings should look at coffin wedding ring sets in couples engagement ring sets and wedding ring sets for women — a straight band leaves a gap against the angled corners, so a curved band is usually the better match. Sizing a pointed shape is unforgiving; our ring size chart is worth reading first.

Wedding Bands for Coffin Cut Engagement Rings

Coffin cut engagement rings pair beautifully with plain metal bands (letting the coffin silhouette remain the focal point), custom-contoured bands following the coffin's elongated edges, and black-metal wedding bands in matching ruthenium finishes for the most cohesive gothic register. See curved wedding bands, women's wedding bands, and couples engagement ring sets.

Customizing Your Coffin Cut Engagement Ring

Every Aquamarise® coffin cut engagement ring is customizable across stone choice (including black diamonds and salt-and-pepper diamonds via custom commission), stone tier, setting design, metal (including black ruthenium finishes), accent stones, and engraving. See Design Your Own Custom Ring. Complimentary engraving. Use our free ring sizer.

For the broader gothic engagement ring selection beyond coffin cut, see our Lovers of the Dark™ black engagement rings collection and alternative engagement rings.

We hold a 4.9-star average across 38,000+ reviews collected on our store and on Etsy, where we have sold since 2016.

Coffin Cut Engagement Rings FAQs

4.9

38,000+ verified reviews

“Absolutely stunning. Beautiful coffin cut garnet. The set is perfect for my fiancé and me.”

Tammy F., verified buyer

“This ring completely exceeds my expectations and it is absolutely gorgeous! I chose alexandrite for the meaning behind the stone: balance, transformation, joy, and good fortune.”

Sandi J., verified buyer

“Beautiful dark garnet, the ring I received looks exactly like the picture.”

Amanda, verified buyer

“Beautiful rings. My husband and I are very pleased with them.”

Emily, verified buyer

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