15 Trillion-Shaped Engagement Rings That Are Unexpectedly Gorgeous

This whimsical cut is the perfect blend of classic and cool.
Vrai and Oro trillion cut diamond ring
Vrai & Oro
The Knot
Updated Feb 05, 2019
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Have you ever seen a trillion-cut diamond or gemstone engagement ring? (And don't worry, we're not talking about the number—aka these rings don't cost a trillion dollars.) Trillions are triangular diamonds or gemstones with three sides of equal length, and can come in different cuts (rose or brilliant cuts, for example).

They're often used as side stones to accent larger round or rectangular center stones—but these three-point stunners actually look gorgeous as the center of attention, whether they're set asymmetrically in a cluster of stones or resting alone on a simple gold band. Below, see 15 different trillion-cut engagement rings that are whimsical, modern and just plain cool.

​Suzi Zutic opaque yellow trilliant diamond Ophir ring

Suzi Zutic opaque yellow trilliant diamond Ophir ring, $7,050, SuziZutic.com

Vrai & Oro trillion diamond ring, $900, VraiandOro.com

​Kwiat radiant diamond engagement ring with trillion side stones

Kwiat radiant diamond engagement ring with trillion side stones, price upon request, Kwiat.com

​Audrey Rose trillion Duo ring

Audrey Rose trillion Duo ring, $390, LoveAudreyRose.com

​Vale Jewelry Venus ring

Vale Jewelry Venus ring, $1,950, ShopVale.com

​Diamond Nexus east-west trillion-cut diamond engagement ring

Diamond Nexus east-west trillion-cut diamond engagement ring, $1,176, DiamondNexus.com

​Andrea Bonelli 14-karat gold trillion diamond ring

Andrea Bonelli 14-karat gold trillion diamond ring, $1,278, AndreaBonelli.com

Luna Skye double band aquamarine trillion ring with diamond pavé, $3,250, LunaSkye.com

​Douglas Elliot Double Trillion diamond ring

Douglas Elliot Double Trillion diamond ring, price upon request, MarisaPerry.com

​Zoë Chico 14-karat trillion diamond ring

Zoë Chico 14-karat gold trillion diamond ring, $450, ZoëChico.com

​Bario Neal Prim Cluster trillion white sapphire ring

Bario Neal Prim Cluster trillion white sapphire ring, from $1,970, Bario-Neal.com

Rosedale blue sapphire trillion ring

Rosedale blue sapphire trillion ring, $295, ShopNo3.com

Natalie Marie Jewellery offset trillion gray diamond ring

Natalie Marie Jewellery offset trillion gray diamond ring, $2,200, NatalieMarieJewellery.com

​Digby & Iona trillion Cera ring

Digby & Iona trillion Cera ring, $4,650, DigbyandIona.com

Margery Hirschey grey diamond ring, $825, MargeryHirschey.com

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