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Nexus Diamond™ Alternative

Meet your new best friend.

Today, you can choose between stones from the earth and stones created in labs. The Nexus Diamond™ alternative is a patented lab created diamond simulant that, among all simulants, most closely imitates the look and wear of a diamond, with two exceptions – it is absolutely perfect in every way, and it costs significantly less.


Simulates a perfect diamond and even cuts glass.


D color (completely colorless).


IF clarity (Internally flawless).

Ideal Cut

Ideal Cut for maximum brilliance and fire.


Affordable—up to 90% less than mined diamonds.


Environmentally friendly, because it is not mined.


Ethically pure, free of forced labor.


Certified by Forever Companies and guaranteed to stay perfect, forever.

Because the Nexus Diamond alternative is superior to a mined diamond, the choice comes down to the chemistry of the stone. We believe that for most couples, their savings might be better spent on things that matter more than the composition of a stone.

If the chemistry of your stone does matter, we recommend a pure carbon man made diamond from our sister company, 12FIFTEEN Diamonds.

Compare Nexus Diamond alternatives to mined diamonds and other alternative stones.

When cost and quality aren’t a concern, you are free to choose based on style. Amazing, isn’t it?


Colorless, flawless, and ideal cut. Every time.


Common sense, transparent pricing. Up to 90% less than diamonds.


Made in a lab, not mined from the ground.


Made to be passed down for generations.

Review Stars

Tapered Classic Round Cut Solitaire

My fiancé and I couldn’t be happier with our ring. Not only is the stone flawless and the ring stunning but it was a fraction of the price, leaving us with more to spend on our wedding!


Review Stars

Prague Halo

This ring is a wonderful, elegant piece, I got the large stone and rose gold, and totally blew her away. Everyone who sees it loves it. The shine is amazing.


Review Stars

Gwyneth Round Cut

Stunning. Incredible. Unbelievable value. Just some of the things that come to mind with this ring…I never would have been able to get a mined diamond close to this size for 5 times the price!


Review Stars

Valencia Princess Cut

The stone is gorgeous, and ring itself looks very elegant and high-end. [My fiancée] gets complemented on it where ever she goes.


Review Stars

Bali Round Cut

I LOVED the idea of a more sustainable diamond look-alike and the price allowed for me to get a much larger carat size too. I expected it to look lovely, but what I wasn’t expecting was for it to also “feel” like a real diamond…It really feels like a win-win-win to me (perfect cut/clarity/color + sustainable/socially responsible + still affordable and twice the size).


Review Stars

Montreal Round

I am in love with this ring! I have never been so excited to put on a piece of jewelry every single day. Literally, all I do all day is stare at my hand. I have gotten so many compliments on it– the sparkle can’t help but catch the eye. I am so happy that I took the time to research diamond alternative stones. Diamond Nexus truly does produce heirloom quality jewelry.


Love From The Lab

Welcome to the freedom to choose. Choose your style. Choose to make a positive impact on the world. Choose to wear confidence.

Welcome to Diamond Nexus

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