Diamonds are forever
That's a promise.

We are committed to ensuring the quality of your purchase; we stand behind everything that we sell and warrant that all items will be free from any manufacturing defects at the time of delivery.

Here's what you need:

⟡ Order no.

⟡ Copy of ID or passport

⟡ Certificate no.

Please Contact Us if you have any questions or would like to return your item(s) to take advantage of our free lifetime warranty or request additional repair work needed to service your Granddiamonds jewelry.

Our lab-grown diamonds

Our diamonds are just like mined diamonds;
Except they're much, much, better...

Producing lab-growns:

Indistinguishable, even by experienced gemologist, lab-grown diamonds are created by replicating the natural diamond growing process.

First, a diamond seed is placed inside a sealed, oven-like chamber. Then the gases in a plasma cutter are ionized after which carbon-rich gas is ionized, and the pure carbon attaches to a diamond seed. The carbon crystalizes slowly, forming a crystalline structure.

Thanks to this cutting edge technology, we can proudly wear diamonds again.


Complimentary lifetime warranty on all orders.

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Complimentary delivery, returns and exchange on all orders!