Can I buy a oval engagement ring here?

You can buy the center diamond. The mounting is made or supplied by a jeweler. That is how these listings stay tied to one certified stone.

Lab-grown or natural oval?

Both are on this page until you filter type. Lab-grown costs less at the same grades. Natural is the mined stone.

Oval center diamonds

Oval diamonds stretch a brilliant facet pattern into an ellipse, so they usually look larger than a round of the same carat. This page is the center stone for a oval engagement ring, not a finished ring.

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Check the length-to-width ratio and the bow-tie. A dark bow-tie across the center is the main reason to pass on an otherwise well-graded oval. After you choose the diamond, a jeweler sets it. Carat Mate ships the certified loose stone and its lab report.

Carat Mate lists certified loose diamonds for shoppers in the United States, Canada, the UAE, London, and Australia. Prices are in USD everywhere. We ship to the United States, Canada, the UAE, London, and Australia.

Questions

Can I buy a oval engagement ring here?: You can buy the center diamond. The mounting is made or supplied by a jeweler. That is how these listings stay tied to one certified stone.
Lab-grown or natural oval?: Both are on this page until you filter type. Lab-grown costs less at the same grades. Natural is the mined stone.