A Promise, Perfected

3 Carat Oval Solitaire Rings

Each 3 carat oval solitaire ring in this collection comes with a 3 carat lab-grown diamond center already set, and the price covers the finished ring. Choose a thin or rounded plain band, a pavé band, a cathedral setting over graduated pavé, or a hidden halo. Every 3 ct oval solitaire engagement ring comes in white, yellow or rose gold in 10K, 14K or 18K, or platinum.

1Choose a setting
Choose a Setting
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2Select a diamond
Select a Diamond
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3Complete the ring
Complete the Ring
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16 rings
16 rings
Conflict-Free
Ethically sourced diamonds
Lifetime Warranty
Free cleaning & resizing
Free Shipping
30-day returns
IGI / GIA Certified
Independently graded

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More oval and solitaire rings

Buying guide

The oval as a solitaire

An oval is an elongated brilliant with the sparkle of a round and a longer outline. Spread over that length, a 3 carat oval looks larger from above than a round of the same weight, and it makes the finger look slimmer. Some ovals show a darker bow-tie shape across the middle; a well-cut stone keeps it faint. As a solitaire the oval needs nothing else around it.

Band and setting choices

A thin plain band makes the center look larger by contrast, and a rounded plain band feels smooth and easy to wear every day. A pavé band lines the shoulders with lab-grown diamond accents for extra sparkle. The cathedral setting lifts the oval on arches that rise from a graduated pavé band. A hidden halo tucks a row of small lab-grown diamonds under the center, so the ring looks like a plain solitaire from above and sparkles from the side. The 3 carat figure is the center alone; accents add to the total.

Choosing the metal

Platinum and white gold keep the setting bright around a colorless center. Yellow and rose gold add warmth. 10K gold is the toughest and costs least, while 18K shows the richest color. Platinum is naturally white and the heaviest choice.

Made to order

Each ring is made for you in 10–15 days. Shipping is free on orders over $500, returns are accepted within 30 days, and one resize is free within 60 days of delivery.