A Promise, Perfected

5 Carat Round Solitaire Rings

A 5 carat round solitaire lab-grown diamond ring from this collection comes with its round brilliant lab-grown diamond center set and included in the price. Choose the band, from rounded or thin plain metal to pave, a hidden halo or a cathedral setting, and pick platinum or white, yellow or rose gold. The result is a large, classic center on a simple ring.

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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4 rings
4 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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Buying guide

The round brilliant at 5 carats

The round brilliant is cut to return as much light as possible, which is why it remains the most popular shape. A 5 carat round has a wide, bright face, and its even outline looks balanced on any hand. With no corners, it is also the easiest shape to protect in daily wear.

Ways to set it

Rounded plain bands are comfortable and classic. A thin plain band makes the large center look even bigger. Pave bands carry a line of small lab-grown diamond accents, and the hidden halo adds a ring of them under the center, seen in profile. The cathedral ring lifts the center on arches of metal over a graduated pave band. Accents are extra weight; the 5 carat figure is the round center.

Metals and price

Every design comes in platinum and in 10K, 14K or 18K white, yellow or rose gold. Platinum is heavy and naturally white. Gold costs less and offers three colors. Prices include the 5 carat lab-grown diamond center and start from about $3,500 in the lowest-priced metal, while most rings start between about $3,800 and $3,900.

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.