A Promise, Perfected

4 Carat Gold Rings

Each 4 carat gold ring here comes with a 4 carat lab-grown diamond center already set, and the price covers the stone. Choose white, yellow or rose gold in 10K, 14K or 18K, then one of ten shapes from round to heart. Styles include plain and pavé solitaires, a halo, a hidden halo, a three stone ring and side-accent rings.

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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300 rings
300 rings
Conflict-Free
Ethically sourced diamonds
Lifetime Warranty
Free cleaning & resizing
Free Shipping
30-day returns
IGI / GIA Certified
Independently graded

Buying guide

Picking the gold

The karat sets how much pure gold the ring holds. 18K is richest in color and a little softer. 14K balances color and toughness and is the most common choice for a 4 carat gold engagement ring. 10K is the hardest and the most budget-friendly. White gold is plated with rhodium for its bright finish; yellow and rose gold keep their color on their own.

A 4 carat center in each shape

A 4 carat round lab-grown diamond is roughly 10 mm across. Oval, pear, marquise and emerald shapes spread the same weight along the finger and look longer. Cushion and radiant are softer squares with lots of sparkle. Princess and Asscher are crisp squares, and heart is the boldest choice at this size.

Styles at this size

A big center needs a band that can support it. Solitaires on a plain or rounded band keep things simple. Pavé bands add small lab-grown diamond accents along the shank. A halo frames the center and a hidden halo sits beneath it. The three stone ring and the rings with pear or marquise side accents give a wider, fuller look.

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.

4 Carat Gold Rings FAQs

How much is a 4 carat gold diamond ring worth?

Lab-grown diamond rings in this collection start from about $2,400 with the 4 carat lab-grown diamond center set, in the lowest gold option, and most sit between about $2,700 and $2,850. Higher karats and fuller styles cost more. As for worth after purchase, lab-grown diamonds have little resale value, so treat the ring as something to wear rather than an investment. The gold itself keeps its metal value.