3 Carat Lab-Grown Diamond Rings
A bold center, priced as one ring. Every three carat lab-grown diamond ring on this page carries a 3-carat lab-grown center held high in its head, and one price covers stone and metal. Shape, metal and size are chosen per listing. A solitaire leads; pavé shoulders and a hidden halo add sparkle around it.
$2,115 $4,230
$2,385 $4,770
$2,385 $4,770
$2,385 $4,770
$2,385 $4,770
$2,385 $4,770
$2,385 $4,770
$1,955 $3,910
$1,955 $3,910
$1,955 $3,910
$1,955 $3,910
$1,955 $3,910
Showing 1–14 of 96
Shapes at three carats
Round, oval, cushion, radiant and heart sit on the full list here, while emerald, princess, pear and marquise appear on most designs. At this weight the cut shows plainly: a round throws scattered sparkle, a radiant gives crushed-ice brilliance in a rectangle, and an emerald cut shows long, mirror-like steps.
Settings for a larger stone
- Solitaire: the center carries the ring alone on a slim band.
- Pavé shoulders: small lab-grown diamonds add width of light without crowding the center.
- Hidden halo: stones under the head show in profile and make the setting look fuller.
Metal color next to a big center
Platinum and white gold make the setting almost disappear around a colorless stone. Yellow gold creates a warmer contrast that suits radiant and cushion shapes, and rose gold softens the look. Bands range from about 1.8 to 2.5 mm wide on this page, a slim base that lets the center dominate.
Care for a high-set three carat
A larger center gathers oil from skin quickly, and the stone loses fire when the pavilion is coated. A gentle scrub in lukewarm suds, twice a month, restores it. Remove it before lifting weights or handling cleaning products, and keep it apart from other jewelry so stones can't scratch one another.
3 Carat Lab-Grown Diamond Rings: Common Questions
How much is a 3 carat lab-grown diamond ring?
Here it starts at about $1,950, center included. Most designs come in between about $2,100 and $2,450 in the least costly metal. Lab-grown stones cost a fraction of mined ones at this size, so three carats stays within reach.
How much is a 3 carat princess cut diamond ring?
Rings here start from about $1,950 with the 3-carat lab-grown center included, and princess is offered on most designs. Choose the princess shape and your metal on the product page to see that ring's exact price; platinum and pavé raise it.
How much is a 3 carat emerald cut diamond?
Here an emerald-cut center comes set in a finished ring, from about $1,950 for the whole piece. Emerald cuts are offered on most designs. Its grading report, from IGI or GIA, comes along; each listing shows the exact total for your metal.
How much is a 3 carat pear shaped diamond ring?
A pear-shaped ring on this page starts from about $1,950 with the 3-carat lab-grown center set and priced in. Pear is available on most designs; platinum and pavé shoulders push it higher, and each listing shows the total.
