3 Carat Cushion Cut Lab-Grown Diamond Engagement Rings
A broad, glowing cushion that commands the hand. These 3 carat cushion cut lab-grown diamond engagement rings leave the workshop whole, the 3-carat center seated and its price bundled in. Your decisions: a bare band, accent-lined shoulders or a tucked-in halo, and then the metal, whether yellow, rose or white gold or platinum.
$2,385 $4,770
$1,955 $3,910
$1,955 $3,910
$1,955 $3,910
$2,705 $5,410
$2,115 $4,230
$2,115 $4,230
$2,115 $4,230
$3,645 $7,290
$2,585 $5,170
More to discover
Size and shape at three carats
A three-carat cushion is around 8.5 mm across in its squarer form, wide enough to cover most of the top of the finger. Broad facets give it a candlelit, chunky sparkle that suits the scale of a big stone.
How each ring holds the center
- Solitaire, plain band: lets a large cushion sit unadorned on smooth metal.
- Solitaire, pavé shoulders: accents flank the head and add a line of sparkle.
- Hidden halo, pavé band: extra brilliance tucked beneath and along the band.
Metal for a large stone
A bigger center needs secure prongs, and platinum holds them firmly while wearing very slowly. White gold matches the cool tone of a colorless stone at a lower price. Yellow and rose gold bring warmth that pairs well with the cushion's rounded, old-world outline. Bands stay slim, roughly 1.8 to 2.5 mm.
Wearing a three-carat ring
Three carats ride tall enough to snag knitwear; spin the stone toward your palm when hauling grocery bags. Clean it weekly with warm water and mild soap, brushing under the cushion where grime gathers. A yearly prong check is worth the few minutes.
3 Carat Cushion Cut Lab-Grown Diamond Engagement Rings: Common Questions
What is the price range for a 3 carat cushion cut diamond ring?
Rings on this page run from about $1,950, and most sit between about $2,100 and $2,250 in the lowest-priced metal, center stone counted in. Platinum or the hidden halo nudges that up. Grown cushions at this weight undercut earth-mined equivalents by a wide margin.
How much is a 3 carat elongated cushion cut diamond?
Around $1,950 buys a finished ring here with its 3-carat lab-grown diamond cushion seated. Weight and grade drive the price far more than the outline, so a longer cushion of the same weight costs about the same as a squarer one. Each product page shows the exact cushion outline and price for that ring.
