Size guide

What a 1.5 carat diamond actually looks like on your hand.

You start feeling the weight. It reads as 'big ring' from across a table.

All 9 shapes at 1.5ct

Same carat weight. Very different footprint.

Carat is a weight, not a size. Because shapes distribute weight differently, a 1.5ct oval covers a lot more finger than a 1.5ct round.

Round

7.3 × 7.3 mm

Oval

9.5 × 6.8 mm

Cushion

7.3 × 7.3 mm

Emerald

9 × 6.5 mm

Pear

10.2 × 6.5 mm

Radiant

8.5 × 6.8 mm

Princess

6.8 × 6.8 mm

Marquise

11.8 × 5.9 mm

Moval

10.5 × 5.5 mm

1.5 carat — spec table

Shape	Length	Width	L/W ratio
Round	7.3 mm	7.3 mm	1.00
Oval	9.5 mm	6.8 mm	1.40
Cushion	7.3 mm	7.3 mm	1.00
Emerald	9 mm	6.5 mm	1.38
Pear	10.2 mm	6.5 mm	1.57
Radiant	8.5 mm	6.8 mm	1.25
Princess	6.8 mm	6.8 mm	1.00
Marquise	11.8 mm	5.9 mm	2.00
Moval	10.5 mm	5.5 mm	1.91

Price feel

Distinctly big — friends will notice at brunch.

Lab-grown

$1,800–$3,200

Same look, dramatically lower cost. Little to no resale value.

Natural

$9,000–$16,000

Higher upfront. Retains meaningful long-term value.

True-to-scale, in every shape, in seconds.

Other sizes