Size guide

What a 0.5 carat diamond actually looks like on your hand.

Sits low and elegant. On an average finger it covers about a third of the finger width.

All 9 shapes at 0.5ct

Same carat weight. Very different footprint.

Carat is a weight, not a size. Because shapes distribute weight differently, a 0.5ct oval covers a lot more finger than a 0.5ct round.

Round

5.1 × 5.1 mm

Oval

6.5 × 4.8 mm

Cushion

5.1 × 5.1 mm

Emerald

5.8 × 4.3 mm

Pear

6.5 × 4.5 mm

Radiant

5.6 × 4.8 mm

Princess

4.6 × 4.6 mm

Marquise

8 × 4 mm

Moval

7.2 × 3.8 mm

0.5 carat — spec table

Shape	Length	Width	L/W ratio
Round	5.1 mm	5.1 mm	1.00
Oval	6.5 mm	4.8 mm	1.35
Cushion	5.1 mm	5.1 mm	1.00
Emerald	5.8 mm	4.3 mm	1.35
Pear	6.5 mm	4.5 mm	1.44
Radiant	5.6 mm	4.8 mm	1.17
Princess	4.6 mm	4.6 mm	1.00
Marquise	8 mm	4 mm	2.00
Moval	7.2 mm	3.8 mm	1.89

Price feel

Delicate, everyday-wearable.

Lab-grown

$400–$700

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

Natural

$1,500–$2,800

Higher upfront. Retains meaningful long-term value.

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

Other sizes