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Princess diamonds, lab-grown and natural

The princess gives you a round’s fire in a crisp, modern square. It looks a little smaller per carat than other shapes, and its four sharp corners need protecting.

Every princess we sell is certified by GIA, IGI or HRD and has a 360° video, so you can see its sparkle and its corners before you buy.

See princess diamonds in stock Compare with other shapes

01 · In stock now

Princess diamonds you can buy today

Picked from stock by score, 1 to 3 carats, each with a 360° video. Prices in CAD, duties included.

See all 23,794 princess diamonds, 1–3 ct

02 · Sizes by carat

Princess diamond sizes, in millimetres

Typical face-up size, next to a round of the same weight. Real stones vary with how deep they are cut, so always check the measurements on the certificate.

Carat Princess, size Round, diameter
0.5 4.2–4.4 mm 5.1–5.2 mm See in stock
1 5.3–5.6 mm 6.4–6.5 mm See in stock
1.5 6.1–6.4 mm 7.3–7.4 mm See in stock
2 6.7–7.1 mm 8.1–8.2 mm See in stock
3 7.6–8.1 mm 9.2–9.4 mm See in stock
4 8.4–8.9 mm 10.2–10.3 mm See in stock
5 9.1–9.6 mm 10.9–11.1 mm See in stock
  • 0.5 ct
  • 1 ct
  • 1.5 ct
  • 2 ct
  • 3 ct
  • Round 1 ct

Drawn at actual size on most computer screens at 100% zoom. To compare with any other shape, or see it on your ring size: open the shape comparer.

Our advice

“A princess gives you a round’s fire in a clean square. It looks smaller per carat, so compare millimetres, and always protect its four corners.”

Jouwell, Montreal

03 · Questions

Princess diamond questions

What size is a 1 carat princess diamond?

About 5.3 to 5.6 mm on each side. It faces up a little smaller than a round of the same weight, so compare millimetres.

Are princess diamonds fragile?

Their four sharp corners can chip. Prongs that cover the corners, or a bezel, protect them.

Princess or square radiant?

Both are square brilliants. The princess has sharp corners; the square radiant has cut corners, which makes it easier to wear every day.