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DIAMOND WEIGHT CALCULATOR

Looking to calculate the carat weight of your diamond? Our online diamond carat calculator helps you determine the weight of your stone.

Diamond Carat Size Chart

Download our Free Diamond Carat Size Chart to see how diamonds of different shapes and different carat weights look from the top down. Print the chart to compare your diamond and see what carat weight it is.

Our Selling Guides

Sell luxury goods like an expert

Read our guides to learn more about selling luxury goods. Arm yourself with everything you need to know before you start selling.

Our Offices

USA

535 5th Avenue, 11th Floor,
New York,
New York 10017

UK

Studio 212/213B,
The Big Peg 120 Vyse Street,
Birmingham, B18 6NF

Hong Kong

6 Duddell Street,
Suite 604
Central, Hong Kong

Japan

N&E BLD., 5th Floor,
1-12-4 Ginza, Chuo-ku, Tokyo 104-0061

535 5th Avenue, 11th Floor,
New York,
New York 10017

Studio 212/213B,
The Big Peg 120 Vyse Street,
Birmingham, B18 6NF

6 Duddell Street,
Suite 604
Central, Hong Kong

N&E BLD., 5th Floor,
1-12-4 Ginza, Chuo-ku, Tokyo 104-0061