United States
United Kingdom
JapanDIAMOND 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
New York,
New York 10017
Studio 212/213B,
The Big Peg 120 Vyse Street,
Birmingham, B18 6NF
The Big Peg 120 Vyse Street,
Birmingham, B18 6NF
6 Duddell Street,
Suite 604
Central, Hong Kong
Suite 604
Central, Hong Kong
N&E BLD., 5th Floor,
1-12-4 Ginza, Chuo-ku, Tokyo 104-0061
1-12-4 Ginza, Chuo-ku, Tokyo 104-0061