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Find Your Ring Size

Royal Coster
Diamonds Size
MM / INCH (Circumference)
48 / 1.89 48 4½ 8
49 / 1.93 49 9
50 / 1.97 50 K 10
51 / 2.01 51 L 11
52 / 2.05 52 6 12
53 / 2.09 53 13
54 / 2.13 54 14
55 / 2.17 55 O 15
56 / 2.20 56 P 16
57 / 2.24 57 8 17
58 / 2.28 58 18
59 / 2.31 59 R 19
60 / 2.36 60 9 S 20

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At Royal Coster Diamonds we strive to provide you with the best possible service. If you have any questions regarding diamond jewelry or if you want to contact a diamond consultant, you can reach us via the following:

Phone: +31 020 305 5555
Email: support@costerdiamonds.com
WhatsApp: +31629705658

Monday to Friday from 09:00 - 17:00.

7 days a week

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