Royal Coster Diamonds Size	MM / INCH (Circumference)
	48 / 1.89	48 4½ I½ 8
	49 / 1.93	49 4¾ J¾ 9
	50 / 1.97	50 5½ K 10
	51 / 2.01	51 5¾ L 11
	52 / 2.05	52 6 L½ 12
	53 / 2.09	53 6¼ M½ 13
	54 / 2.13	54 6¾ N½ 14
	55 / 2.17	55 7¼ O 15
	56 / 2.20	56 7½ P 16
	57 / 2.24	57 8 P½ 17
	58 / 2.28	58 8¼ Q½ 18
	59 / 2.31	59 8¾ R 19
	60 / 2.36	60 9 S 20

Royal Coster
Diamonds Size

MM / INCH (Circumference)

48 / 1.89

49 / 1.93

50 / 1.97

51 / 2.01

52 / 2.05

53 / 2.09

54 / 2.13

55 / 2.17

56 / 2.20

57 / 2.24

58 / 2.28

59 / 2.31

60 / 2.36

Discover your ring size
1. Download the pdf document below, set it to 100% and print it on A4 paper. You can measure the 5cm line to check the accuracy of the printed dimensions. 2. Check which circle matches the size of your ring. Make sure that the black circle is only visible within the ring. 3. If the ring is in between two circles (sizes), we recommend the larger size.
1. Download the pdf document below, set it to 100% and print it on A4 paper. You can measure the 5cm line to check the accuracy of the printed dimensions. Then, cut out the Finger Sizer. 2. Cut the small gold line. Wrap the sizer around the largest part of your finger and make sure it is tightened. 3. Read your ring size from the sizer. If your ring size is in between two circles (sizes), we recommend the larger size.

Discover your ring size

Measure an existing ring

Measure your finger

1. Download the pdf document below, set it to 100% and print it on A4 paper. You can measure the 5cm line to check the accuracy of the printed dimensions.

2. Check which circle matches the size of your ring. Make sure that the black circle is only visible within the ring.

3. If the ring is in between two circles (sizes), we recommend the larger size.

1. Download the pdf document below, set it to 100% and print it on A4 paper. You can measure the 5cm line to check the accuracy of the printed dimensions. Then, cut out the Finger Sizer.

2. Cut the small gold line. Wrap the sizer around the largest part of your finger and make sure it is tightened.

3. Read your ring size from the sizer. If your ring size is in between two circles (sizes), we recommend the larger size.

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How to Wear the Engagement Ring and Wedding Band

Our 8 Diamond Guarantees

Our VIP Service

Care of diamond products

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Find Your Ring Size

Discover your ring size

Still not sure about your size?

Your Enquiry

Your Enquiry

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