Press

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.

Get in Touch

Our press team loves working with journalists around the world to share compelling, unique stories. If you’re a member of the media and would like to talk, please get in touch with the appropriate team or send an email to press@royalcoster.com.

Only media inquiries will receive a response.

Royal Coster Diamonds

Paulus Potterstraat 2

1071 CZ Amsterdam, The Netherlands

Open from Monday - Sunday: 09:00 - 17:00

Phone Number: (+31) 20 305 5555

ROYAL COSTER DIAMONDS

AT THE HEART OF IT. SINCE 1840.

The world’s oldest and most trusted diamond factory has a rich and compelling history. Royal Coster Diamonds is around for a long time, dating back all the way to at least 1840.

Facts & Figures ☷ (.docx)