Free Guided Diamond Factory Tour

Royal Coster Diamonds Size	Internal Diameter / Circumference (mm)
	14,01
	14,33
	14,65
	14,97
	15,21
	15,61
	15,92
	16,24
	16,56
	16,88
	17,20
	17,52
	17,83
	18,15
	18,47
	18,79
	19,11

Royal Coster
Diamonds Size

Internal Diameter / Circumference (mm)

14,01

14,33

14,65

14,97

15,21

15,61

15,92

16,24

16,56

16,88

17,20

17,52

17,83

18,15

18,47

18,79

19,11

How To Measure
1. Grab a tape measure, length of string or strip of paper. 2. 2. Wrap one of these objects around your finger. Mark the place where the two end of the measuring object come together. 3. When using string or paper grab a ruler. Lay it on a flat surface and measure to where the marked point is. 4. Use the chart presented above to acquire the correct ring size.
1. Pick a ring that fits you or wear regularly and fits comfortably around your finger. 2. Measure the interior diameter in millimeters (mm). 3. Use the chart presented above to acquire the correct ring size.

How To Measure

The Hands-on Method

Measure an Existing Ring

1. Grab a tape measure, length of string or strip of paper.
2. 2. Wrap one of these objects around your finger. Mark the place where the two end of the measuring object come together.
3. When using string or paper grab a ruler. Lay it on a flat surface and measure to where the marked point is.
4. Use the chart presented above to acquire the correct ring size.

1. Pick a ring that fits you or wear regularly and fits comfortably around your finger.
2. Measure the interior diameter in millimeters (mm).
3. Use the chart presented above to acquire the correct ring size.

Visit the oldest diamond polishing factory in the world and enjoy a free guided tour in your own language. Watch the craftsmen and women cut and polish rough stones into beautiful diamonds. During the tour your experienced guide will tell you about the origins of diamonds, the 4C's of diamond valuation, the origin of diamonds and much more.
In a private room you will see part of the largest collection of unset diamonds and you will also see the Royal 201 diamond, This is Royal Coster's own patented diamond and known to be the best diamond in the world.

See the Koh-I-Noor, in the British Crown Jewels and some more of spectacular diamond artifacts.
Enjoy the jewelry collection at Royal Coster Diamonds!