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Find Your Ring Size

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

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.
Resparkle service - Royal Coster Diamonds

Resparkle service

Do you have old jewellery lying around that you love but looks dull and lost its original sparkle and maybe lost a diamond or has other issues? Or do you have family jewellery that was passed along for generations but you don’t really know what it’s worth? Then let the most trusted diamond polishers examine your jewellery and tell you what you need to know. Get your jewellery examined, cleaned and brought back to its original glory

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