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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.

Coster Classics Collection

The Royal Coster Classics is one of the most favourite collections. Sparkling diamonds in combination with a subtle look creates the bestselling classic. Whether you want smaller stones at lower purity levels, or larger diamonds with excellent color and clarity ratings, there is a perfect jewel out here for you. 

7 Results

Miriam 18K Gold Floral Earrings - Royal Coster Diamonds
Miriam 18K Gold Floral Earrings - Royal Coster Diamonds
Sale

Miriam 18K Gold Floral Earrings

Royal Coster Diamonds

Regular price €1.150,00 from €978,00

Unit price
per 

Miriam 18K Gold Earrings - Royal Coster Diamonds
Miriam 18K Gold Earrings - Royal Coster Diamonds
Sale

Miriam 18K Gold Earrings

Royal Coster Diamonds

Regular price €2.500,00 from €2.125,00

Unit price
per 

Miriam 18K Gold Floral Pendant - Royal Coster Diamonds
Miriam 18K Gold Floral Pendant - Royal Coster Diamonds
Sale

Miriam 18K Gold Floral Pendant

Royal Coster Diamonds

Regular price €580,00 from €493,00

Unit price
per 

Miriam 18K Gold Floral Pendant - Royal Coster Diamonds
Miriam 18K Gold Floral Pendant - Royal Coster Diamonds
Sale

Miriam 18K Gold Floral Pendant

Royal Coster Diamonds

Regular price €1.350,00 from €1.148,00

Unit price
per 

Willeke 18K Gold Half Eternity Ring - Royal Coster Diamonds
Willeke 18K Gold Half Eternity Ring - Royal Coster Diamonds
Sale

Willeke 18K Gold Half Eternity Ring

Royal Coster Diamonds

Regular price €1.300,00 from €1.105,00

Unit price
per 

Miriam 18K Gold Floral Ring (big) - Royal Coster Diamonds
Miriam 18K Gold Floral Ring (big) - Royal Coster Diamonds
Sale

Miriam 18K Gold Floral Ring (big)

Royal Coster Diamonds

Regular price €950,00 from €808,00

Unit price
per 

Miriam 18K Gold Floral Ring (small) - Royal Coster Diamonds
Miriam 18K Gold Floral Ring (small) - Royal Coster Diamonds
Sale

Miriam 18K Gold Floral Ring (small)

Royal Coster Diamonds

Regular price €1.900,00 from €1.615,00

Unit price
per