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Find Your Ring Size

Royal Coster
Diamonds Size
MM / INCH (Circumference)
48 / 1.89 48 4½ 8
49 / 1.93 49 9
50 / 1.97 50 K 10
51 / 2.01 51 L 11
52 / 2.05 52 6 12
53 / 2.09 53 13
54 / 2.13 54 14
55 / 2.17 55 O 15
56 / 2.20 56 P 16
57 / 2.24 57 8 17
58 / 2.28 58 18
59 / 2.31 59 R 19
60 / 2.36 60 9 S 20

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Signature Rings

The Signature rings collection brings together the best rings from all of our signature collections.

72 Results

18K Gold 0.30 Carat Half Eternity Diamond Wedding Ring

Royal Coster Diamonds

€ 1.600

Unit price
per 

18K Gold Diamond Inserts Brushed Wedding Ring

Royal Coster Diamonds

€ 1.600

Unit price
per 

Canals Singel Ring

Royal Coster Diamonds

€ 1.590

Unit price
per 

Canals Singel Ring

Royal Coster Diamonds

€ 3.190

Unit price
per 

Canals Singel Ring

Royal Coster Diamonds

€ 2.490

Unit price
per 

Canals Singel Ring

Royal Coster Diamonds

€ 2.490

Unit price
per 

Canals Singel Ring

Royal Coster Diamonds

€ 990

Unit price
per 

Canals Singel Ring

Royal Coster Diamonds

€ 990

Unit price
per 

Signature C Embellished Ring

Royal Coster Diamonds

from € 8.950

Unit price
per 

Signature C Solitaire Ring

Royal Coster Diamonds

from € 2.250

Unit price
per 

Tennis Game Ring

Royal Coster Diamonds

from € 1.750

Unit price
per 

Tennis Match Ring

Royal Coster Diamonds

from € 1.850

Unit price
per 

Canals Singel Ring

Royal Coster Diamonds

€ 1.590

Unit price
per 

Canals Spiegel Ring

Royal Coster Diamonds

€ 1.990

Unit price
per 

Canals Spiegel Ring

Royal Coster Diamonds

€ 1.990

Unit price
per 

Luna Full Moon Ring

Royal Coster Diamonds

from € 550

Unit price
per 

Get your dream ring

Whether you’ve set your eyes on an a wedding ring or a rainbow ring, we have what you’re looking for. We have many different ring settings. We can make one exactly how you want it and with the kind of diamonds you want. Contact us to find your dream ring.