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Why not explore our new Luna Collection?

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 collection Rings - Royal Coster Diamonds

Signature collection Rings

15 Results

Rainbow Double Pave Ring 18K Rose Gold

Royal Coster Diamonds

€3.200,00

Unit price
per 

Rainbow Twist Pave Ring 18K Rose Gold

Royal Coster Diamonds

€2.650,00

Unit price
per 

Rainbow Triple Pave Ring 18K Rose Gold

Royal Coster Diamonds

€4.100,00

Unit price
per 

Royal 201 Signature C 18K Gold Embellished Ring

Royal Coster Diamonds

from €8.950,00

Unit price
per 

Royal 201 Signature C 18K Gold Solitaire Ring

Royal Coster Diamonds

from €2.250,00

Unit price
per 

Luna Floating Bezel Ring Brilliant Cut Diamond 18K Gold

Royal Coster Diamonds

from €550,00

Unit price
per 

Nikkie Solitaire Ring 18K Yellow Gold

Royal Coster Diamonds

€845,00

Unit price
per 

Nikkie Solitaire Ring 18K White Gold

Royal Coster Diamonds

€845,00

Unit price
per 

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

Miriam Floral Ring 18K Gold (small)

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 Floral Ring 18K Gold (big)

Royal Coster Diamonds

Regular price €1.900,00 from €1.700,00

Unit price
per 

Luna Raindrop Ring Single 18K Gold

Royal Coster Diamonds

€1.650,00

Unit price
per 

Rainbow Single Pave Ring 18K Rose Gold

Royal Coster Diamonds

€1.850,00

Unit price
per 

Luna Raindrop Cluster Ring 18K Gold

Royal Coster Diamonds

€1.900,00

Unit price
per 

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

Willeke Half Eternity Ring 18K Gold

Royal Coster Diamonds

Regular price €1.300,00 from €1.105,00

Unit price
per 

Luna Raindrop Ring Triple 18K Gold

Royal Coster Diamonds

€2.350,00

Unit price
per