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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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Diamond Rings at Royal Coster Diamonds - Royal Coster Diamonds

Diamond Rings at Royal Coster Diamonds

Whether it is an engagement ring, a wedding ring or a friendship ring. A diamond ring is the symbol of eternal love. We have the largest collection of diamond rings in Europe with over 20,000 loose diamonds in stock.

60 Results

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Rainbow Single Pave Ring 18K Rose Gold - Royal Coster Diamonds
Rainbow Single Pave Ring 18K Rose Gold - Royal Coster Diamonds

Rainbow Mini Ring Brilliant Cut Diamond & Sapphire 18K Rose Gold

Royal Coster Diamonds

$1,650.01

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per 

Nikkie Cluster Ring Brilliant Cut Diamond 18K Yellow Gold

Royal Coster Diamonds

$753.65

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   MUST-HAVE  

Luna Floating Bezel Setting Ring 18K White Gold - Royal Coster Diamonds
Luna Floating Bezel Setting Ring 18K White Gold - Royal Coster Diamonds

Luna Bezel Solitaire Ring Brilliant Cut Diamond 18K Gold

Royal Coster Diamonds

from $490.55

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per 

Rainbow Maxi Ring Brilliant Cut Diamond & Sapphire 18K Rose Gold

Royal Coster Diamonds

$3,656.76

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per 

Rainbow Ring Brilliant Cut Diamond & Sapphire 18K Rose Gold

Royal Coster Diamonds

$2,854.06

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Rainbow Intertwined Ring Brilliant Cut Diamond & Sapphire 18K Rose Gold

Royal Coster Diamonds

$2,363.51

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Fabergé Treillage Brushed Diamond Set Ring 18K Gold

FABERGE

$3,129.65

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Miriam Floral Ring 18K Gold (small)

Royal Coster Diamonds

Regular price $1,239.73 from $1,054.22

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Signature C Solitaire Ring Royal 201 Cut Diamond 18K Gold

Royal Coster Diamonds

from $2,006.75

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per 

Signature C Embellished Solitaire Ring Royal 201 Cut Diamond 18K Gold

Royal Coster Diamonds

from $7,090.55

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Miriam Floral Ring 18K Gold (big)

Royal Coster Diamonds

Regular price $1,783.78 from $1,516.22

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Luna Raindrop Mini Ring Brilliant Cut Diamond 18K Gold

Royal Coster Diamonds

$1,471.63

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Luna Raindrop Ring Brilliant Cut Diamond 18K Gold

Royal Coster Diamonds

$1,694.60

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per