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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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201 Results

Captain Cook High-Tech Ceramic Diver 43Mm

RADO

$3,658.85

Unit price
per 

Cosmo Automatic 40Mm Yellow Dial - Royal Coster Diamonds
Cosmo Automatic 40Mm Yellow Dial - Royal Coster Diamonds
Sale

Cosmo Automatic 40Mm Yellow Dial

TITONI

Regular price $887.27 $709.81

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per 

Cosmo King Automatic 40Mm Yellow Dial - Royal Coster Diamonds
Sale

Cosmo King Automatic 40Mm Yellow Dial

TITONI

Regular price $960.45 $768.35

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per 

Longines Mini Dolcevita Quartz 16mm Silver Dial

Longines

$1,600.75

Unit price
per 

Longines Mini Dolcevita Quartz 16mm Green dial

Longines

$3,704.59

Unit price
per 

Longines Mini Dolcevita quartz 16mm Blue dial

Longines

$3,704.59

Unit price
per 

Master Collection Automatic 38.5mm White Dial

Longines

$2,149.58

Unit price
per 

Formula 1 x Red Bull Racing Quartz Chrono 43mm - Royal Coster Diamonds
Formula 1 x Red Bull Racing Quartz Chrono 43mm - Royal Coster Diamonds
Sale

Formula 1 x Red Bull Racing Quartz Chrono 43mm

Tag Heuer

Regular price $1,966.63 $1,573.31

Unit price
per 

Conquest Classic Quartz 34Mm Sunray silver Dial

LONGINES

$1,189.13

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per 

Hyperchrome Chronograph 44.9Mm Blue Dial

RADO

$1,646.48

Unit price
per 

Hyperchrome Chronograph 44.9 Mm Green Dial

RADO

$1,646.48

Unit price
per 

Ceramica Quartz 30 X 41.7Mm Black Dial - Royal Coster Diamonds
Ceramica Quartz 30 X 41.7Mm Black Dial - Royal Coster Diamonds
Sale

Ceramica Quartz 30 X 41.7Mm Black Dial

Rado

Regular price $2,286.79 $1,829.42

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per 

Primaluna 30.5Mm Blue Dial

LONGINES

$1,326.34

Unit price
per 

True Square Automatic Open Heart 38Mm

RADO

$2,652.66

Unit price
per 

Florence Classic Diamonds 30Mm Black Dial

RADO

$1,143.39

Unit price
per 

True Thinline Diamonds Quartz 30Mm

RADO

$2,359.96

Unit price
per 

Find your Signature ring

The Signature rings collection brings together the best rings from all of our signature collections. Whether it’s the bright colors of the Rainbow collection, the stylish Nikkie collection, the famous Royal 201 Signature C collection, the timeless Coster Classic collection, or the romantic rings from our Engagement and Wedding collection, every ring is chosen for its stunning look and fine quality.

This special collection is the very best we have. It includes many different designs, all made with the finest care and luxury in mind. Skilled craftsmen make each ring by hand, picking diamonds that shine and sparkle brightly. These signature rings show the top quality that we offer more than 180 years.

The Signature rings collection is perfect for someone who wants a ring that stands out. With everything from rings with many colors to simple and elegant designs, this collection lets you find the perfect ring that fits your own style and tells your personal story.

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 rings.