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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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Frederique Constant

23 Results

Classics Automatic 27.5Mm

Frederique Constant

€ 1.195

Unit price
per 

Classics Automatic 40Mm

Frederique Constant

€ 1.125

Unit price
per 

Classics Business Timer Quartz 40mm

Frederique Constant

€ 895

Unit price
per 

Classics Carrée Quartz 23X21Mm Mother of Pearl Dial

Frederique Constant

€ 2.125

Unit price
per 

Classics Carrée Quartz 23X21Mm Silver dial - Royal Coster Diamonds
Sale

Classics Carrée Quartz 23X21Mm Silver dial

Frederique Constant

Regular price € 950 € 760

Unit price
per 

Classics Heart Beat Moonphase Automatic 40mm

Frederique Constant

€ 1.890

Unit price
per 

Classics Index Automatic 40Mm

Frederique Constant

€ 895

Unit price
per 

Classics Index Automatic 40mm

Frederique Constant

€ 1.095

Unit price
per 

Classics Index Automatic 40mm

Frederique Constant

€ 895

Unit price
per 

Classics Quartz 40Mm

Frederique Constant

€ 625

Unit price
per 

Classics Quartz Chrono 40mm

Frederique Constant

€ 950

Unit price
per 

Double Heart Beat Automatic 34Mm - Royal Coster Diamonds
Sale

Double Heart Beat Automatic 34Mm

Frederique Constant

Regular price € 3.295 € 2.636

Unit price
per 

Heart Beat Diamond Automatic 34Mm - Royal Coster Diamonds
Sale

Heart Beat Diamond Automatic 34Mm

Frederique Constant

Regular price € 3.890 € 3.112

Unit price
per 

Heart Beat Automatic 36Mm - Royal Coster Diamonds
Heart Beat Automatic 36mm - Royal Coster Diamonds
Sale

Heart Beat Automatic 36Mm

Frederique Constant

Regular price € 1.595 € 1.276

Unit price
per 

Highlife Automatic Cosc 41Mm

Frederique Constant

€ 1.895

Unit price
per 

Highlife Heart Beat 41Mm

Frederique Constant

€ 1.950

Unit price
per 

Slimline Classic Quartz 37Mm - Royal Coster Diamonds
Sale

Slimline Classic Quartz 37Mm

Frederique Constant

Regular price € 750 € 600

Unit price
per 

Slimline Moonphase 30Mm - Royal Coster Diamonds
Sale

Slimline Moonphase 30Mm

Frederique Constant

Regular price € 725 € 580

Unit price
per 

Slimline Quartz 28.6Mm - Royal Coster Diamonds
Slimline Quartz 28.6mm - Royal Coster Diamonds
Sale

Slimline Quartz 28.6Mm

Frederique Constant

Regular price € 625 € 500

Unit price
per 

Slimline Quartz 38.4Mm Silver Dial - Royal Coster Diamonds
Sale

Slimline Quartz 38.4Mm Silver Dial

Frederique Constant

Regular price € 750 € 600

Unit price
per 

Slimline Quartz 38.4Mm Silver Dial

Frederique Constant

€ 695

Unit price
per 

Slimline Quartz 39Mm

Frederique Constant

€ 750

Unit price
per 

Slimline Small Seconds Quartz 38.4Mm

Frederique Constant

€ 895

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.