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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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Celebrate with royal coster diamonds

These Collections are designed for those who value the finer things in life. Each piece in these collections is a testament to our relentless pursuit of perfection, crafted with unwavering passion and the expertise of generations. Our diamonds, handpicked and expertly cut, reflect not just light, but the very essence of beauty and grace.

So, let's celebrate the joy of giving with Royal Coster Diamonds. Give a gift that shines, a gift that lasts, a gift that speaks volumes about your discerning taste and heartfelt sentiments. After all, when you choose Royal Coster, you're not just giving a gift. You're creating a precious memory.

Gifting Collection

The perfect gift for every special occasion.

Birthstone Collection

Each piece of jewelry contains a gemstone that represents your favorite month and moment.

Montblanc Collection

Introducing the Montblanc Collection, a beautiful range of accessories that combines style, sophistication and functionality.

Graduation Collection

Such an important milestone in life asks for a special gift.