Free shipping and insured in Europe.

Lifetime free cleaning and polishing.

Free resizing service.

Your cart

Your cart is empty

Why not explore our new Luna Collection?

Find Your Ring Size

Royal Coster
Diamonds Size
Internal Diameter / Circumference (mm)​
14,01
14,33
14,65
14,97
15,21
15,61
15,92
16,24
16,56
16,88
17,20
17,52
17,83
18,15
18,47
18,79
19,11

How To Measure

The Hands-on Method​ Measure an Existing Ring
  • 1. Grab a tape measure, length of string or strip of paper.
  • 2. 2. Wrap one of these objects around your finger. Mark the place where the two end of the measuring object come together.
  • 3. When using string or paper grab a ruler. Lay it on a flat surface and measure to where the marked point is.
  • 4. Use the chart presented above to acquire the correct ring size.

1848

OMEGA

Exact time for life

The brand that is almost as old as Royal Coster Diamonds: OMEGA. OMEGA SA is a Swiss luxury watch manufacturer, based in Biel, Switzerland. Initially, the brand operated as the ‘La Generale Watch Co’, founded in 1848. In 1903, the name changed to OMEGA.

63 Results

Speedmaster '57 Co-Axial Manual 40.5Mm

OMEGA

€9.700,00

Unit price
per 

Seamaster Aqua Terra Automatic Co-Axial 38Mm

OMEGA

€7.500,00

Unit price
per 

Seamaster 300 Co-Axial Automatic 41Mm

OMEGA

€6.900,00

Unit price
per 

Constellation Automatic 29Mm

OMEGA

€11.000,00

Unit price
per 

Seamaster Aqua Terra Automatic 34Mm

OMEGA

€7.700,00

Unit price
per 

De Ville Tresor Quartz 36Mm

OMEGA

€5.600,00

Unit price
per 

Constellation Quartz 27Mm

OMEGA

€4.800,00

Unit price
per 

De Ville Prestige Automatic 32.7Mm

OMEGA

€5.400,00

Unit price
per 

Constellation Automatic 38Mm

OMEGA

€9.600,00

Unit price
per 

De Ville Prestige Automatic 36.8Mm

OMEGA

€5.900,00

Unit price
per 

Seamaster Diver 300M Automatic 42Mm

OMEGA

€5.700,00

Unit price
per 

De Vile Prestige Automatic 32.7Mm

OMEGA

€9.800,00

Unit price
per 

De Ville Prestige Automatic 39.5Mm

OMEGA

€7.500,00

Unit price
per 

De Ville Prestige Quartz 24.4Mm

OMEGA

€2.700,00

Unit price
per 

Seamaster 300M Co-Axial Master Chrono 42Mm

OMEGA

€6.900,00

Unit price
per 

Seamaster Diver Master Chronometer Co-Axial 42Mm

OMEGA

€6.100,00

Unit price
per 

OMEGA

Discover our other luxury watch brands

7 days a week

Get In Touch

Email, chat or call to consult us on your next purchase.

VISIT US

VIEW IN STORE

Visit your favorite items at our Flagship location in Amsterdam.