Order before Feb. 10th and get it before Valentine's.

Free shipping and insured in Europe.

Free insured shipping in Europe.

Lifetime free cleaning and polishing.

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.
Rings - 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.

22 Results

Luna Embraced Bezel Setting (Refined) 18K Gold

Royal Coster Diamonds

from €740,00

Unit price
per 

Luna Embraced Bezel Setting (Bold) Ring 18K Gold

Royal Coster Diamonds

€17.800,00

Unit price
per 

Luna Enclosed Bezel Setting Ring 18K Gold

Royal Coster Diamonds

from €1.750,00

Unit price
per 

Rainbow Single Pave Ring 18K Rose Gold

Royal Coster Diamonds

€1.850,00

Unit price
per 

Nikkie Yellow Gold Solitaire Ring

Royal Coster Diamonds

€845,00

Unit price
per 

Luna Floating Bezel Setting Ring 18K Gold

Royal Coster Diamonds

from €850,00

Unit price
per 

Rainbow Triple Pave Ring 18K Rose Gold

Royal Coster Diamonds

€4.100,00

Unit price
per 

Luna Lifted Bezel Setting 18K Gold

Royal Coster Diamonds

from €410,00

Unit price
per 

Rainbow Double Pave Ring 18K Rose Gold

Royal Coster Diamonds

€3.200,00

Unit price
per 

Nikkie White Gold Solitaire Ring

Royal Coster Diamonds

€845,00

Unit price
per 

Rainbow Twist Pave Ring 18K Rose Gold

Royal Coster Diamonds

€2.650,00

Unit price
per 

14K Yellow And White Gold Fjory Ring Diamonds

FJORY

€1.869,00

Unit price
per 

Colors Of Love White Gold Blue Sapphire Fluted Ring

FABERGE

€5.799,00

Unit price
per 

Fabergé Colours Of Love Rose Gold Ruby Fluted Ring

FABERGE

€7.499,00

Unit price
per 

Fabergé Colours Of Love Yellow Gold Emerald Fluted Ring

FABERGE

€8.099,00

Unit price
per