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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.
Signature collection Rings - Royal Coster Diamonds

Signature collection Rings

16 Results

Rainbow Single Pave Ring 18K Rose Gold

Royal Coster Diamonds

€1.850,00

Unit price
per 

Rainbow Double Pave Ring 18K Rose Gold

Royal Coster Diamonds

€3.200,00

Unit price
per 

Rainbow Twist Pave Ring 18K Rose Gold

Royal Coster Diamonds

€2.650,00

Unit price
per 

Rainbow Triple Pave Ring 18K Rose Gold

Royal Coster Diamonds

€4.100,00

Unit price
per 

Royal 201 Signature C 18K Gold Embellished Ring

Royal Coster Diamonds

from €8.950,00

Unit price
per 

Royal 201 Signature C 18K Gold Solitaire Ring

Royal Coster Diamonds

from €2.250,00

Unit price
per 

Luna Enclosed Bezel Setting Ring 18K Gold

Royal Coster Diamonds

from €1.750,00

Unit price
per 

Luna Embraced Bezel Setting (Bold) Ring 18K Gold

Royal Coster Diamonds

€17.800,00

Unit price
per 

Luna Embraced Bezel Setting (Refined) 18K Gold

Royal Coster Diamonds

from €740,00

Unit price
per 

Luna Floating Bezel Setting Ring 18K Gold

Royal Coster Diamonds

from €850,00

Unit price
per 

Luna Lifted Bezel Setting 18K Gold

Royal Coster Diamonds

from €410,00

Unit price
per 

Nikkie Yellow Gold Solitaire Ring

Royal Coster Diamonds

€845,00

Unit price
per 

Nikkie White Gold Solitaire Ring

Royal Coster Diamonds

€845,00

Unit price
per 

Miriam 18K Gold Floral Ring (big) - Royal Coster Diamonds
Miriam 18K Gold Floral Ring (big) - Royal Coster Diamonds
Sale

Miriam 18K Gold Floral Ring (big)

Royal Coster Diamonds

Regular price €950,00 from €808,00

Unit price
per 

Willeke 18K Gold Half Eternity Ring - Royal Coster Diamonds
Willeke 18K Gold Half Eternity Ring - Royal Coster Diamonds
Sale

Willeke 18K Gold Half Eternity Ring

Royal Coster Diamonds

Regular price €1.300,00 from €1.105,00

Unit price
per 

Miriam 18K Gold Floral Ring (small) - Royal Coster Diamonds
Miriam 18K Gold Floral Ring (small) - Royal Coster Diamonds
Sale

Miriam 18K Gold Floral Ring (small)

Royal Coster Diamonds

Regular price €1.900,00 from €1.615,00

Unit price
per