18ct Yellow Gold Opal Ring with Doublet Stone

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18ct yellow gold opal set ring. Oval shaped doublet opal. Wt.6.3g

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Doublet and Triplet - A doublet and a triplet are both composite imitation stones, consisting of two or three joined layers. A triplet is made with the crown and base of genuine material, but with a centre layer, usually of glass, the object being to make the stone appear larger than it really is. A doublet consists of only two layers.

Opal doublets are quite common and consist of a thin layer of opal cemented to an opal matrix or black glass.

This item has been included into following indexes:

Yellow gold opal triplet set dress ring. Oval opal discoloured. Weight 5.2g

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Natural type 1 opal ring' 12.27 x 6.92 x 3.68 mm set in a handmade 18ct yellow gold ring 6.40 grams size 'J

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14ct yellow gold jade & topaz ring, gents or ladies carved black jade ring with a bezel set blue topaz approximately 13 mmx8 mm. Weight 11.8 grams

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18ct boulderopal ring. A gents tapered band in yellow gold with an oval boulderopal having flashes of green and red. Size S. weight 12grams

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