18ct Gold Opal Doublet & Pearl Ring

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An 18ct gold opal doublet and pearl ring; centring an 11 x 8 mm opal of blue green colour surrounded by eight 5 mm round cultured pearls. Size M 0- N. Wt. 7.8g

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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.

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