Opal Triplet Ring - Full Colour Range - 9ct Gold
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9ct yellow gold Australian opal triplet ring, fifteen 12 mm triplet showing full colour range from red to violet. Milgrain set to 9ct band. Size R/9, total weight approx. 4.23g. Provenance: Deceased Estate, Sydney.
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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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