Opal and diamond pendant, the opal triplet with blue, green,…
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Opal and diamond pendant, the opal triplet with blue, green, yellow and orange play of colour, measuring 300 x 19.80 mm, below a stepped bale set with baguette-cut diamonds, estimated total diamond weight 1.20 carats, stamped 750, weight 21.8gm, length 5.5 cm.
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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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