Two Australian 15ct gold brooches; bar brooch by Duggin, Shappere& Co. Set with a doublet and a seed pearl (one missing), and a starburst brooch by Dunklings set with seed pearls. Wt. 8.5g.
- 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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