This lot consists of 6 small opal doublets of different colours and sizes. The largest, a grey one, is actually quite a reasonable size: 11mm x 9mm. The round blue one has a diameter of 7mm, whereas the smallest doublet, the round green one, has diameter of only 4mm. The drop-shaped one is 9mm x 5mm, and the two oval ones are 8mm x5mm and 7mm, x 5mm respectively. All of them display good, strong colours and are in excellent condition.