I thought I should show you this Tahitian (should I say drop or baroque?)I bought via ebay, Pearl Society. This was a test and I didn't expect anything, but ended up quite pleased with it. It's about 13mm x 11mm, color: dominant green with copper and light grey and aubergine overtones. Surface: clean and smooth with one 'circle' in the top half. The luster is quite nice, metallic like. Forgive me I took this picture it was end of day and with my iphone. Will try to post better ones tomorrow! Hummm, now what to do with it??? Mabe a pendant?