The mosaics are composed with good quality natural Australian opal, these are placed on a Natural black Jade base and on the surface a transparent dome, thus creating a beautiful triplet! For jewelers and collectors! Top Gem Natural Opal Cabochon Mosaic - Triplet Natural black Jade base Multicolors 2 Pieces 9 x 7 x 3 mm about 2.5 cts - 0.5 grams Untreated Photos with lamp light Please read the lot description and measurements. Standard shipping ( 2-7 days for Italy ) ( 10-20 days for Europe ) ( 15-40 days for rest of the world )