Black opals are among the most sought-after and expensive opals in the world. This beautiful lot of 10 faceted pieces features a stunning play of color. Natural Solid Black Opal Polished - Faceted Ethiopian, Welo Multicolor 10 Pieces - 10 x 6 x 4 mm about 12.21 cts - 2.44 grams Smoked The properties of Opal bring joy and a sense of happiness, increase the joy of living, stimulate artistic creativity and imagination. It is believed that certain gemstones and minerals have beneficial health and spiritual properties. Catawiki cannot guarantee or be held liable for these suggested attributes which have no scientific evidence shipped in an elegant box with glass the piece for sale is what you see in photos! Lamp light condition! please be careful with the description and measures COMBINED SHIPPING (if you buy more items in the same auction you only pay 1 shipment) Standard shipping ( 2-7 days for Italy ) ( 10-20 days for Europe ) ( 15-40 days for rest of the world ) if you want fast shipping, please contact me immediately after the auction