Black Ethiopian Smoky Opals are the Queen's gem of gems! Be a connoisseur of nature's rich and luxurious artistry. Smoked Black Opals are natural Ethiopian Opals. They are blackened by a process where natural smoke is infused into the porous Opal stone, darkening it while enhancing the playful reflective colors within. Adjustable up to 8" Wholesale Sterling Silver Gemstone Bracelet