A fine gold chain carries a single bar of raw Ethiopian opal beads at its centre. A minimalist design. Perfect for everyday elegance or special occasions. …………………………………. Details: Available in 14k Gold Filled or Sterling Silver Opals measure 3mm - 4mm Natural Ethiopian Opals About Your Opals: Many Ethiopian opals are hydrophane opals, meaning they can absorb water and other liquids. When this happens, the stone may temporarily become more transparent or appear to lose some of its colorful flashes. This change is usually temporary. As the opal dries naturally, its original appearance typically returns. For this reason, we recommend removing your Ethiopian opal jewelry before: Swimming Bathing or showering Washing dishes Using hot tubs or saunas Applying lotions, perfumes, or household cleaning products