{"product_id":"precious-opal-215ct-welo-ethiopia-op253","title":"Precious opal 21.5ct – Welo, Ethiopia - OP253","description":"\u003cul\u003e\n\u003cli\u003eLocation: Welo, Ethiopia\u003c\/li\u003e\n\u003cli\u003eWeight: 4.3g\u003c\/li\u003e\n\u003cli\u003eDimensions: 2.4 x 2.4 x 0.9 cm\u003c\/li\u003e\n\u003cli\u003eDETAILED DESCRIPTION\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePrecious Welo Opals – Ethiopian Gemstones with Vivid Play-of-Color\nPrecious opals from the Welo region of Ethiopia are considered among the most beautiful and highest quality in the world. They are known for their unique play-of-color and high transparency, making them highly valued by jewelers and collectors alike. Most Welo opals are hydrophane, meaning they can absorb water. When they do, they can become more transparent and intensify their colors, but they are also more prone to cracking due to moisture variations.\nCharacteristics of Welo Opals\nThese opals display a vivid, rainbow-like play-of-color that changes with the viewing angle. This effect is caused by the diffraction of light on tiny silica spheres within the stone's structure. Their transparency ranges from clear to opaque, with clearer pieces enhancing the optical effects. The color range includes white, yellow, orange, red, green, blue, and violet tones. Their Mohs hardness is between 5.5 and 6.5, requiring careful handling to prevent damage.\nExtraction and Processing\nWelo opals are primarily mined in northern Ethiopia. The first discoveries date back to the 1990s, but global interest surged around 2008 when their quality and color range attracted worldwide attention. These opals soon rivaled traditional Australian opals due to their vibrant hues. Once extracted, the stones are cut, shaped, and polished to enhance their natural beauty.\nCare Instructions\nWelo opals are sensitive to temperature and humidity fluctuations, which can cause cracking or color fading. They must be protected from extreme conditions. For cleaning, use only a slightly damp cloth. Avoid chemicals or ultrasonic cleaners, which can damage the surface and internal structure. Store opals in a dry, safe place to prevent moisture or impact.\nMarket and Value\nWelo opals have quickly gained recognition for their affordability and stunning play-of-color. Prices vary based on quality, size, and transparency. The most exceptional stones, with vibrant color and high luster, often fetch premium prices in the international market among collectors and jewelers.\nPrecious Opal – Welo, Ethiopia\u003c\/p\u003e","brand":"PeltramMinerals","offers":[{"title":"Default Title","offer_id":58028703056197,"sku":"OP253","price":101.18,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0881\/1659\/2965\/files\/42542_photoroom-004-20250412-182447.jpg?v=1779385055","url":"https:\/\/moldavite.it\/en\/products\/precious-opal-215ct-welo-ethiopia-op253","provider":"Moldavite.it","version":"1.0","type":"link"}