Australian multi color 4.72cts Opal Doublet & Herkimer Diamond Ring Shape: Rough form & Oval Identification: Natural Opal - Herkimer diamond Metal: Sterling Silver 925 Measures: 28 × 20 × 22 mm Ring size: 8.5 ( USA ) Grams: 4.29 g. The ring will be shipped with the gift box depicted in the photos Opal Healing Properties. Gleaming with healing properties, the Opal stone is full of high vibrational energy, amplification powers, and a perfect sense of balance. It not only kickstarts your creative heart but can also bring renewed hope, good karma, bright balance, and regulation. Copy and paste these link to watch the video of this Australian Opal Doublet & Herkimer Ring on YouTube https://www.youtube.com/watch?v=iLHe92Ur0lg Registered shipping with tracking Note that: The photos are taken in cold light, I don't use any filters, but sometimes they can vary a bit from seeing them in reality. And also take into account the measurements and weight when it comes to small stones, the photos are enlarged to see them better and in all details. Please read: Doublets consist of two layers adhered together with glue: A black backing which is made of either black industrial glass, black potch (colourless opal), hard plastic, brown ironstone or sometimes vitrolite. A thin slice of opal (normally crystal opal or white opal). The thickness of the opal in a doublet can vary, however it is generally thicker than the opal found in a triplet. The edges of the slice of opal are generally rounded off (if there is enough opal) to give the stone a cabochon (domed top). Doublets can usually be identified by looking at the side of the opal – if the stone has been adhered together you will notice that the line where the coloured opal and the black backing meet is perfectly straight. This is necessary for the two layers to be adhered together. If a doublet is set into jewellery with the sides covered, it is extremely difficult, even for an expert, to tell whether it is a doublet or a solid opal. Since the top of the stone consists of pure opal, it therefore appears exactly like a black opal, and doublets thus have a much more natural appearance than triplets