5/21/2023 0 Comments Black blue sapphireIf required, we may send the Gemstone(s) to a Gem laboratory for more information prior to your purchase.Products shown are subject to is not responsible for and need not honor typographical or pricing errors on the site.Īll Diamond weight(s) shown in fractions in this website are approximate, with the following weight tolerance: ¼ ct. We do not know the methods used prior to our purchase from the suppliers since each country uses different methods. Some of the treatment methods used are coating, diffusion, dyeing, joban oil, glass filling, irradiation, lasering, etc. In general, some of the enhancement methods used are heating, oiling, filling, with resin agents etc. All our colored gemstones & Color Diamonds, except Tsavorite, Garnet etc., are "E" (Enhanced) and/or "T" (Treated).
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