Description
Yellow sapphire is the stone that is said to represent the planet Jupiter (Guru, Pukhraaj). Surprisingly very few traders know that the yellow sapphire and the blue sapphire have the same chemical composition identical to that of ruby. All three have the same basic composition aluminium oxide and belong to the corundum family. The various colours are imparted due to certain impurities, the red colour in ruby is due to chromium, and the yellow colour is the result of iron whereas the blue colour in sapphire is caused by titanium as well as iron impurities.
Another important aspect which many people fail to understand is that there can be many yellow coloured stones of different mineral species. For example yellow beryl, yellow garnet, yellow chrysoberyl, yellow feldspar, yellow spodumene, yellow scapolite, yellow topaz all of which can look identical to yellow sapphire that even the best experienced trader is advised caution before he judges and values the stones.
The most recent fraud is yellow coloured synthetic cubic zirconia (popularly called American diamond) sold as natural yellow sapphire. Generally such type of stones are set in ring and the synthetic stone has a sparkling luster that often tempts many people to buy the stone.
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