![]() Indeed an unheated stone will cost about 30% more for stones of 1 to 2ct, and can be multiplied by 10 or more if you exceed a certain weight. For example, a good quality 1ct heated blue sapphire will cost about $1100/ct (€1000/ct) while a 3ct blue sapphire of the same quality will cost about $2100/ct (€2000/ct).Īnother factor that contributes greatly to the price of blue sapphires is the heat treatment. ![]() This is because the larger the gemstone, the rarer it is. ![]() It is important to note that the price of sapphire increases exponentially with its weight. It depends on a number of criteria: its color intensity, clarity, weight, origin and rarity. The value of Blue Sapphire is very variable.
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