Four factors that affect the level and price of rubies:
Color: preferably VIVIDRED or RED;
Impurities: preferably in the case of invisible to the naked eye;
Carat: At least 1 carat or more to have a collection value;
Cutting: At least 40% of the fire.
In addition, the origin of rubies is also very important. Pigeon'sBlood Origin: Burma Myanmar's pigeon blood ruby ​​is the most commercially valuable, so merchants will issue certificates for GRS and other authorities for the corresponding gemstones, and clearly marked in the Origin column: Burma (Mogok, Myanmar) ). When reading a gemstone certificate, the Comment section is essential, and the Noindication of thermaltreatment is used to indicate that the pigeon's blood ruby ​​has not been artificially optimized.
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