The main problem of a person buying a ruby is to determine its authenticity. There is a simple and reliable solution to this problem - consultation of an experienced jeweler or gemologist. You can also give the stone to experts who will check, evaluate it and issue a conclusion using professional equipment. However, you can do it yourself and, knowing several ways to determine the authenticity, save yourself from buying a fake stone.
- - a clean glass vessel;
- - water;
- - cow's milk;
A large, deep, bloody ruby and a low price are nonsense. Such stones are very rare (as a rule, these are the famous Burmese rubies) and are close in value to diamonds. If you are offered to buy a large stone of intense red color for a small price, be sure that they are trying to sell you a fake.
Place the ruby in a clean glass jar. A reddish spread on the glass will indicate that this is a real stone.
Dip the ruby in the cow's milk. If the ruby is genuine, the milk will take on a pinkish tint. If the milk remains naturally yellowish, the ruby is fake.
Place the stone in your palm and, slightly swaying on the weight, feel its mass, weight. Natural ruby is noticeably denser, heavier than glass.
Our eyelids are very sensitive to heat and cold. Considering this property, do the following experiment: put the ruby on the eyelid and concentrate, listen to the sensations. A trinket imitating a ruby (glass, plastic or pebble) will quickly heat up and you will no longer feel it for your eyelids. While an authentic ruby stays cool for a long time.
Place the ruby under a UV lamp. The real stone will remain the same color, the fake one will change color. It will most likely turn orange.
Look at the facet of a ruby first from one angle and then from another. In one case, this part will be dark red, in the other it will be paler.
In a real ruby, the bubbles, if any (which is very rare), have a round shape and the same color as the stone itself. In fakes, the bubbles are white, often empty, "opened".