There are many different varieties of precious and semi-precious gem stones in existence. Unfortunately there are about as many fake gem stones being presented as the real thing. Jewellery is considered more than a luxury; it's also an investment in an item you expect to last for a long time. You may even look forward to passing it to others in your family as an heirloom piece. Knowing how to spot fake gems is an important part of the jewellery-acquiring process.
Visit a respectable jeweller. One of the best ways to spot fake gems is to visit a jeweller for an evaluation. There are simulations (fake gem stones) out there that are so expertly crafted that it can be difficult for the average person to distinguish an authentic gem from a fake. If you're looking at a diamond, for example, keep in mind that it's rare to find stones that are completely transparent or perfect.
Pay attention to the setting. The majority of authentic gems are held in solid-back settings made of gold or platinum. The setting of authentic gem stones will usually be mounted in a setting with a solid back.
Watch out for colour coated fake gem stones. Some sellers fool customers by taking a glass or crystal stone and cover it with a colour-coated solution that makes it appear to look like a more expensive gem stone. For example, a crystal can be covered in a red-coated solution so that it appears to look like a ruby.
Avoid purchasing renamed gem stones. Another misleading practice among unscrupulous gem stone sellers is to take a less valuable gem stone and pass it off as a more expensive gemstone with a similar appearance. For example, a misleading seller might take a garnet and sell it as a ruby, or fool customers into thinking green tourmaline (made of green glass) is actually a Spanish emerald.