There are several scams to avoid when looking for diamonds. Big scams occur mostly when buying and selling diamonds because many buyers understand very little about diamonds and eventually fall victims to con artists.
One of the most common scans revolves around the weight and measurements of the diamonds. In this case, the tag on the jewelry lists the weight of the whole piece of jewelry instead of indicating the weights of the diamond and the frame separately. The buyer is usually led to believe that the weight shown is the total weight of the diamond.
Be sure to enquire the total weight of the centre stone. Fractions are also quite tricky since jewelers are allowed to round off diamond weights. A tag stating the weight of the diamond to be a 0.75 carat diamond is probably less or closer to 0.75 carat, but not exact.
Fluorescence scams are also common. The blue-white diamond is one such example of such scams. The term sounds unique but the stone is actually of very inferior quality and yet the jeweler will try as much as possible to convince you are getting a good deal. In this type of scam, the jewelers will also showcase the diamonds in very bright lights which will make the diamonds shine. Request to view the stone in dark lit areas to ascertain their claims.
Some other jewelers will use mud slinging techniques, otherwise known as low balling, whereby they will try to convince you that the diamond you have is worthless or cheaper than what you paid for it. They will even try to trade it for a better diamond and add you some cash to make up for the difference. Get several opinions before taking any kind of decision.
Switching diamonds is another dirty trick used by unscrupulous jewelers to dupe consumers. This may occur when you have bought a diamond and left it for sizing or to be mounted on a ring, bracelet or necklace only for it to be switched with a diamond of a lesser quality. One sure way of dealing with such is by only using reputable and trustworthy jewelers.
Jewelers often pull many more scams on unsuspecting buyers by taking advantage on their inexperience with diamonds. Be cautious and use your judgment to buy your diamonds carefully.