In this world of advanced technology it is almost impossible to simply look at a diamond and determine whether it is real or not especially if you dont know much about diamonds. There are some steps that you can take to avoid buying a fake diamond, however.
First, only deal with reputable jewelers, and when you find a reputable jeweler, stick with them. Avoid buying diamonds or other jewelry from jewelers that you have never dealt with before in the past. Ask to see the certificate for the stone. If no certificate exists, walk away.
Look at the setting that the stone is in. Fake diamonds, such as zirconias, are usually set in low quality metals. Take a close look at the stone. Fake diamonds are not durable natural diamonds, on the other hand, are the most durable stone on the planet. Look for scratches or nicks.
After purchasing a diamond, take it to another jeweler for appraisal. In fact, take it to two or three other jewelers for an appraisal to make sure that the appraisals are all fairly close. If you find that you have purchased a fake diamond, you may be accused of making a switch when you return to the store of your purchase; therefore, it is...