Deceptive Techniques Used in Jewelry
Various deceptive techniques are used to alter the appearance of lesser value gemstones. Often these practices are intended to deceive the consumer. However, all of these techniques are considered legitimate if they are revealed to the buyer. Listed below are a few tricks that every jewelry consumer should be aware of:
Painting. Using paint or some other colored material underneath a gem to improve its color. For example, a speck of paint placed on one spot of the gemstone will reflect throughout the entire stone.
Foil Backing. Using foil behind gems adds brilliance to the stone. This technique is often found in jewelry with closed back settings. The use of foil was common and is often seen in antique jewelry.
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