Ruby – Lab-made, Faceted, Red

Some synthetic gemstones, like this "Ruby (Fake)," are clearly labeled as such. Risks arise for gem buyers when gems are labeled incorrectly in the marketplace, whether in error or deliberately. Photo by maicos is licensed under CC By 2.0.

Article: Understanding Gem Synthetics, Treatments, And Imitations, Part 1: An Introduction

Credit: maicos