Unmasking Alexandrite Imitations: How to Spot the Real Gem from the Fakes

When it comes to gemstones, Alexandrite is one of the most sought-after and prized varieties. Known for its remarkable color-changing properties, this gemstone exhibits hues ranging from green in daylight to red under incandescent light. Due to its rarity and high value, Alexandrite imitations have flooded the market. In this article, we will explore some common types of Alexandrite imitations and how to distinguish them from the genuine gem.
1. Synthetic Alexandrite: Created in a laboratory setting, synthetic Alexandrites possess the same physical and chemical properties as natural ones. These lab-grown gems offer an affordable alternative to their natural counterparts while maintaining a similar appearance. To identify synthetic Alexandrites, look for telltale signs such as perfect clarity without any inclusions or flaws.
2. Color-change Garnet: Often marketed as “Alexandrite Garnet,” this gemstone closely resembles true Alexandrite due to its color-changing nature. However, while genuine Alexandrites exhibit a distinct change from green to red, color-change garnets typically shift from brownish-green in daylight to pinkish-red under incandescent light. Pay attention to the intensity of color change when differentiating between these two stones.
3. Color-change Sapphires: Certain sapphires can also display color-changing effects that resemble those of Alexandrites. These sapphires often shift from blue or violet in daylight to purple or reddish-purple under artificial lighting conditions. Despite their similarity in appearance, color-change sapphires lack the unique green-to-red transformation found exclusively in genuine Alexandrites.
4. Glass Doublets: Glass doublets are created by sandwiching a layer of colored glass between two pieces of clear glass or crystal quartz material and then cutting them into desired shapes resembling genuine gems like Alexandrites. Although they may mimic the colors of an authentic stone when viewed at first glance, glass doublets lack the inherent optical properties and durability of natural Alexandrites.
5. Simulated Alexandrite: Simulated Alexandrites are made from entirely different materials such as cubic zirconia or colored glass. While they may share a similar color-changing effect, these imitations lack the genuine beauty and value associated with real Alexandrites.
To avoid being deceived by imitations, it is essential to purchase gemstones from reputable sources. Always ask for certificates of authenticity and consult with gemstone experts if in doubt. Genuine Alexandrites often come at a higher price due to their rarity, but their unique charm and exquisite color-changing properties make them truly one-of-a-kind gems worth investing in.