How To Distinguish Moissanite From Diamonds

How To Distinguish Moissanite From Diamonds

Moissanite diamonds can be identified using various methods. Here are some common ways to distinguish moissanite from diamonds:

  1. Visual Inspection: Moissanite has different optical properties than diamonds, which can be observed under magnification. Moissanite typically exhibits a higher level of brilliance (sparkle) and fire (color dispersion) compared to diamonds. Additionally, moissanite may display double refraction, meaning it can create a doubling effect when viewed through a loupe or microscope, while diamonds typically do not exhibit this phenomenon.

  2. Electrical Conductivity Test: Moissanite is electrically conductive, whereas diamonds are typically not conductive. This difference can be detected using specialized electrical conductivity testers designed for gemstone identification.

  3. Thermal Conductivity Test: Moissanite has significantly higher thermal conductivity than diamonds. Instruments such as thermal conductivity probes or testers can detect this difference by measuring how quickly heat dissipates from the gemstone.

  4. UV Fluorescence: Moissanite and diamonds may exhibit different responses to ultraviolet (UV) light. While many diamonds fluoresce under UV light (emitting a blue glow), moissanite usually does not fluoresce or may exhibit a different color glow.

  5. Gemological Testing: Gemological laboratories, such as the Gemological Institute of America (GIA), offer advanced testing and analysis services to accurately identify gemstones, including moissanite. These tests may involve spectroscopy, microscopy, and other scientific techniques to determine the gemstone's identity.

It's important to note that while these methods can be effective in identifying moissanite, they may require specialized equipment or expertise. For accurate identification, particularly when purchasing high-value gemstones, it's advisable to consult with a qualified gemologist or have the gemstone tested by a reputable gemological laboratory.