How to Tell if a Diamond is Real or Moissanite
Diamonds are one of the most coveted gemstones in the world. Their brilliance, durability, and rarity make them the ultimate symbol of luxury and love. However, with the rise of alternative gemstones like moissanite, it has become increasingly important to know how to determine if a diamond is real or if it is a moissanite.
Moissanite, a lab-created gemstone, is often used as a diamond substitute due to its similar appearance and lower cost. While moissanite may be a beautiful gemstone in its own right, it is not a diamond. Simple ways to distinguish moissanite from real diamonds can help you make an informed decision when purchasing jewelry or when you need to verify the authenticity of a diamond you already own.
1. The Sparkle Test
One way to distinguish between a diamond and moissanite is by examining their sparkle. Diamonds exhibit a unique sparkle known as “disco ball effect” or “fire.” This refers to the way a diamond disperses light, creating flashes of color. On the other hand, moissanite tends to have a different kind of sparkle, known as a “rainbow effect.” This effect is caused by the gemstone’s higher refractive index, which results in more colorful flashes of light.
2. The Hardness Test
Diamonds are the hardest substance on Earth, scoring a perfect 10 on the Mohs scale of mineral hardness. Moissanite, although durable in its own right, ranks slightly lower on the scale with a hardness of 9.25. This means that diamonds can scratch moissanite, while moissanite cannot scratch a diamond. By using a diamond tester or performing a scratch test, you can determine the hardness of the gemstone and determine if it is a diamond or moissanite.
3. The Thermal Conductivity Test
Diamonds have exceptional thermal conductivity, meaning they disperse heat quickly. This property allows diamonds to fog up briefly when breathed upon or touched. Moissanite, on the other hand, has lower thermal conductivity and does not fog up as readily. By breathing on the gemstone or touching it to see if it fogs up, you can gauge its thermal conductivity and determine if it is a diamond or moissanite.
4. The Electrical Conductivity Test
Diamonds are excellent electrical insulators, meaning they do not conduct electricity. Moissanite, on the other hand, has some electrical conductivity due to impurities in its crystal structure. By using an electrical conductivity tester, you can determine if the gemstone conducts electricity and thus distinguish between a diamond and moissanite.
5. The Professional Opinion
If you are still unsure about the authenticity of a diamond, it is always advisable to seek the opinion of a professional jeweler or gemologist. These experts have the knowledge and experience to accurately identify and authenticate diamonds. They can use specialized tools and techniques to determine if a gemstone is a diamond or moissanite.
In conclusion, while moissanite may be a stunning gemstone, it is not a diamond. Simple ways to distinguish moissanite from real diamonds include examining the gemstone’s sparkle, hardness, thermal conductivity, electrical conductivity, and seeking the opinion of a professional. By using these methods, you can ensure that you are purchasing or verifying the authenticity of a diamond, adding to your confidence and peace of mind when investing in precious gemstones.