Lab Diamonds vs Moissanite
Lab-grown diamonds are synthetic diamonds with the same chemical composition as natural diamonds, while moissanite is a different gemstone with unique properties. The choice between the two depends on personal preferences, budget, and the desired aesthetic and optical qualities in jewelry. Here are some of the differences between the two:
Composition
Lab-grown diamonds are composed of carbon atoms arranged in a crystal lattice structure, identical in chemical composition and physical properties to natural diamonds. Moissanite is composed of silicon carbide (SiC), which is a different chemical compound from diamonds. Moissanite has a different crystal structure and, as a result, distinct optical properties.
Hardness
Lab-grown diamonds are the hardest natural material, ranking at the top of the Mohs scale with a hardness of 10. This makes them highly resistant to scratches and wear. Moissanite is also quite hard, with a Mohs hardness rating of 9.25, making it very durable and resistant to scratching. While not as hard as diamonds, it is still a very durable option for jewelry.
Brilliance & Fire
Lab-grown diamonds are known for their exceptional brilliance and fire due to their high refractive index. They disperse light into the spectral colors, creating the characteristic "fire." Moissanite exhibits even more fire (rainbow flashes of color) than diamonds, making it very popular for its sparkling and colorful appearance. However, some people may find the rainbow flashes to be more colorful and intense than they prefer.
Color
Lab-grown diamonds come in various colors, but colorless or near-colorless diamonds are the most highly valued. Colored lab-grown diamonds are also available, though they are less common. Moissanite is typically near-colorless and has a slight yellow or greenish tint in its natural form. However, most moissanite gemstones used in jewelry are color-enhanced to be more white or colorless.
Price
Lab-grown diamonds vary in price depending on their quality and size, but they are generally more affordable than natural diamonds of similar size and quality. Moissanite is usually significantly less expensive than both natural and lab-grown diamonds, making it a popular choice for budget-conscious buyers.
Origin
Lab-grown diamonds are created in a controlled laboratory environment using one of two primary methods (HPHT or CVD). Moissanite is naturally found in meteorites, but the moissanite used in jewelry is typically lab-grown because natural moissanite is extremely rare.
Cultural & Symbolic Value
Lab-grown diamonds are often chosen for ethical and environmental reasons and may be used to symbolize love and commitment similarly to natural diamonds.
Moissanite is often chosen for its affordability and unique optical properties. It is less associated with traditional symbolism.