Moissanite vs Diamond: Understanding the Differences in Brilliance and Value

June 20, 2024 Off By Deanna Coleman


When it comes to choosing a stone for your jewelry, the decision between moissanite and diamond often arises. Both offer dazzling brilliance and allure, but they differ significantly in composition, cost, and environmental impact. Understanding these differences can help you make an informed choice that aligns with your preferences and values.

Composition and Properties

Moissanite Discovered by Henri Moissan in 1893, moissanite is a naturally occurring mineral, though today it is primarily lab-created for commercial use. Chemically, lab made diamonds, it consists of silicon carbide (SiC) and is renowned for its exceptional hardness and brilliance.

Diamond Diamonds are formed deep within the Earth’s mantle over millions of years under extreme pressure and temperature. Composed of carbon atoms arranged in a crystalline structure, diamonds are renowned for their hardness and unmatched brilliance.

Durability and Hardness

Moissanite On the Mohs scale of hardness, moissanite scores 9.25, making it one of the hardest substances on earth, suitable for everyday wear without scratching or abrasion.

Diamond Diamonds top the Mohs scale at 10, making them the hardest known natural material, ensuring exceptional durability and longevity.

Brilliance and Sparkle

Moissanite Moissanite exhibits a fiery, rainbow-like sparkle due to its high refractive index and dispersion, which disperses light into flashes of spectral colors.

Diamond Diamonds are revered for their unparalleled brilliance and white light reflection, offering a classic, timeless sparkle.

Color and Clarity

Moissanite Moissanite is typically near-colorless and ranges from colorless to slightly yellow or green hues. It is graded for clarity, with most stones being eye-clean without visible inclusions.

Diamond Diamonds are graded on a color scale from D (colorless) to Z (light yellow or brown), and on a clarity scale from Flawless to Included (I3), affecting their overall brilliance and value.

Cost Comparison

Moissanite Moissanite is significantly more affordable than diamonds of similar size and appearance, making it an attractive option for budget-conscious consumers.

Diamond Diamonds are priced higher due to their rarity and demand, with prices varying widely based on cut, color, clarity, and carat weight.

Environmental Impact

Moissanite Lab-created moissanite minimizes environmental impact by reducing the need for diamond mining, a process known for its ecological footprint.

Diamond Diamond mining, while regulated, has environmental consequences including habitat destruction and carbon emissions, despite efforts toward sustainable practices.

Ethical Considerations

Moissanite Moissanite is ethically sourced and produced, with lab-created stones ensuring a conflict-free supply chain.

Diamond Diamonds face challenges regarding ethical mining practices, though initiatives like Kimberley Process Certification aim to address these concerns.

Popularity and Trends

Moissanite Moissanite’s popularity is on the rise, especially among millennials and eco-conscious consumers seeking affordable luxury with minimal environmental impact.

Diamond Diamonds maintain their status as a symbol of enduring love and luxury, appealing to those valuing tradition and prestige.

Practical Applications

Moissanite In jewelry, moissanite is often used as a diamond alternative, offering affordability without sacrificing brilliance. It also finds applications in electronics and abrasives.

Diamond Beyond jewelry, moissanite vs diamond, diamonds are used extensively in industry for cutting, drilling, and as abrasives due to their hardness.

Buying Guide

When choosing between moissanite and diamond, consider factors like budget, desired brilliance, ethical considerations, and personal style preferences.

Maintenance Tips

Moissanite Clean moissanite jewelry with mild soap and warm water, avoiding harsh chemicals to preserve its brilliance.

Diamond Diamonds can be cleaned using a jewelry cleaner or a mix of mild soap and warm water, ensuring regular upkeep to maintain their sparkle.

Myths and Misconceptions

Moissanite Common myths include confusion with cubic zirconia or inferior quality compared to diamonds, debunked by its unique properties and brilliance.

Diamond Misconceptions include the belief that all diamonds are conflict diamonds, whereas many are ethically sourced through responsible mining practices.


In conclusion, moissanite and diamond each offer unique advantages depending on your priorities. Whether you prioritize brilliance, budget, or ethical considerations, both stones have their place in the world of jewelry and beyond.