What’s the difference between Moissanite and Diamond?

What’s the difference between Moissanite and Diamond?

Moissanite and Diamond are distinct gemstones, with no fundamental relation between them. Despite this, the striking similarity in appearance between Moissanite and Diamond often invites comparisons. It requires the keen eye of a specialist to distinguish between the two. They both possess high refractive indices, a characteristic responsible for their dazzling brilliance. However, they exhibit different behavior towards light, derive from different sources, and bear different price tags. As one of the most renowned and sought-after gemstones, Diamond's unique characteristics are often used as the benchmark for comparison with other gemstones, including Moissanite. If your preference leans towards the traditional and you don't mind paying a premium, diamonds could be your preferred choice. Continue reading to explore the primary differences between Moissanite and Diamond, outlined below.





As lab-created gems, moissanite doesn't require mining, making it a more environmentally conscious choice. Additionally, issues such as blood diamonds aren't a concern with moissanite. These gemstones are often sourced from regulated factories with proper working conditions.

Diamonds, however, have a history tied to "blood diamonds" and require extensive mining, which can impact the environment significantly.


Rated at 9.25 on the Mohs Scale of Hardness, Moissanite is highly resistant to surface scratches, making it a durable gemstone suitable for everyday wear, such as in engagement rings.

Diamonds are the hardest known mineral, with a rating of 10 on the Mohs scale. They're exceptionally durable, ideal for settings like engagement rings.

Brilliance & Refraction

Moissanite possesses a higher refractive index, which results in greater brilliance when exposed to light. Moissanite is doubly refractive, meaning it reflects light twice. It also boasts a higher refractive index of 2.65, indicating that Moissanite reflects more color than a diamond. Furthermore, light travels through moissanite differently, producing a fiery, rainbow-like flash, especially in sunlight. This aspect can reveal the difference between the two gems to a trained eye.

Although Diamonds are high on the refractive index and exhibit remarkable brilliance, they don't produce the same level of fiery rainbow flash as Moissanite.  Diamond is singly refractive, reflecting light only once. It has a refractive index of 2.42, which is lower than that of Moissanite. Diamonds typically present a more understated brilliance with less color in their sparkle compared to Moissanite.


Even when graded as colorless, Moissanites can sometimes appear to have yellow or grayish hues in certain lights. Standardly, Moissanites are (near) colorless.

Near colorless diamonds, either natural or lab-created, exhibit a natural color devoid of yellow, brown, or grey hues, often appearing whiter compared to a Moissanite.


On average, Moissanite is considerably less expensive than Diamond. While some companies may charge high markups, we strive to offer these gemstones at affordable prices without compromising on quality.

Diamonds vary significantly in price, but for a similar size and quality, they tend to be (far) more expensive than Moissanite.


If you prioritize ethical sourcing, brilliance, and budget-consciousness, moissanite rings and jewelry could be your ideal choice. However, we understand we might be a little biased!

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