Diamond vs. Moissanite

Mark Maglin, Gemologist

How do you decide between diamond and Moissanite? What is it that you need to know? Maybe the price tag of a diamond isn’t the most attractive for your budget. It could be that getting Moissanite would not weigh on your conscience as much as the thought that you could be buying blood diamonds. Both offer something different even as both are excellent options when looking for an engagement ring. Let’s see if we can make a detailed comparison that could help you arrive at the best decision for your unique need.


If sparkle is a major factor for you, diamonds and Moissanite shine bright. Both are remarkable options when you measure their brilliance. This brilliance that’s relative to a stone’s refractive index and this is where Moissanite slightly beats out diamonds with a greater refractive index that’s between 2.65 and 2.69, compared to a diamond’s 2.42. Both stones are cut differently giving Moissanite the edge on sparkle.


Diamonds are the hardest known minerals and are impervious to most kinds of wear and tear and less likely to be damaged by abrasions. Moissanite is also pretty durable, thanks to the strong carbon bonds in silicon carbide. On the Mohs Scale of Hardness, Moissanite has a hardness score of 9.25, while diamonds are 10. Both gemstones are highly resistant to heat. Overall, diamond is unbeatable in durability.


Lab-produced high-quality Moissanite is regarded as a “colorless gemstone,” but traditionally, they have some color to them-a a greenish or yellowish tint, depending on the lighting. While diamonds can be colorless, they can also emit an array of colors. Their color is graded on a scale of D-Z, where D is colorless and Z being brown or a light yellow. However, diamonds can also be blue, green, yellow, and pink. The color factor may rest on preference.


Inclusions typically in the facets of jewelry gemstone and these tiny blemishes are unique to each stone adding to its uniqueness. Moissanite inclusions are generally microscopic and don't impact the brilliance or clarity of the stone. Diamonds’ inclusions are also microscopic, but clarity can be anywhere from flawless to imperfect based on the Gemology Institute of America (GIA) diamond clarity chart system.


Diamonds cost significantly more than Moissanite gemstones. If you are looking for a budget-friendly stone, then Moissanite is the ideal option compared to diamond. Whether Moissanite or diamond, if you are looking for a custom piece of jewelry using any of the gemstones or if the carat weight is heavier, it will be a bit pricier.

Contact Gembyr Today

Contact professional jewelry wholesaler, Gembyr today for more information about diamonds and moissanite! Gembyr is located in Portsmouth, New Hampshire, and is always looking to buy or sell unwanted jewelry. Contact Mark at1-603-828-1144 or fill our our quick and easy contact form for answers to any of your old Gold, Platinum, Diamond, or Jewelry questions. We look forward to assisting you!