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Lab Grown Diamond Earrings vs Moissanite: Picking the Rightly Sparkly Gem

Updated: Jun 27

Mistaken by its discoverer, Henri Moissan, for diamonds, Moissanite set in stud earrings has the fire and brilliance approaching or even exceeding those of diamonds. In this article, we explore which works best for earrings by going through several factors to determine which sustainably sparkly gem that's right for you.

Moissanite and lab-grown diamonds are often mistaken for one another but are distinct gems with unique properties. Understanding the differences between Moissanite and lab-grown diamonds is crucial for making an informed choice. Today's conscientious consumers have a plethora of mined-diamond alternatives to choose from. It's common to confuse Moissanite with lab-grown diamonds or diamond simulants. Careful research is essential for those seeking sustainable, ethical, or cost-effective options.

Lab-Created Diamonds and Moissanite History

Over 300 gemstones have been discovered throughout history. Diamond is one of the oldest, while Moissanite is one of the most recent. Natural diamonds were first discovered in Indian caves between 4 and 6 B.C. Moissanite, however, was found much later by Henri Moissan in 1893. During a trip to the Arizona desert to investigate a meteorite crash, Moissan discovered silicon carbide, later named "moissanite" in his honor. This gem has since been manufactured in labs and is valued for its sparkle, durability, and lower price than lab-grown diamonds.

What is Moissanite vs Lab-Grown Diamond?

Lab-grown diamonds are structurally, chemically, and physically identical to mined or natural diamonds but are created using advanced technology and responsibly sourced materials. Moissanite, made of silicon carbide, is often used as a diamond substitute due to its brilliance, durability, and affordability. Both gems are produced in specialized facilities and offer appealing, cost-effective alternatives to mined diamonds.

How is Moissanite Formed vs Lab-Grown Diamonds?

Lab-grown diamonds are created from a natural diamond seed using methods like Chemical Vapor Deposition (CVD) or High-Pressure High Temperature (HPHT). These diamonds are visually, chemically, and structurally the same as natural diamonds. On the other hand, Moissanite is formed from silicon carbide in a lab, replicating the natural process involving heat and pressure.

Significant Differences Between Moissanite and Lab-Grown Diamonds


Stones are graded on the Mohs Scale of Hardness for their resistance to scratching. Moissanite has a Mohs rating of 9.25, while lab-grown diamonds rate a perfect 10. Both are suitable for everyday wear in engagement rings and fine jewelry.


Moissanite and lab-grown diamonds reflect light differently due to their unique faceting patterns. Moissanite has a refractive index of 2.65-2.69, resulting in a dazzling rainbow effect. Lab-grown diamonds exhibit brilliance, dispersion, and scintillation, creating legendary radiance.


Lab-grown diamonds can vary in color and are graded on the same standard or scale as natural diamonds (D–Z). Moissanite is not graded on this scale but typically falls within similar color ranges, from colorless to near-colorless.


Lab-grown diamonds of the same quality are much more affordable than mined or natural diamonds, with prices varying based on shape, carat, cut, color, and clarity. Moissanite is generally cheaper, with size, color, and clarity influencing prices.

What Works Best for Earrings?

Rarest Jewelries ever popular one-carat lab grown diamond studs. Boasting a near-colorless (E color) and rare clarity (VS1), these earrings can enable you to embrace effortless elegance with a touch of timeless sophistication in any occasion.

When it comes to choosing between Moissanite and lab-grown diamonds for earrings, several factors come into play:

  • Weight and Comfort: Earrings should be lightweight and comfortable for extended wear. Moissanite, being slightly lighter than diamonds, can be a more comfortable choice for larger earrings.

  • Sparkle and Visibility: Earrings are designed to catch the light and attract attention. Moissanite's higher refractive index means it often sparkles more vividly than diamonds, making it an excellent choice for those who want their earrings to stand out.

  • Durability: Both moissanite and lab-grown diamonds are durable enough for everyday wear, but lab-grown diamonds, with their higher hardness, may be preferable for those concerned about scratching or damage.

  • Cost: If budget is a significant consideration, Moissanite offers a stunning look at a fraction of the price of lab-grown diamonds, allowing for larger or more elaborate earring designs without breaking the bank.

  • Ethics and Sustainability: Moissanite and lab-grown diamonds are ethical and sustainable choices compared to mined diamonds. However, some consumers may prefer lab-grown diamonds because they resemble natural diamonds in terms of composition and appearance.

Ultimately, the best earrings for you depends on your personal style, budget, and priorities for sparkle, comfort, and sustainability.

Moissanite vs. Lab-Grown Diamonds: A Comparison

Rarest Jewelries’ 3.5-carat lab-grown diamond studs ticks all the boxes in terms of appearance, durability, affordability, sparkle, and style. With its staggeringly large lab-grown diamonds set in stunning 14K gold, these earrings can lend timeless elegance in any occasion and serve as treasures to be cherished by future generations.

  • Choosing between Moissanite and lab-grown diamonds depends on personal preference and priorities. Here are key points to consider:

  • Appearance: Both gems are visually stunning but differ in optical properties. Moissanite is known for its rainbow-colored light flashes, while lab-grown diamonds mimic the clarity and sparkle of natural diamonds.

  • Durability: Both are durable for everyday wear, but lab-grown diamonds are slightly harder and more scratch-resistant.

  • Price: Moissanite is typically less expensive, making it an attractive option for budget-conscious buyers.

  • Ethics: Lab-grown diamonds are produced without the environmental and ethical concerns of diamond mining.

  • Rarity: Moissanite is rare, but lab-grown diamonds can be produced to exact specifications.

  • Sparkle: Moissanite often has more "fire" and brilliance than diamonds, appearing to sparkle more.

Which One is Right for You?

Moissanite offers a high refractive index and affordability, making it a popular choice for those wanting the look of a diamond without the high price tag. Lab-grown diamonds, virtually indistinguishable from natural diamonds, are more ethical and environmentally friendly. Your choice depends on your design taste, preference, budget, and intended use.


Moissanite and lab-grown diamonds are excellent alternatives to natural diamonds, offering beauty and value. Whether you prioritize cost, ethical considerations, or the traditional appeal of diamonds, both gems provide great options for sparkling earrings.

Rarest Jewelries offers a stunning collection of lab-grown diamond stud earrings, like these stunning 4-carat lab-grown diamond stud earrings, that blend ethical sourcing with exceptional quality for those ready to make their choice. Explore our collection today and find the perfect pair that aligns with your values and style. Make a sustainable, sparkling statement with Rarest Jewelries' lab-grown diamond earrings.

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