Is Moissanite Actually Worth Anything?

Moissanite is worth buying as jewellery, but it does not hold resale value in the same way natural diamonds do. A moissanite ring retains its brilliance, hardness (9.25 Moh Scale), and appearance permanently. It will not cloud, scratch, or degrade over decades. However, if you sell it, expect to recover 10–20% of the purchase price at most. Worth as wearable jewellery: high. Worth as an investment: low.

Read on to find out what it is worth to wear, what it is worth to sell, and whether it belongs in your jewellery box or your investment plan.

What is Moissanite and Why Is It So Popular?

Moissanite is a naturally occurring silicon carbide gemstone, first discovered in 1893 by French chemist Henri Moissan inside a meteor crater in Arizona. Natural moissanite is exceptionally rare, so virtually all moissanite sold today is lab-grown, produced under controlled conditions to replicate the same chemical and optical properties as the original.

Its popularity in the UK has grown steadily for three reasons:

•  It looks strikingly similar to diamond to the naked eye

•  It costs a fraction of the price for a comparable size and quality

•  It is lab-created, making it a conflict-free and ethically straightforward choice
  
  

For couples shopping for engagement rings in particular, moissanite offers a visually impressive stone without the financial and ethical weight that often comes with natural diamonds.

Characteristics of Moissanite

Understanding what moissanite is made of explains why it performs so well as a gemstone.

• Hardness: Moissanite scores 9.25 on the Mohs scale, making it the second hardest gemstone used in jewellery after diamond (10). It is highly resistant to scratching and suitable for everyday wear.

• Brilliance: Moissanite has a higher refractive index than diamond (2.65–2.69 vs 2.42), meaning it reflects more light and produces more fire, the rainbow-like flashes visible in direct light.

• Colour: Most moissanite sold today is near-colourless, graded equivalent to G–H on the diamond colour scale. Premium cuts are available in D–F equivalent colouring.

• Clarity: Lab-grown moissanite is produced with very few inclusions, giving it excellent clarity without the premium cost attached to high-clarity diamonds.

• Weight: Moissanite is lighter than diamond. A moissanite stone of the same physical dimensions will weigh approximately 10% less.

  
  

What Gives Moissanite Its Worth?

Moissanite derives its worth from four core qualities.

• Durability: At 9.25 on the Mohs scale, it withstands daily wear far better than most gemstones. A moissanite ring bought today will look the same decades from now with basic care.

• Optical performance: Its brilliance and fire exceed that of diamond. It is a measurable optical property. For buyers who want a stone that draws attention, moissanite delivers visually.

• Ethical provenance: Every moissanite is lab-created. There are no mining operations, no conflict supply chains, and no environmental extraction costs attached to it. For an increasing number of UK buyers, this alone adds significant worth.

• Accessibility: Moissanite allows buyers to choose a larger, higher-quality stone than their budget would permit with diamond. The worth here is practical: more stone, more sparkle, less financial strain.

Moissanite vs. Diamond Resale: A Value Comparison

Diamonds are widely assumed to hold their value, but most pre-owned diamonds sell for 20–40% of their original retail price. Moissanite resells for considerably less, often 10–20% of retail, because the resale market for it is smaller and still developing.

Buyers sometimes choose diamond over moissanite purely on the assumption that diamond is a sound financial asset. For most retail purchases, it is not. Neither stone should be bought with resale profit in mind.

Does Moissanite Have Resale Value in the UK?

Moissanite does not hold its value well on resale. The resale market for moissanite is still relatively young in the UK. As demand grows and more buyers normalise moissanite as a legitimate gemstone choice, resale conditions may improve. For now, anyone expecting to sell moissanite jewellery and recover a significant portion of the original spend will likely be disappointed.

Where moissanite does hold its value is in use. It does not cloud, yellow, or degrade over time. The stone you purchase will look identical in twenty years, which is a form of value that resale figures do not capture.

Factors That Affect Moissanite Resale Value

Several variables influence what a moissanite stone or piece of jewellery will fetch on the secondary market.

• Stone size: Larger stones attract more buyer interest and typically command better resale returns relative to smaller stones.

• Cut quality: A well-cut moissanite with strong light performance will always be more desirable to a resale buyer than a poorly cut equivalent.

• Setting and metal: The value of the metal, whether white gold, yellow gold, or platinum, contributes to the overall resale price. A high-quality setting adds worth independent of the stone.

• Brand or maker: Moissanite from a recognised jeweller or brand carries more buyer confidence on resale than an unbranded stone with no provenance documentation.

• Condition: Scratched settings, damaged prongs, or missing certification will reduce resale interest significantly.

• Certification: A grading certificate from a recognised gemological body adds credibility and supports a stronger resale position.

Is Moissanite a Good Investment or Not?

As a financial investment, moissanite is not strong. It does not appreciate in value, the resale market is limited, and buyers will rarely recover what they originally spent.

As a personal investment, the picture is different. Moissanite offers lasting durability, strong visual appeal, and ethical peace of mind at a cost that does not require financial compromise. For buyers who measure worth in long-term enjoyment rather than resale returns, moissanite represents good value.

If your primary reason for buying a gemstone is financial return, moissanite is not the right choice. If your reason is to own a beautiful, durable, ethically sourced stone at a sensible spend, moissanite is worth serious consideration.

Where Can You Resell Moissanite Jewellery?

Online Marketplaces:

Platforms such as eBay and Etsy allow direct seller-to-buyer transactions. These typically returnbetter prices than selling to a third-party dealer because there is no middleman taking a margin.

Specialist Resale Jewellers:

Some independent jewellers and estate jewellery dealers will buy moissanite pieces, though offers tend to reflect the metal value more than the stone itself.

Facebook Marketplace and Local Selling Groups:

Increasingly popular for jewellery resale in the UK, particularly for buyers who want to inspect pieces in person before purchasing.

Jewellery Auction Houses:

Suitable for higher-value pieces with strong certification and provenance. Not practical for standard retail moissanite purchases.

Part-exchange with Jewellers:

Some moissanite jewellers offer part-exchange or upgrade programmes, allowing buyers to trade in an existing stone against a new purchase. This is often the most straightforward route for recovering partial value.

Conclusion

Moissanite is worth something, but whether it is worth it depends on what value means to you. As a resale asset, it is weak. As a wearable gemstone built for everyday life, it is exceptionally strong. It is durable, visually impressive, ethically sound, and accessible at a cost that makes financial sense for most buyers. Whether you are shopping for an engagement ring, a pair of earrings, a pendant, or a necklace, moissanite delivers across every category without the financial or ethical compromise of a mined diamond.

For the majority of UK buyers who want a beautiful stone without the debt or ethical compromise of a mined diamond, moissanite is worth it.

FAQs

Does moissanite look different under artificial lighting compared to natural light?

Yes. It produces stronger rainbow fire under artificial lighting and a subtler sparkle in natural daylight.

Can moissanite be insured in the UK?

Yes. Most UK home contents and specialist jewellery insurers cover it. Keep your receipt or grading certificate to support any claim.

Is moissanite graded the same way as diamond?

No. Moissanite follows its own grading standards focused on colour and cut. It does not use the GIA four-factor diamond grading system.

Does moissanite test as diamond on a standard gem tester?

Yes. Basic testers measure thermal conductivity and moissanite reads as diamond on them. A dedicated moissanite tester or professional gemologist is needed to tell them apart.

How long does a moissanite stone typically last?

Indefinitely. At 9.25 on the Mohs scale it does not scratch, cloud, or degrade. With basic care it will look the same in fifty years as it does today.