DeMoissa
Frequently Asked Questions

Below you'll find a comprehensive list of questions that we're asked on a regular basis.

Moissanite was discovered in 1893 by Henri Moissan, a French chemist. Named after himself, this naturally occurring silicon carbide mineral was found inside a meteorite crater. It is almost as hard as diamond and can be lab’ grown to prevent environmental damage.

Absolutely not! Moissanite is neither fake nor tacky. It is not synthetic; in fact, it has its own set of chemical and optical properties that makes it different from any gemstone.

Moissanite does occur naturally but is extremely rare. Most moissanite sold today is lab-grown and is more brilliant than a natural diamond.

It’s difficult to tell the difference between these two stones with the naked eye. Moissanite’s cut, colour, clarity and carat are identical to diamond. Jewellery experts have to closely examine it using a ‘loupe’ and a ‘moissanite tester’ (a device that measures electrical conductivity).

  • Sparkle

Unlike diamonds, moissanite has a higher reflective index and fire dispersion at 0.104 which makes it sparkles even more. This is more evident when a pure, white light shines on the stone which emanates rainbow flashes.

  • Hardness

How hard is moissanite? On a Mohs scale of 10, moissanite is at 9.25-9.5 which ranks next to diamonds (the hardest gem).

Yes, moissanite will test positive using a traditional thermal diamond tester. This is because moissanite and diamonds have a very similar heat signature.

The shape/cut of moissanite that has the closest resemblance to diamonds is the round cut. It can be cut in very specific facets and proportions to reflect light back through the top of the stone.

Moissanite is made of silicon carbide and is typically harder at 9.5 on a 10 point scale. On the other hand, cubic zirconia is made of zirconium dioxide which is 8.5 on the hardness scale.

There are three grades of moissanite.

  • colorless by GIA standards (D-E-F range),
  • near-colorless (G-H-I range ), and
  • with faint hues of color (J-K range).

The highest grades and the highest value is D-E-F since they are closest to colourless.

At Demoissa we use only D graded moissanite stones. 

Definitely not. There are no likely situations in which the colour of moissanite will be permanently changed.

Yes, moissanite is durable and extremely resistant to scratching and abrasion.

No, moissanite is one of the toughest known gemstones. Being highly resistant to breaking and chipping, it is well suited to fine jewellery like a wedding band, engagement ring, earrings, necklace etc.

Definitely! Moissanite engagement rings are grown in labs so you can be sure that it’s intricately crafted. It’s hard, brilliant, doesn’t collect dirt, and has a smaller carbon footprint than traditional gemstones.

Cleaning your moissanite jewellery is no different to caring for diamonds. Simply drop your jewellery in warm water with non-acidic based jewellery cleaner or mild soap and gently scrub with a soft toothbrush or cloth. Make sure to clean those hard to reach areas as well. Rinse it off and dry with a clean cloth.

Yes! Whether it is moissanite wedding rings or moissanite engagement rings, you can wear them daily. Moissanites are strong, long-lasting gemstones and are incredibly durable, meaning they will survive daily wear and tear.

However, they should not be cleaned in a heated ultrasonic cleaner, soaked in jewellery cleaner for longer periods, exposed to harsh chemicals, pools or hot tubs.

You’ve probably heard that diamonds are forever. Well, just like diamonds, moissanite will also last forever.

Yes. Moissanite has a high heat tolerance which makes it resistant to breaking, chipping and damage during jewellery repair. So, if your wedding band doesn’t fit, you can have it resized without any worries.

Engagement rings in Singapore can range anywhere from S$700 to S$100,000, but the most commonly sold rings (0.5-1.0 carats) are generally priced from S$1,230.90 to S$2,066.30.

The average wedding rings and wedding bands, on the other hand, cost S$2,000-S$5,000.

For moissanite earrings, the average cost is S$200-S$1000.

While moissanite may have many of the same properties as diamonds, its price tag makes it a far more affordable choice. Moissanite’s cheaper price point is not by any means an indication of its quality. It’s just that its demand and supply are much lesser than a natural diamond.

– Moissanite is durable, tough, and hard and can withstand daily wear.

– It’s 60% cheaper than diamonds, making it a budget-friendly engagement or wedding ring.

– Moissanite is 50% more lustrous than CZ and 18% more lustrous than a diamond.

– The brilliance and fire of moissanite are unmatched.

– It sparkles and flashes rainbow light due to its high refractive index.

14k and 18k don’t affect its composition, only its durability, expense, and colour. 14k is more durable, much darker and less expensive.

Which one will you choose? It depends on your preference in colour, your budget, and your lifestyle.

But whether it is gold, rose gold, or white gold, the bands or chains where the moissanite stones are arranged will perfectly blend with it.

Yes, you can rest assured that purchasing through our online platform is safe. Your personal information and privacy are 100% protected. We maintain confidentiality with our customers because we value an honest and secure transaction.

Our jewellery is crafted with lab-grown moissanite by the most skilled professionals to guarantee high-quality pieces of jewellery from us. Every piece of moissanite comes with a certification as a testament to its quality and authenticity.

All our pieces are handcrafted and made to order. They will be created and dispatched within 1 week and should arrive within 2-3 weeks. For more information please see our Shipping and Returns Policy.