Loose Cubic Zirconia Round Brilliant 18.5mm Blue Topaz Highest Quality 6A

High-quality synthetic gemstone • Ships Worldwide from the UK

6A, Cubic Zirconia, Round Brilliant 8 Hearts & Arrows, Blue Topaz, 18.5mm (24ct)

Total incl. shipping: £32.15

10 pieces in stock

💎 Secure checkout • 🚚 Ships from the UK • 🔁 14-day returns

Next shipping date: Friday, January 2nd at 16:00

Why Buy from DiamondCZ?

1. Cubic Zirconia is the best diamond simulant

Despite the hype around moissanite, Cubic Zirconia remains the most realistic diamond simulant to the naked eye. Its refractive index and dispersion are closer to diamond in appearance, resulting in a more natural sparkle. Moissanite, while often marketed as a superior alternative, sparkles too intensely and shows rainbow flashes that give it away.

	Diamond	Cubic Zirconia (Closer Match)	Moissanite
Refractive Index	~2.42	~2.15 – 2.18	~2.65 – 2.69
Dispersion (Fire)	0.044	0.060	0.104

2. Quality You Can Trust

Cubic zirconia is often misrepresented. Sellers may label 1A as 3A, or send a few good 6A samples but deliver lower-quality stones in the final order. Others mix poor-quality stones in larger packs without disclosing it.

3. 20 Years of Sourcing Gemstones

DiamondCZ has partnered with expert gem cutters for over 20 years to deliver true 6A, 5A, and 3A stones. With low overheads you’re paying mostly for the gemstone.

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Category Description:

The 8 hearts and arrows cut are brilliant cut stones, but are cut to perfection, so they look even sharper and clearer. Most diamonds are not cut with hearts and arrows, only the most expensive ones are cut this way, it is the best round cut for diamonds and significantly adds to their price. These hearts and arrows cut stones can really make a difference to your jewellery. It is hard to show with photographs or video, so please buy one to compare. An ideal scope is a scope that views a diamond in a certain light. The light shows the perfection of the cut, the clearer the hearts and arrows pattern, the more perfect the cut.