Loose Cubic Zirconia Round Brilliant 13mm Warm (H-J) Highest Quality 6A

High-quality synthetic gemstone • Ships Worldwide from the UK

6A, Cubic Zirconia, 6A Quality, Round Brilliant 8 Hearts & Arrows, Warm (H-J), 13mm (8.3ct)

Total incl. shipping: £15.15

6 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:

6A cut cubic Zirconia is our highest grade of CZ, these are cut and graded to meet our 6A quality standard. This is cut with the highest quality material available on the market at the time of purchase and then cut by expert gem cutters to reach the standard of 6A. Our Warm H-J Round Brilliant Cuts are cut to meet this 6A standard and also cut to meet the hearts and arrows standard. This means that they will show a hearts and arrows pattern when viewed under a hearts and arrows viewer. The material used is the best available and the polishing is also the best available, making the most perfect round brilliant cut stone possible.