Yes, high‑quality Cubic Zirconia is cut to display exceptional brilliance similar to diamonds. While visually comparable, CZ differs in hardness and density; diamonds rank 10 on the Mohs hardness scale, whereas CZ ranks 8–8.5. This still makes CZ a durable and beautiful diamond alternative. 

Cubic Zirconia is created by melting zirconium oxide with stabilisers like magnesium and calcium at temperatures above 3000°C. The resulting crystals are then cut and polished to maximise brilliance. This synthetic process allows CZ to be produced in many colours and shape.

While clear CZ is the most popular, manufacturers can add trace elements during formation to achieve colours such as pink, blue, yellow, green, and lavender. This variety allows customers to enjoy vibrant gemstone‑style jewellery at an affordable price.

Cubic Zirconia is well‑suited for everyday jewellery thanks to its strong hardness rating of 8–8.5, making it resistant to scratches and ideal for daily accessories such as earrings, bracelets, and pendants. As with all stones, regular cleaning helps maintain clarity and sparkle. 

Yes CZ offers exceptional brilliance, durability, and versatility at a budget‑friendly price. With designer brands and high‑quality settings available at Ernest Jones, Cubic Zirconia jewellery delivers luxury aesthetics without the premium diamond cost. 

Cubic Zirconia can collect oils and dirt over time, which may reduce sparkle—but this is easy to correct with regular cleaning. The gemstone itself does not fade or change colour, thanks to its stable synthetic structure.