Diamond vs. Cubic Zirconia: Which Stone Is Right for You?

What is the difference between diamond and cubic zirconia?

Diamonds are natural gemstones — formed from carbon under extreme pressure and temperature deep within the earth. They are unique in color, size, and clarity, extremely hard and durable. Cubic zirconia is a synthetic crystal that is artificially manufactured and has a similar brilliance to diamond but is less hard and durable. The biggest difference: diamond is an investment for life, cubic zirconia is an affordable and beautiful alternative. View our cubic zirconia jewelry collection for all options.

Diamond: the natural gemstone

Diamonds are mined from the earth and each is unique in color, size, and clarity. They are among the hardest materials in the world (10 on the Mohs scale), making them extremely resistant to scratches and wear. Due to their hardness, diamonds can be cut sharply for unparalleled brilliance. The quality of a diamond is determined by the four C's: cut, color, clarity, and carat weight. The higher the score on each of these factors, the more valuable the diamond.

Cubic zirconia: the affordable alternative

Cubic zirconia (CZ) is a synthetic crystal made from zirconium dioxide. It has a high refractive index that provides a beautiful sparkle — comparable to diamond to the naked eye. Cubic zirconia is significantly cheaper than diamond and therefore accessible to everyone. The disadvantage: cubic zirconia is less hard (8.5 on the Mohs scale) and can become duller over time. However, with proper maintenance, cubic zirconia will last a long time and remain beautiful. View our crystal jewelry collection for more options.

Diamond vs. cubic zirconia: the key differences

• Hardness — Diamond: 10 (hardest material in the world). Cubic zirconia: 8.5 (good, but more vulnerable to scratches).
• Origin — Diamond: naturally formed. Cubic zirconia: artificially manufactured.
• Price — Diamond: high due to rarity and durability. Cubic zirconia: affordable alternative.
• Durability — Diamond: retains brilliance forever. Cubic zirconia: can become duller after years.
• Appearance — Both sparkle beautifully; barely distinguishable to the naked eye.

When do you choose cubic zirconia?

Cubic zirconia is an excellent choice if you are looking for affordable jewelry with a beautiful sparkle — for everyday wear, as a gift, or as an addition to your jewelry collection. Our cubic zirconia earrings and necklaces offer the brilliance of diamond at a fraction of the price. Combine them with an elegant silver necklace for a complete, stylish look.

Frequently asked questions about diamond and cubic zirconia

What is the biggest difference between cubic zirconia and diamond?

The biggest difference is hardness and durability. Diamond is the hardest material in the world and retains its brilliance forever. Cubic zirconia is less hard and can become duller over time, but is significantly cheaper.

Do cubic zirconia and diamond sparkle equally?

To the naked eye, they are barely distinguishable. Cubic zirconia has a high refractive index and sparkles beautifully. In the long run, however, cubic zirconia will become slightly duller than diamond due to the difference in hardness.

What are the four C's of diamonds?

The four C's are: cut, color, clarity, and carat weight. These factors together determine the quality and value of a diamond.

Why are diamonds more expensive than cubic zirconia?

Diamonds are rare, natural gemstones that take millions of years to form. Cubic zirconia is artificially manufactured in a controlled process, making it much cheaper.

Is cubic zirconia a good choice for jewelry?

Yes, cubic zirconia is an excellent choice for affordable jewelry with a beautiful sparkle. With proper care — store dry, avoid chemicals — cubic zirconia will last a long time and remain beautifully sparkling.