• Best Price Promise
  • FREE SHIPPING OVER $95 – FREE OVERNIGHT OVER $1000
  • Ethically-Sourced
  • 100% Satisfaction Guarantee
  • Lifetime Warranty
  • Hassle-Free Returns

Cubic Zirconia

[kyoo-bik] [zur-koh-nee-uh]

Cubic Zirconia

[kyoo-bik] [zur-koh-nee-uh]

When viewed under shortwave UV, cubic zirconia fluoresces a yellow, greenish or beige color. Conversely when viewed under longwave UV, the color diminishes showing a white glow.

Shop Related Jewelry Speak With A Specialist

Origin

Cubic Zirconia is produced around the world in a laboratory setting.

History

Cubic Zirconia is the sparkling fashion alternative to diamonds, commonly known as CZ's. Natural CZ was discovered in 1892 as the mineral Baddeleyite. The diamond simulant, most commonly known today, was introduced in 1929 with commercial production beginning in 1976. By 1980, the annual global production reached over 50 million carats.

Fashion

If you love the look of a diamond, but your budget doesn’t allow for it, a cubic zirconia is a great substitution. Cubic zirconia’s come in other colors beside from white, like pink, green, yellow, and blue. You can sparkle everyday with a beautiful cubic zirconia, and not feel guilty! CZ’s go with ANY outfit, a great purchase to add to your jewelry collection.

Formation

Chemically speaking cubic zirconia is the lab created crystal formation of the chemical, zirconium dioxide.

Cleaning & Care

Cubic zirconia can be easily cleaned at home with warm soapy water and a soft brush. It can also be cleaned using an ultrasonic cleaner. Be careful to avoid harsh chemicals when wearing cubic zirconia jewelry. Gemstone Cleaning and Care Guide >

Treatments

Cubic zirconia is never treated.

MOH'S Hardness

8.0 - 8.5

Scratch resistance through the ability of a harder material to scratch a softer material.

Specific Gravity

5.6 - 6.0

The relation between the density of any substance and the density of water.

Refractive Index

2.15 - 2.18

The ratio of the velocity of light in a vacuum to its velocity in a specified medium.

HASSLE FREE RETURNS

If for any reason you are not 100% satisfied with your purchase within 30 days of receipt, you may return any merchandise that has not been altered, engraved or customized for a refund, credit or exchange. Merchandise returned must be in its original condition. Any purchase made with a credit card must be returned to the original credit card. Please read more about our Returns and Exchanges Policy.

FREE SHIPPING OVER $95 – FREE OVERNIGHT OVER $1000

All orders shipped UPS are fully insured and require a signature at time of delivery unless shipped by USPS. Each item is cleaned, polished and inspected before it is wrapped and shipped to you. Orders over $1,000 enjoy free overnight shipping via UPS. For engravings and ring sizing, please add an additional 2-3 business days to your order. Special orders or customizations may take 3-4 weeks. Please read more for full shipping information.

ETHICALLY-SOURCED

Day's Jewelers requires suppliers to provide a written warranty for every diamond purchased stating that it was ethically-sourced. Furthermore, as a certified member of the Responsible Jewellery Council, Day's is committed to supporting and promoting the highest level of social, ethical and environmental responsibility in our communities and in the areas of the world where our products are sourced. Discover the Day's Promise.

100% SATISFACTION GUARANTEE

If for any reason you are not 100% satisfied with your purchase within 30 days of receipt, you may return any merchandise that has not been altered, engraved or customized for a refund, credit or exchange. Merchandise returned must be in its original condition.

LIFETIME WARRANTY

Your jewelry purchased from Day's Jewelers is warranted for a lifetime against defects in materials and craftsmanship. To be eligible for this warranty, your piece of jewelry must be inspected at any Day's store at least once every six months. If you should live in an area where there is no Day's store located, we would be happy to recommend a reputable jeweler to perform the required semi-annual inspections. Day's also offers a low cost extended care plan that covers normal wear and tear of items not deemed as defective.

BEST PRICE PROMISE

Day's adheres to an everyday low price policy so you can always shop knowing you’re getting the best price possible from an authorized retailer.