Updated as of June 2026
Cubic Zirconia
An inexpensive lab-created diamond simulant valued for its sparkle and wide range of colors. Not the same as natural zircon.
Price range$1 to $30/ct
Hardness (Mohs)8.25
ColorsColorless, Multicolor
BirthstoneNone
AltGems Score How we score
7.6/10
Cubic Zirconia pros and cons
Pros
- Excellent durability (Mohs 8.25) for everyday wear
- Exceptional brilliance and sparkle
- Strong value for the look
Cons
- Commonly treated (lab-grown (fully synthetic))
- Quality varies widely, so compare before buying
Cubic Zirconia is durable enough for engagement rings and daily-wear jewelry of every kind.
Explore Cubic Zirconia
Meaning and properties
Symbolism, zodiac, chakraPrice and value
What it costs and whyBuying guide
How to choose and where to buyCare and cleaning
Keep it looking its bestCubic Zirconia jewelry
Cubic Zirconia ringsCubic Zirconia engagement ringsCubic Zirconia necklacesCubic Zirconia pendantsCubic Zirconia earringsCubic Zirconia bracelets
Cubic Zirconia by cut
Round Cubic ZirconiaOval Cubic ZirconiaEmerald Cut Cubic ZirconiaCushion Cubic ZirconiaPrincess Cubic ZirconiaPear Cubic ZirconiaAll cuts
Cubic Zirconia ring styles
Cubic Zirconia solitaire ringCubic Zirconia halo ringCubic Zirconia three stone ringCubic Zirconia hidden halo ringCubic Zirconia vintage and antique ringCubic Zirconia bezel ringAll styles
Cubic Zirconia by metal
Cubic Zirconia in yellow goldCubic Zirconia in white goldCubic Zirconia in rose goldCubic Zirconia in platinumCubic Zirconia in sterling silver
Common buying mistakes
- Buying on carat weight alone instead of color and cut, which drive beauty more.
- Skipping treatment disclosure, which changes both value and care.
- Overpaying at one retailer without comparing the same color and carat elsewhere.
- Cleaning it the wrong way. Durable for the price. Clean with warm soapy water and a soft brush. Avoid harsh chemicals that can dull the surface.
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Where to buy Cubic Zirconia: for fine pieces, choose established jewelers with clear return policies and lab reports; for unique or budget pieces, vetted marketplace sellers work well. Always confirm treatment and the return window before buying. AltGems prices are general per-carat guides, so verify value with a certified gemologist or GIA report.
Frequently asked questions
What is Cubic Zirconia?
An inexpensive lab-created diamond simulant valued for its sparkle and wide range of colors. Not the same as natural zircon. It rates 8.25 on the Mohs hardness scale and commonly appears in colorless, multicolor.
How much does Cubic Zirconia cost?
Cubic Zirconia typically runs about $1 to $30 per carat depending on color, clarity, cut, and origin. See our Cubic Zirconia price guide for detail.
Is Cubic Zirconia good for everyday jewelry?
Yes. At Mohs 8.25 it is durable enough for rings and daily wear with normal care.
What is the AltGems Score for Cubic Zirconia?
Cubic Zirconia earns an overall AltGems Score of 7.6 out of 10, balancing durability, brilliance, value, rarity, and everyday wearability. See our methodology on the How We Score page.
How do I care for Cubic Zirconia?
Durable for the price. Clean with warm soapy water and a soft brush. Avoid harsh chemicals that can dull the surface.