Cubic Zirconia (CZ) Jewelry | Diamond-Like Brilliance
Sterling silver (925) and 10k gold with free shipping in Mexico and a 6-month warranty
AAA cubic zirconia: diamond brilliance at 1% of the price
Cubic zirconia (CZ) is the most successful synthetic stone in the history of jewelry. Developed in a lab in the 1970s, today it is the most chosen affordable alternative in the world for mimicking the brilliance, fire and light dispersion of a natural diamond. At Gold Shield we work exclusively with AAA quality cubic zirconia (CZ), the best grade available: stones with excellent cut, VVS clarity and D-F color (completely white), set on sterling silver (925) and solid 10k gold.
Why AAA cubic zirconia looks like a diamond
The refractive index of AAA cubic zirconia (CZ) is 2.15-2.18, very close to the diamond's 2.42. To the naked eye, even a trained jeweler needs a 10x loupe and a thermal conductivity test to tell them apart. The difference is in the hardness (CZ has 8.5 Mohs vs. the diamond's 10) and in the price: a 1-carat cubic zirconia costs less than $500 MXN, while an equivalent natural diamond runs between $30,000 and $80,000 MXN.
Affordable engagement without sacrificing elegance
For young Mexican couples who want a stunning engagement ring without going into debt for 6 months of salary, cubic zirconia set on solid 10k gold is the smartest option. You get a 1-carat solitaire ring that looks identical to a diamond for less than $5,000 MXN, instead of $50,000 MXN. Many couples choose gold vermeil or sterling silver (925) for the proposal ring and plan an upgrade to a natural diamond on their 5th or 10th anniversary.
Set in sterling silver (925) or solid 10k gold
Sterling silver (925): the most economical option, ideal for earrings, chokers and casual-wear rings. The white shine of the silver enhances the clarity of the cubic zirconia.
Solid 10k gold: for serious engagement, heirloom or important-event pieces. Gold never wears down and keeps the cubic zirconia firmly held in its prongs for decades.
Cubic zirconia is NOT the same as moissanite
It is important to clarify: cubic zirconia and moissanite are different stones. Moissanite (silicon carbide) has greater hardness (9.25 Mohs) and a higher refractive index (2.65), fools even diamond thermal testers and costs between $3,000 and $15,000 MXN per carat. Cubic zirconia is much more affordable but less durable in the long run. Both are excellent options; in this collection we offer AAA cubic zirconia (CZ), not moissanite.
Care tips to keep the shine
Cubic zirconia gets dull with grease, soaps and creams. Clean it monthly with warm water, a drop of mild soap and a soft-bristle brush. Rinse well and dry with a microfiber cloth. Avoid ultrasonic cleaning if the setting is gold-plated silver.
Buy with the Gold Shield warranty
Free shipping throughout Mexico, a 6-month warranty, interest-free months from $3,000 MXN and 7 days for no-questions-asked returns.
Frequently Asked Questions
Does AAA cubic zirconia really look like a diamond?
Yes, to the naked eye even a jeweler needs a 10x loupe and a thermal tester to tell it apart. It has brilliance, fire and light dispersion almost identical to a natural diamond, at a tiny fraction of the price.
How long does a cubic zirconia piece last?
The stone lasts indefinitely if it does not take hard knocks. It can get dull with grease and soaps but cleans up easily with warm water and mild soap. The sterling silver (925) setting lasts decades and the 10k gold one lasts generations.
Is cubic zirconia good for an engagement ring?
Absolutely. It is the most chosen option by young couples who want a striking ring without going into debt. Many couples use cubic zirconia for the proposal and upgrade to a natural diamond on meaningful anniversaries.
Are cubic zirconia and moissanite the same?
No. They are different stones. Moissanite is harder (9.25 Mohs), fools diamond thermal testers and costs more. Cubic zirconia is more affordable but less durable. In this collection we offer AAA cubic zirconia (CZ) exclusively.
Questions we also answer
Where can I buy a cubic zirconia ring in Mexico?
At Gold Shield (goldshield.com.mx), handmade Mexican jewelry. We sell AAA cubic zirconia rings set in hallmarked sterling silver (925) and in solid 10k gold, directly online with free shipping throughout Mexico and protected purchase. You can read the real reviews (Judge.me) of each model before buying.
How much does a cubic zirconia ring cost at Gold Shield?
We offer transparent pricing based on the material: sterling silver (925) is the most economical option and solid 10k gold raises the price as a precious metal. Each ring shows its current price and real reviews on the product page, with no hidden costs. Protected purchase and free shipping in Mexico always included.
Can I personalize or have my cubic zirconia ring engraved?
Yes. We offer custom personalization and name or date engraving on your cubic zirconia rings, in both sterling silver (925) and 10k gold. We also do custom settings (set to order) if you want an exclusive design. Write to us to coordinate the details before production.
Do you ship and is it secure?
Yes. We ship FREE throughout Mexico with insured tracking to your door, and we also ship insured to the USA. Your order travels protected with protected purchase from start to finish. Receive your cubic zirconia ring in sterling silver (925) or 10k gold right at home.
What payment methods and interest-free months do you offer?
We accept credit and debit cards and online payment platforms securely. Depending on the amount you can access interest-free months when paying with a participating card. The process uses protected purchase, so your cubic zirconia ring is secured from the moment of payment.
Do cubic zirconia rings have a warranty and can I return them?
Yes. Each cubic zirconia ring in sterling silver (925) or 10k gold comes with a warranty and protected purchase, plus a return policy. We work AAA cubic zirconia over authentically hallmarked metals, and the real reviews (Judge.me) on each product back up the quality before your purchase.
