Updated as of June 2026
Dioptase
A vivid emerald green copper mineral prized by collectors for its intense color. Crystal lore connects it to the heart, forgiveness, and renewal.
Price range$30 to $300/ct
Hardness (Mohs)5
ColorsGreen, Emerald green, Blue green
BirthstoneNone
AltGems Score How we score
5.2/10
Dioptase pros and cons
Pros
- Strong value for the look
- Usually sold untreated
Cons
- Softer at Mohs 5, best in protected settings
- Quality varies widely, so compare before buying
Dioptase is best kept for earrings, pendants, and protected settings rather than rough daily wear.
Launch offer: 5% off your first necklace with code WELCOME5
Shop Dioptase jewelryReady to buy?
- Handmade in the USA
- Made to order
- Ships in 3 to 5 days
- Gift-boxed
- Satisfaction guaranteed
Explore Dioptase
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 bestDioptase jewelry
Dioptase ringsDioptase engagement ringsDioptase necklacesDioptase pendantsDioptase earringsDioptase bracelets
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.
- Setting this softer stone (Mohs 5) in an exposed daily-wear ring instead of a protective bezel or halo.
- Cleaning it the wrong way. Soft and fragile with cleavage. Clean with a barely damp soft cloth. Avoid water soaks, ultrasonic cleaners, and acids.
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Green · Mohs 5.75Where to buy Dioptase: 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 Dioptase?
A vivid emerald green copper mineral prized by collectors for its intense color. Crystal lore connects it to the heart, forgiveness, and renewal. It rates 5 on the Mohs hardness scale and commonly appears in green, emerald green, blue green.
How much does Dioptase cost?
Dioptase typically runs about $30 to $300 per carat depending on color, clarity, cut, and origin. See our Dioptase price guide for detail.
Is Dioptase good for everyday jewelry?
It rates 5 on the Mohs scale, so it suits earrings, pendants, and occasional-wear rings better than daily rough use.
What is the AltGems Score for Dioptase?
Dioptase earns an overall AltGems Score of 5.2 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 Dioptase?
Soft and fragile with cleavage. Clean with a barely damp soft cloth. Avoid water soaks, ultrasonic cleaners, and acids.