Updated as of June 2026
Smoky Quartz
A smoky brown quartz traditionally used as a grounding and protective stone that helps release stress.
Price range$3 to $50/ct
Hardness (Mohs)7
ColorsBrown, Gray, Smoky, Black
BirthstoneNone
AltGems Score How we score
6.6/10
Smoky Quartz pros and cons
Pros
- Good durability (Mohs 7) for most jewelry
- Strong value for the look
Cons
- Commonly treated (irradiation (some stones))
- Quality varies widely, so compare before buying
Smoky Quartz is ideal for earrings, pendants, and occasional-wear rings, and works in everyday rings with a protective setting.
Explore Smoky Quartz
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 bestSmoky Quartz jewelry
Smoky Quartz ringsSmoky Quartz engagement ringsSmoky Quartz necklacesSmoky Quartz pendantsSmoky Quartz earringsSmoky Quartz bracelets
Smoky Quartz by cut
Round Smoky QuartzOval Smoky QuartzEmerald Cut Smoky QuartzCushion Smoky QuartzPrincess Smoky QuartzPear Smoky QuartzAll cuts
Smoky Quartz ring styles
Smoky Quartz solitaire ringSmoky Quartz halo ringSmoky Quartz three stone ringSmoky Quartz hidden halo ringSmoky Quartz vintage and antique ringSmoky Quartz bezel ringAll styles
Smoky Quartz by metal
Smoky Quartz in yellow goldSmoky Quartz in white goldSmoky Quartz in rose goldSmoky Quartz in platinumSmoky Quartz 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 but color can lighten in strong sunlight. Clean with warm soapy water and a soft brush. Avoid prolonged light.
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Where to buy Smoky Quartz: 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 Smoky Quartz?
A smoky brown quartz traditionally used as a grounding and protective stone that helps release stress. It rates 7 on the Mohs hardness scale and commonly appears in brown, gray, smoky, black.
How much does Smoky Quartz cost?
Smoky Quartz typically runs about $3 to $50 per carat depending on color, clarity, cut, and origin. See our Smoky Quartz price guide for detail.
Is Smoky Quartz good for everyday jewelry?
It rates 7 on the Mohs scale, so it suits earrings, pendants, and occasional-wear rings better than daily rough use.
What is the AltGems Score for Smoky Quartz?
Smoky Quartz earns an overall AltGems Score of 6.6 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 Smoky Quartz?
Durable but color can lighten in strong sunlight. Clean with warm soapy water and a soft brush. Avoid prolonged light.