Just sold
·
Origin
Minas Gerais, Brazil
Mohs hardness
7
/ 10
12345678910
Fingernail (2.5)
Steel knife (5.5)
Diamond (10)
Stone properties
What this stone is, geologically
- Crystal system
- Trigonal (quartz group)
- Mohs hardness
- 7
- Specific gravity
- 2.65
- Refractive index
- 1.544–1.553
- Transparency
- Transparent to translucent
- Durability
- Excellent — daily-wear safe
Macrocrystalline silica forming in pegmatites and hydrothermal cavities. Coloration arises from trace iron, aluminum, or oriented inclusions.
The lot
Full description
A hand-graded 6-piece lot of cabochons of dendritic quartz from Minas Gerais, Brazil, calibrated to the 21–34 mm working range. Sold as one curated lot, weighed in carats, treatments disclosed.
About this lot
Origin: Minas Gerais, Brazil.
Lot: Curated 6-piece selection sold as a single unit. Total weight approximately 230 ct, hand-photographed exactly as shipped — you receive the stones in the photograph, no substitution.
Size: 21–34 mm.
Weight: 230 ct total (entire lot).
Treatment: None. 100% natural, untreated material. Disclosed on every listing — that's the Atlas standard.
Suggested use
Cabochon settings, lapidary work, or studio display. Durable (Mohs 7).
The Stone Atlas standard
Hand-graded in our US studio. Treatments disclosed on every listing, no exceptions. Shipped insured from the US since 1995. Returns within 14 days if the stone in hand doesn't match the listing.
Shipping & returns
- Ships: from the US within 1–2 business days.
- Insurance: tracked, insured for full declared value, no signature required under $1,000.
- Returns: 30 days from delivery if the stone in hand doesn't match the listing — we cover return shipping.
Common questions
About this stone.
Is this stone treated?
No. This Dendritic Quartz is 100% natural with no heat, diffusion, dyeing, or fracture-filling treatment. We disclose treatment on every listing without exception — when it says "untreated," it is.
Where is this stone from?
This piece is from Minas Gerais, Brazil.When we know the specific city or mine, we tag it on every listing. When the supplier chain is generalized, we mark it "most likely from" rather than fabricate a precise origin.
Can I see a GIA certificate?
Yes. GIA certification is available as a $95 add-on after checkout. Request it once your order ships — we'll send the stone to GIA on your behalf and forward the certificate when it arrives (typically 3–4 weeks).
What's your return policy?
Every stone comes with a 30-day inspection window. If the stone doesn't match the listing or you simply don't love it, return it within 30 days of delivery for a full refund. We cover return shipping. No restocking fees, no questions.
How long does shipping take?
Orders ship from the US within 1–2 business days. Domestic US delivery is typically 2–5 business days via USPS Priority or UPS Ground, tracked end-to-end and insured for the full declared value. International shipping is available at checkout.
Is the size in the listing exact?
Listed size for this piece: 21–34 mm. Listed weight: 230 ct ct. All sizes and weights are hand-measured. If a stone arrives outside the listed tolerance, return it within 30 days for a full refund.
Can I see this stone in different lighting before I buy?
Yes. Use the "Ask the Atlas desk" button on this page to request additional photos under daylight, lamp light, or any specific condition. We typically reply within one business day with photos attached.
What if I'm a jeweler — do you offer wholesale?
For working jewelers and lapidary studios placing recurring orders, contact us through the Atlas desk to discuss volume pricing. For one-off custom commissions, the listed prices already reflect hand-graded quality at a fair retail tier.
4.8 out of 5
38 verified buyers
What buyers say
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Mason
Tokyo Japan
Real natural inclusions, just like the listing said
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Maya
Cape Town South Africa
Compared this to two others I bought from competitors. Clearly better saturation. Stone Atlas is now my go-to
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Eleni
Carmel CA
Tracking notifications were perfect. Always knew where my order was
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Aiko
Dublin Ireland
Used this for a lapidary class — perfect for what we needed
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Diego
Oslo Norway
Beautiful stone. Treatment was disclosed up front, exactly as the listing said. That kind of honesty is rare in this trade
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Adwoa
Tel Aviv Israel
Photos don't do this justice. Even better in hand
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Ava
Sedona AZ
Beautiful. Will order again
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Wyatt
Montréal Canada
Stone is exactly the size and weight described
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Pieter
Amsterdam Netherlands
Beautiful color in natural light. Lamp light brings out a different character
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Giulia
Sydney Australia
Arrived faster than expected, tracked the whole way. The kraft box with the wax seal is a beautiful touch
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Carlos
Boulder CO
Atlas standard is real. Treatment honesty matters
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Kofi
Lexington KY
Set this into a pendant for my partner. They love it
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Ethan
Florence Italy
Beautiful piece. Couldn't be happier
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Evelyn
Taipei Taiwan
The shipping was insured and tracked end-to-end. Felt safe ordering
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Lukas
Asheville NC
Bought this for a custom ring setting. The depth of color is gorgeous and the size is perfect
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Hugo
Park City UT
Will be back for more. Quality is consistent
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Kenji
Munich Germany
My third order from the Atlas. Consistency is excellent
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Yasmin
Kyoto Japan
Worth every dollar. Real natural stone, no funny business
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Olivia
Marrakech Morocco
Origin was tagged to the city. Appreciate that level of provenance detail
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Henry
Bend OR
I've ordered from a lot of online gemstone dealers — this is the first time the stone matched the listing photo
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Cora
Paris France
Highly recommend
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Anja
Helsinki Finland
Smaller than I imagined but quality is high — exactly as listed
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Anjali
São Paulo Brazil
Fast shipping, beautiful packaging, accurate listing. What more can you ask
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Ahmed
Taos NM
Bought as a 10-year anniversary gift. Stunning
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Marcus
London UK
The 30-day inspection window made me comfortable ordering at this price point. Didn't need to use it
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Charlotte
Brussels Belgium
Exactly what I needed for my project
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Theo
Melbourne Australia
Working on a custom necklace; this is the centerpiece
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Margot
Madison WI
Lovely stone, lovely service. I'll order again
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Hiroshi
Portland ME
Perfect for a setting I'm working on
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Catalina
Barcelona Spain
GIA certificate option was the deciding factor. Beautiful natural stone
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Aisha
Mumbai India
The provenance information was thorough and honest
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Liam
Bozeman MT
First gemstone purchase online. Won't be the last
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Eliza
Jackson WY
Real provenance, real disclosure. The Atlas standard is a real standard
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Lucia
Vienna Austria
Beautiful work, beautiful packaging
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Astrid
Seoul Korea
Hand-graded, exactly as promised. Some natural inclusions only visible with a loupe
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Camila
Portland OR
Five stars without hesitation
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Amara
Chapel Hill NC
Treatment honesty is genuinely refreshing in this trade. Stone arrived perfectly
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Sophia
Lyon France
Exactly as described. Color is even better in person than the photo
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