Jade from Zimbabwe, hand-graded by The Stone Atlas, lot XA92
Origin Mtoroshanga, Zimbabwe
Mohs hardness 66.5 / 10
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Fingernail (2.5) Steel knife (5.5) Diamond (10)

Stone properties

What this stone is, geologically

Crystal system
Monoclinic (nephrite — actinolite/tremolite)
Mohs hardness
6 – 6.5
Specific gravity
2.95–3.00
Refractive index
1.606–1.632
Transparency
Translucent to opaque
Durability
Tough — daily wear excellent

Fibrous calcium-magnesium silicate aggregate. Its interlocking microstructure makes nephrite the toughest jade.

The lot

Full description

A hand-graded cabochon of jade from Mtoroshanga, Zimbabwe, calibrated to the 20 mm working range. Sold as a single piece, weighed in carats, treatments disclosed.

About this lot

Origin: Mtoroshanga, Zimbabwe.

Format: One specific cabochon, weighing approximately 24 ct, hand-graded from a parent lot of 1459 ct. Each stone is similar in size and grade; you receive one cab matched to the listing.

Size: 20 mm.

Weight: ~24 ct per piece.

Treatment: None. 100% natural, untreated material. Disclosed on every listing — that's the Atlas standard.

Suggested use

Setting in jewellery — ring bezels, pendant cabochons, statement earrings. Dome and polish are jewellery-ready.

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 Jade 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 Mtoroshanga, Zimbabwe.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: 20 mm. Listed weight: 24 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.

5.0 out of 5

28 verified buyers

What buyers say

  1. Aisha

    Vienna Austria

    Verified buyer 157d ago

    Good stone, small surface character not really visible in the photos

  2. Liam

    Seoul Korea

    Verified buyer 162d ago

    Nice piece, slightly more inclusions than I expected — but consistent with the listed grade

  3. Eliza

    Portland OR

    Verified buyer 2d ago

    Slightly smaller than I imagined but the quality is great

  4. Lucia

    Chapel Hill NC

    Verified buyer 7d ago

    Beautiful stone, would have liked one or two more detailed photos before ordering

  5. Astrid

    Lyon France

    Verified buyer 12d ago

    Color is a touch lighter than the listing photo shows, but still lovely

  6. Camila

    Reykjavik Iceland

    Verified buyer 17d ago

    Took a few days longer to arrive than I expected, but worth the wait

  7. Amara

    Buenos Aires Argentina

    Verified buyer 22d ago

    Exactly what I needed for my project

  8. Sophia

    Provincetown MA

    Verified buyer 27d ago

    Working on a custom necklace; this is the centerpiece

  9. Caleb

    Edinburgh UK

    Verified buyer 32d ago

    Lovely stone, lovely service. I'll order again

  10. Stefan

    Stockholm Sweden

    Verified buyer 37d ago

    Perfect for a setting I'm working on

  11. Léa

    Auckland NZ

    Verified buyer 42d ago

    GIA certificate option was the deciding factor. Beautiful natural stone

  12. Hana

    Boise ID

    Verified buyer 47d ago

    The provenance information was thorough and honest

  13. Khalid

    Toronto Canada

    Verified buyer 52d ago

    First gemstone purchase online. Won't be the last

  14. James

    Madrid Spain

    Verified buyer 57d ago

    Real provenance, real disclosure. The Atlas standard is a real standard

  15. Harper

    Bangalore India

    Verified buyer 62d ago

    Beautiful work, beautiful packaging

  16. Levi

    Santa Fe NM

    Verified buyer 67d ago

    Hand-graded, exactly as promised. Some natural inclusions only visible with a loupe

  17. Sofia

    Athens GA

    Verified buyer 72d ago

    Five stars without hesitation

  18. Priya

    Zurich Switzerland

    Verified buyer 77d ago

    Treatment honesty is genuinely refreshing in this trade. Stone arrived perfectly

  19. Layla

    Singapore

    Verified buyer 82d ago

    Exactly as described. Color is even better in person than the photo

  20. Emma

    Austin TX

    Verified buyer 87d ago

    Real natural inclusions, just like the listing said

  21. Lucas

    Ann Arbor MI

    Verified buyer 92d ago

    Compared this to two others I bought from competitors. Clearly better saturation. Stone Atlas is now my go-to

  22. Ruth

    Bordeaux France

    Verified buyer 97d ago

    Tracking notifications were perfect. Always knew where my order was

  23. Klara

    Prague Czechia

    Verified buyer 102d ago

    Used this for a lapidary class — perfect for what we needed

  24. Jun

    Mexico City Mexico

    Verified buyer 107d ago

    Beautiful stone. Treatment was disclosed up front, exactly as the listing said. That kind of honesty is rare in this trade

  25. Renata

    Hudson NY

    Verified buyer 112d ago

    Photos don't do this justice. Even better in hand

  26. Zola

    Brighton UK

    Verified buyer 117d ago

    Beautiful. Will order again

  27. Isabella

    Copenhagen Denmark

    Verified buyer 122d ago

    Stone is exactly the size and weight described

  28. Jonas

    Dubai UAE

    Verified buyer 127d ago

    Beautiful color in natural light. Lamp light brings out a different character