20.77ct MUSEUM QUALITY MONTANA SAPPHIRE ROUGH CRYSTAL SPECIMEN
SKU: 76545055606

20.77ct MUSEUM QUALITY MONTANA SAPPHIRE ROUGH CRYSTAL SPECIMEN

Sale price$9000.00 Regular price$10000.00
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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Description

20.77ct MUSEUM QUALITY MONTANA SAPPHIRE ROUGH CRYSTAL SPECIMENThis sapphire is a museum quality super rare all natural perfect crystal. It is double terminated with natural hexagon crystal structure. This stone is Facet grade with a beautiful medium blue green natural color. A one of a kind piece completely irreplaceable. Montana sapphires of this size shape and clarity are almost never seen it would be a shame to facet this stone even though it is facet grade. It was mined in the 2018 mining season from blaze n

This sapphire is a museum quality super rare all natural perfect crystal. It is double terminated with natural hexagon crystal structure. This stone is Facet grade with a beautiful medium blue green natural color. A one of a kind piece completely irreplaceable. Montana sapphires of this size shape and clarity are almost never seen it would be a shame to facet this stone even though it is facet grade. It was mined in the 2018 mining season from blaze-n-gems eldorado bar mine just outside of Helena Montana off the missori river. This sapphire would enhance any collection one of the best and biggest crystals we've ever unearthed from our mine. This is the only sapphire of this caliber for sale. This stone has received no treatment of any kind it is all natural just as mother nature gave it to us.

Size: 20.77ct

Dimensions: 12.9x11.9x11.0mm

Color: Blue-Green 

Clarity: vs

Stone: Sapphire

Hardness: 9

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 76545055606

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Dupre'
Phoenix, US
★★★★★ 5
Sound Barrier
Style: Tech Pack 28 sqft
Easy to install and work with
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Reviewed in the United States on March 18, 2026
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Jacob Nicholas
Louisville, US
★★★★★ 5
Good buy.
Style: Tech Pack 28 sqft
Perfect amount for small suv. Easy to install once panels are off. Great product.
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Reviewed in the United States on January 22, 2026
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Bob
Omaha, US
★★★★★ 5
Passively quiet your cars interior!
Style: Tech Pack 28 sqft
This stuff is the industry standard! Does exactly what it is supposed to.
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Reviewed in the United States on October 29, 2025
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jon r sobon
Grantham, US
★★★★★ 5
High quality product
Style: Tech Pack 28 sqft
Great product, very easy to work with. Stopped the rattling, definitely sticks when rolled to panels.
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Reviewed in the United States on September 28, 2025
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Mary Hughes
Pawtucket, US
★★★★★ 3
Generally happy
Style: Tech Pack 28 sqft, Style: Tech Pack 28 sqft
Much thinner than I expected, but installation went better than I'd thought it would. Needed to line the interior of the engine cover of a Ford E450 RV. Tried nitrile gloves, but they stuck to the material so did it bare handed. Cut easily with a fresh razor blade. Pressed in place with a plastic putty knife. We'll see the effectiveness on the next trip.
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Reviewed in the United States on July 3, 2025

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