Ametrine (natural bi-color Quartz) 3.72 ct / Bolivia

$111.60 $148.80

Shipping to United States: Free

Ametrine is the naturally occurring bi-colored variety of Quartz that is only found at the Anahi Mine in Bolivia. Some material is marked as coming from Brazil, but in reality, the rough is sometimes shipped from Bolivia across the border (which is only about 40 km away) to be processed in Brazil. There is no reported discovery of Ametrine anywhere in Brazil, and the Bolivian Ametrine remains the best and frankly ONLY commercially available material on the market. The most alluring aspect of Ametrine is the fact that it shows distinct purple (AMEthyst) and yellow (ciTRINE) zoning where the purple sections are situated along the positive {r} rhombohedral faces, and the alternating yellow sections are positioned under the negative {z} rhombohedral faces. This growth forms an alternating "radiation" pattern of purple and yellow triangles when viewed down the c axis. Please visit the following link for a great example of a sliced cross section of an Ametrine crystal click here. This particular gem is a superb example of faceted Ametrine as it is not only large, but it has excellent color saturation, eye-clean clarity and unique concave faceting. The name of the cut on this stone is a "Quantum Round", and it has some extra brilliance due to the fact that the facets on the pavilion are concave and actually are cut INTO the underside of the stone. This creates a dazzling effect, and allows a gem like Quartz - which doesn't have a terribly high refractive index - to really sparkle in even moderate lighting. Rarely do we have gems with such fine clarity, beautiful distinct bi-colored appearance and unique cutting. This one would make a nice addition to any gem collection or it could be set to create a lovely piece of jewelry. It has come to my attention that the mine is not currently in production of this material and the market has quickly "dried up". Don't miss this opportunity to own a unique, colorful, large, naturally occurring gemstone that is only found in one place in the world.

Locality: Anahi Mine (Anay Mine), La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia

Weight: 3.72 cts
Size: 10.05 mm
Cut: Quantum Round
Color: Purple and yellow
Clarity: Eye Clean

Shipping from United States

Processing time

1-3 business days

Estimated shipping times

  • North America : 2 - 5 business days
  • Europe : 7 - 14 business days
  • Australia, New Zealand and Oceania : 10 - 20 business days
  • Asia Pacific : 7 - 14 business days

I'll do my best to meet these shipping estimates, but can't guarantee them. Actual delivery time will depend on the shipping method you choose.

Customs and import taxes

Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.

Payment Options

Secure options
  • Accepts Etsy gift cards

Returns & Exchanges

I gladly accept returns, exchanges, and cancellations

Just contact me within: 14 days of delivery

Ship items back to me within: 30 days of delivery

Request a cancellation within: 2 days of purchase

But please contact me if you have any problems with your order.

The following items can't be returned or exchanged

Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:

  • Custom or personalized orders

Conditions of return

Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.

Questions about your order?

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