This "Oval Brilliant" cut gem has a gorgeous green hue with a very slight golden-yellow overtone. The stone is only very slightly included which is common from this locality, as it's almost impossible to find a stone over 1 carat that is completely clean.
On a worldwide level, gem grade Sphalerite is not common. Keep in mind that Sphalerite is a sulfide, and most sulfide species are always opaque. Sphalerite from Colorado is rarely seen in faceted gems, as the majority of mines produced only opaque black material. The lesser known Big Four Mine in Summit County was the source of some of the best gem grade Sphalerite from any mine in Colorado, producing stones that ranged from deep orange and brown hues to yellows, and highly sought after GREEN stones! In the early 2000s a small discovery was made of gem grade Sphalerite on the dumps of the Big Four Mine in Colorado. This gem was only recently faceted from a stash of rough that we found in an old collection.
Locality: Big Four Mine, Summit County, Colorado, USA
Weight: 1.21 cts
Size: 7.78 x 5.58 mm
Cut: Oval Brilliant
Shipping from United States
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.
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
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?
Please contact me if you have any problems with your order.
Last updated 3 July 2022.
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