All sellers on Gem Rock Auctions must comply with our Verified Sellers program which ensures a high degree of industry knowledge, consistent refund policy and wholesale pricing.
The Gemstone Sheriff program allows our members to request an audit on any auction, which is completed by an independent gemologist who assesses the accuracy of the item description and pictures.
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![2.70 CTS FACETED FIREY SPHALERITE POLISHED-SPAIN [STS 553]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/640000-644999/640559/58bdf41be8eb5_260x208.jpg)
![2.15 CTS FACETED FIREY SPHALERITE POLISHED-SPAIN [STS 554]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/640000-644999/640561/58bdf484a8abd_260x208.jpg)
![3.00 CTS FACETED FIREY SPHALERITE POLISHED-SPAIN [STS 555]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/640000-644999/640562/58bdf4a18bf07_260x208.jpg)
![1.10 CTS FACETED FIREY SPHALERITE POLISHED-SPAIN [STS 556]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/640000-644999/640563/58bdf4e44098a_260x208.jpg)
![29.0 CTS SPHALERITE- -SPAIN [F5190 ]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/425000-429999/428268/53a376ec93291_260x208.JPG)
![4.55 CTS FACETED FIREY SPHALERITE POLISHED-SPAIN [STS 558]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/640000-644999/640565/58bdf787e81be_260x208.jpg)
![2.30 CTS FACETED FIREY SPHALERITE POLISHED-SPAIN [STS 559]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/640000-644999/640566/58bdf78f73f98_260x208.jpg)
![1.05 CTS FACETED FIREY SPHALERITE POLISHED-SPAIN [STS 561]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/640000-644999/640568/58bdf79d19684_260x208.jpg)
![3.50 CTS FACETED FIREY SPHALERITE POLISHED-SPAIN [STS 562]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/640000-644999/640569/58bdf7a6efcfa_260x208.jpg)
![7.00 CTS FACETED FIREY SPHALERITE POLISHED-SPAIN [STS 563]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/640000-644999/640570/58bdf7d725e67_260x208.jpg)
![22.40 CTS Cabochon FIREY SPHALERITE POLISHED-SPAIN [STS 565]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/640000-644999/640572/58bdf8faeafda_260x208.jpg)
![28.16 CTS SPHALERITE SPECIMEN ROUGH -SPAIN [ST8027]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/405000-409999/405672/5306b76b8f2a3_260x208.JPG)
![37.75 CTS SPHALERITE SPECIMEN POLISHED-SPAIN [ST8224]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/410000-414999/413177/5338cc938aabc_260x208.JPG)
![70.86 CTS SPHALERITE SPECIMEN POLISHED-SPAIN [ST8231]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/410000-414999/413184/5338ce386c829_260x208.JPG)
![CTS SPHALERITE- -SPAIN [F5185 ]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/425000-429999/428258/53a374d212221_260x208.JPG)
![21.5 CTS SPHALERITE- -SPAIN [F5195 ]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/425000-429999/428278/53a3788d62a09_260x208.JPG)
![48.67 CTS SPHALERITE SPECIMEN POLISHED-SPAIN [ST8032]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/405000-409999/405678/5306b9ca7cf2e_260x208.JPG)
![45.9 CTS SPHALERITE- -SPAIN [F5198 ]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/425000-429999/428294/53a397f0c55d7_260x208.JPG)
![36.24 CTS SPHALERITE SPECIMEN POLISHED-SPAIN [ST8036]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/405000-409999/405684/5306bcecd49d4_260x208.JPG)
![37.1 CTS SPHALERITE- -SPAIN [F5183 ]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/425000-429999/428254/53a37454e3e3b_260x208.JPG)
![11.8 CTS SPHALERITE- -SPAIN [F5196 ]](https://ec89800b15d91130329a-4253e8b1564fd6da7d45e99fa0be70ae.ssl.cf1.rackcdn.com/cache/uploads/images/425000-429999/428280/53a379c837e3c_260x208.JPG)
