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A rare stone, hackmanite. It has a mysterious characteristic: when exposed to black light for about 5 to 10 seconds, it changes to a pale purple color, and for a while, it does not return to its original color. It is a relatively new type of rare stone discovered in the Kola Peninsula, Russia, in the 1980s. Due to its low hardness, care must be taken not to hit it against hard objects.
Cut by Mr. Sanje
・Type: Loose stone (natural stone)
・Stone name: Hackmanite
・Weight: 0.300 ct
・Size: 5.5 x 3.7 mm
・Shape: Emerald cut
・Scratches/Chips: S
・Inclusions: A
・Remarks: ---
・Accessories: Identification report (JTL (Jewelry Trading Laboratory)), loose stone case (if it doesn't fit, a clear case with a zip)
▷Jewelry processing available
If you wish to have jewelry processed, please order with your desired setting from the link below.
・【Select from stone】Simple Order
・【Select from stone】Semi-Order
*If you would like an image of the stone on a setting, wish to consult about a full custom order, or have any other questions, please feel free to contact us here.
*Rough stones are not eligible. Also, some stones may not be eligible.
※ We strive to ensure that the photos are the same color as the actual product, but due to the lighting conditions during shooting and your monitor environment, there may be slight differences from the actual product. Also, some photos may be taken using a penlight.
※ For products with UV fluorescence photos, we use a 365nm black light for shooting. If you use a light with a different wavelength (e.g., around 395nm), the fluorescence may appear weak or be difficult to confirm. The black light we use is here.
※ For information on scratches/chips, treatments, and inclusions, please see here.
※ For other frequently asked questions, please see here.
karatz_item_id: 12564020
・Type: Loose stone (natural stone)
・Stone name: Hackmanite
・Weight: 0.300 ct
・Size: 5.5 x 3.7 mm
・Shape: Emerald cut
・Scratches/Chips: S
・Inclusions: A
・Remarks: ---
・Accessories: Identification report (JTL (Jewelry Trading Laboratory)), loose stone case (if it doesn't fit, a clear case with a zip)
▷Jewelry processing available
If you wish to have jewelry processed, please order with your desired setting from the link below.
・【Select from stone】Simple Order
・【Select from stone】Semi-Order
*If you would like an image of the stone on a setting, wish to consult about a full custom order, or have any other questions, please feel free to contact us here.
*Rough stones are not eligible. Also, some stones may not be eligible.
※ We strive to ensure that the photos are the same color as the actual product, but due to the lighting conditions during shooting and your monitor environment, there may be slight differences from the actual product. Also, some photos may be taken using a penlight.
※ For products with UV fluorescence photos, we use a 365nm black light for shooting. If you use a light with a different wavelength (e.g., around 395nm), the fluorescence may appear weak or be difficult to confirm. The black light we use is here.
※ For information on scratches/chips, treatments, and inclusions, please see here.
※ For other frequently asked questions, please see here.
karatz_item_id: 12564020
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[Listed as 12564020] Hackmanite 0.300ct Loose Stone
Sale price¥59,800
Regular price



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