


















[Posted on 12563864] Australian Black Opal 1.797ct Loose Stone
Opal is a gemstone characterized by the shimmering play of iridescent light. There are several types of opals, but among them, the red fire flickering within the jet-black darkness of a black opal is mesmerizingly beautiful. The body color can be black, blue, or gray. The photographs were taken using a penlight.
This is a black opal from Lightning Ridge, Australia, with a beautiful play of color. It comes with a鑑別書 (identification certificate).
・Type: Loose Stone (Natural Stone)
・Stone Name: Australian Black Opal
・Weight: 1.797ct
・Size: 11.5×8.7㎜
・Shape: Cabochon Cut
・Scratches/Chips: S
・Inclusions: -
・Remarks: ---
・Accessories: Identification certificate (JTL (Jewelry Trading Laboratory)), loose stone case (clear zip case if it doesn't fit)
▷Jewelry Customization Available
If you would like to customize your jewelry, please order it along with your desired setting from the link below.
・【Choose Your Stone】Simple Order
・【Choose Your Stone】Semi-Order
*If you would like an image of the stone on a setting, want to discuss 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 for customization.
※ While we strive to ensure the photos accurately represent the actual color, due to lighting conditions during photography and your monitor environment, there may be slight differences in appearance. Also, some photos may have been taken using a penlight.
※ For products with UV fluorescence photos, a 365nm wavelength black light is used for photography. 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 refer to here.
※ For other frequently asked questions, please refer to here.
karatz_item_id: 12563864
This is a black opal from Lightning Ridge, Australia, with a beautiful play of color. It comes with a鑑別書 (identification certificate).
・Type: Loose Stone (Natural Stone)
・Stone Name: Australian Black Opal
・Weight: 1.797ct
・Size: 11.5×8.7㎜
・Shape: Cabochon Cut
・Scratches/Chips: S
・Inclusions: -
・Remarks: ---
・Accessories: Identification certificate (JTL (Jewelry Trading Laboratory)), loose stone case (clear zip case if it doesn't fit)
▷Jewelry Customization Available
If you would like to customize your jewelry, please order it along with your desired setting from the link below.
・【Choose Your Stone】Simple Order
・【Choose Your Stone】Semi-Order
*If you would like an image of the stone on a setting, want to discuss 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 for customization.
※ While we strive to ensure the photos accurately represent the actual color, due to lighting conditions during photography and your monitor environment, there may be slight differences in appearance. Also, some photos may have been taken using a penlight.
※ For products with UV fluorescence photos, a 365nm wavelength black light is used for photography. 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 refer to here.
※ For other frequently asked questions, please refer to here.
karatz_item_id: 12563864
Choose options



















[Posted on 12563864] Australian Black Opal 1.797ct Loose Stone
Sale price¥69,800
Regular price




![[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"](http://store.karatz.jp/cdn/shop/files/collage_3d96f963-1f94-4b66-8bf1-1414be53a8fe.png?v=1788571431&width=2000)
![[Use the #202509 Campaign] 2025 New Year's Lucky Bag 🎍 Gem Gacha Lucky Bag with 4 or more gemstones (worth ¥25,000) [Discount for bulk purchase of lucky bags]](http://store.karatz.jp/cdn/shop/files/gazou.png?v=1785994448&width=1254)


![[Lottery Sale 0812_11] K18 Madagascar Padparadscha Sapphire 0.412ct / Diamond 0.57ct Ring](http://store.karatz.jp/cdn/shop/files/P8070946_98fe5235-570d-4e14-bd57-b98aa0d11bc8.jpg?v=1788600875&width=1853)




















![[Jeweler's tools] 4-piece set including loupe (10x magnification), tweezers, and 2 loose stones](http://store.karatz.jp/cdn/shop/files/P4130575.jpg?v=1776126091&width=4000)

