






















[On sale May 3rd, 10 PM JST] Peruvian Bi-Color Blue Opal 4.067ct Loose Stone
A refreshing blue reminiscent of the Mediterranean Sea. Blue opal with an attractive pure brilliance. Blue opals often refer to the blue variety of common opals without play-of-color, but rarely, blue-toned black opals are also called by this name. A penlight was also used during photography.
This is a Peruvian blue opal with a distinctive pattern that just arrived from Tucson, USA.
・Type: Loose stone (natural stone)
・Stone name: Blue Opal
・Weight: 4.067ct
・Size: 11.8 x 10.0 mm
・Shape: Cabochon cut
・Scratches/Chips: A+
・Inclusions: None
・Remarks: ---
・Accessories: Karatz quality guarantee, loose stone case (if it doesn't fit, a zippered clear case)
※ While we strive to make the photos appear as close to the actual product color as possible, please note that due to lighting conditions during photography and your monitor environment, the actual product may appear slightly different. Also, some photos may have been taken using a penlight.
※ For information on scratches, chips, treatments, and inclusions, please see here.
※ For other frequently asked questions, please see here.
karatz_item_id: 12562648
This is a Peruvian blue opal with a distinctive pattern that just arrived from Tucson, USA.
・Type: Loose stone (natural stone)
・Stone name: Blue Opal
・Weight: 4.067ct
・Size: 11.8 x 10.0 mm
・Shape: Cabochon cut
・Scratches/Chips: A+
・Inclusions: None
・Remarks: ---
・Accessories: Karatz quality guarantee, loose stone case (if it doesn't fit, a zippered clear case)
※ While we strive to make the photos appear as close to the actual product color as possible, please note that due to lighting conditions during photography and your monitor environment, the actual product may appear slightly different. Also, some photos may have been taken using a penlight.
※ For information on scratches, chips, treatments, and inclusions, please see here.
※ For other frequently asked questions, please see here.
karatz_item_id: 12562648
Choose options



![[Limited to 16 Stones] Yellow Diamond Gacha including Sorting [Multiple Purchase Discount Available]](http://store.karatz.jp/cdn/shop/files/64.png?v=1783912782&width=2268)

![[On sale 7/22 at 10 PM] Limited to 10 Stones: Sapphire Gacha featuring a Certified Padparadscha Sapphire! (Multiple Purchase Discount Available)](http://store.karatz.jp/cdn/shop/files/collage_9317fd7a-dcb8-4829-b93e-a6afe8ba1fa6.png?v=1784857361&width=3000)
![[On sale July 4th at 10 PM] "Hong Kong Procurement - Limited to 24 Stones" Vibrant Lazurite Loose Stones from Pakistan "Bulk Purchase Discount Available"](http://store.karatz.jp/cdn/shop/files/collage_a1e26f47-c822-431f-9959-20da33d3d529.png?v=1784770199&width=3000)
![[Sale on 7/ at 10 PM] "Limited to 13 Stones" Madagascar Sapphirine, average 0.09ct "Multiple Purchase Discount Available"](http://store.karatz.jp/cdn/shop/files/P1010288_ec4000a1-014e-44e1-9b97-40f834b9e6e7.jpg?v=1783494963&width=4000)
![[Sale starts 10PM on July 12] Limited 20 Stones: Grandidierite Single Stone Loose (Avg. 0.035ct) from Madagascar [Multiple Purchase Discount Available]](http://store.karatz.jp/cdn/shop/files/P1010194_ea02faf6-d812-4758-9e0c-262e6891b700.jpg?v=1783773075&width=4000)

![[Posted as 12562691] Malawi Bicolor Zircon 2.082ct Loose](http://store.karatz.jp/cdn/shop/files/P4167648_2c47ab2d-223a-4832-b24e-248a9661a49a.jpg?v=1784859853&width=4000)
![[Listed as 12562727] Pink Imperial Topaz 1.907ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P7031109_6dd5a411-7934-41ee-8f38-04ec02f46aa3.jpg?v=1784860602&width=3398)

















![[Jeweler's Tools] 3 black light loose pieces (ruby, red spinel rough, oil-in-quartz) with rechargeable battery](http://store.karatz.jp/cdn/shop/files/collage_c90ad5e1-b47a-49f9-b7d7-d75e04cd883a.png?v=1724920180&width=2000)
![[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)
