










UV opal from Hokkaido 12.259ct loose with patch
Opal is a gemstone characterized by shimmering rainbow-colored light. Opal is a gemstone that comes in many different types and has a variety of expressions. Some people are so captivated by this charm that they collect only opals. Photographs are taken using a penlight.
This is a loose chairman's cut cut by the chairman of Shimizu Kiseki, which is famous for its Sakura in-cut and Dandelion cut . A special patch is included.
・Type: Loose (natural stone)
・Stone name: UV opal from Hokkaido
・Weight: 12.259ct
・Scratches/chips: - ・Inclusion: - ·remarks:---
・Accessories: Karatz quality guarantee card, case
▷For more information about opal
Opal characteristics, types, fakes, value standards, care methods, etc.
*We try to make sure that the colors in the photos are the same as the real thing, but the colors may look slightly different from the real thing depending on the lighting at the time of shooting and the monitor environment you are using. In addition, some photos may be taken using penlights.
*Click here for information on scratches, chips, treatments, and inclusions.
*For other frequently asked questions, please click here .
*If paying by credit card, the security company may contact you to confirm your identity.
karatz_item_id: 12539476
This is a loose chairman's cut cut by the chairman of Shimizu Kiseki, which is famous for its Sakura in-cut and Dandelion cut . A special patch is included.
・Type: Loose (natural stone)
・Stone name: UV opal from Hokkaido
・Weight: 12.259ct
・Scratches/chips: - ・Inclusion: - ·remarks:---
・Accessories: Karatz quality guarantee card, case
▷For more information about opal
Opal characteristics, types, fakes, value standards, care methods, etc.
*We try to make sure that the colors in the photos are the same as the real thing, but the colors may look slightly different from the real thing depending on the lighting at the time of shooting and the monitor environment you are using. In addition, some photos may be taken using penlights.
*Click here for information on scratches, chips, treatments, and inclusions.
*For other frequently asked questions, please click here .
*If paying by credit card, the security company may contact you to confirm your identity.
karatz_item_id: 12539476
Choose options




![[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_68f24c59-ad99-43b4-bb8f-f7560aa7f246.png?v=1792134404&width=2000)
![[Available 10/12 at 10 PM] 《Limited to 1 stone》 FANCY LIGHT PINK 2.9mm/0.092ct FANCY Color Pink Diamond (Sorting report included) 《Multi-buy discount available》](http://store.karatz.jp/cdn/shop/files/2026-10-1615.44.21.png?v=1792133085&width=1249)

![[10/22, 10:00 PM Sale] <limited to stones> Sky Blue Topaz (Round approx. 8mm, only one stone is approx. 10mm) <multiple purchase discount available></multiple></limited>](http://store.karatz.jp/cdn/shop/files/PA050720_0c803cec-809e-4351-8ed4-19b5405d1e2a.jpg?v=1791592314&width=4000)




![[Item 12564325] Kenya Gold Sheen Sapphire (Star Sapphire) 0.477ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/P9098894_9e71d12f-afda-46cb-99c2-1c15650319a3.jpg?v=1791805575&width=3070)

![[Deadline: Sat, Oct 3, 10 AM: Lottery Sale ①_07] Internally Flawless Diamond (H&C) 0.320ct Loose Stone (D, IF, 3Excellent H&C) GIA & CGL Certified](http://store.karatz.jp/cdn/shop/files/collage_c5a7826b-52bb-4208-b21b-dd0864ce4929.png?v=1790579363&width=2000)
![[10/3 (Sat) 10:00 AM Deadline: Lottery Sale ①_02] Diamond (H&C) 4.3mm/0.318ct Loose Stone (H, SI-1, 3Excellent H&C) with CGL Certificate & Sarine Light Report](http://store.karatz.jp/cdn/shop/files/collage_7de5fb5b-0545-4b3f-ad81-43e23de482f7.png?v=1790579155&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)


![[Jeweler's Tools] Color change penlight loose set](http://store.karatz.jp/cdn/shop/files/P1010673_2976de1d-08ce-4d92-94af-524da4485c99.jpg?v=1725605083&width=4000)