Scapolite Cat's Eye 8.880ct Loose
Sale price¥8,800
![[Jeweler's Tools] Digital Caliper Color Shift Amethyst 2 Piece Set](http://store.karatz.jp/cdn/shop/files/PB074623.jpg?v=1699331046&width=4000)
[Jeweler's Tools] Digital Caliper Color Shift Amethyst 2 Piece Set
Sale price¥2,980
1 stone of green opal from South Africa (discount available for multiple purchases)
Sale priceFrom ¥2,980
Diamond loose/certificate transfer fee
Sale price¥6,600
![[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)
[Jeweler's Tools] Color change penlight loose set
Sale price¥4,980
![[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] White penlight (for loose), loose 3-piece set](http://store.karatz.jp/cdn/shop/files/P1010939_d2032b55-e8e4-4e38-a15d-14d2ee8092f5.jpg?v=1776421761&width=4000)
[Jeweler's Tools] White penlight (for loose), loose 3-piece set
Sale price¥5,980
Repair fee + ¥8,800
Sale price¥8,800
【9/4 22時販売】《限定16石》コロンビア産エメラルド原石（平均0.35ct）《複数購入割引有》
Sale price¥5,980
【9/5 22時販売】《限定5石》コロンビア産エメラルド原石（平均0.52ct）《複数購入割引有》
Sale price¥7,980
Amazon Green Opal 0.814ct Loose (Faceted Cut)
Sale price¥7,980
Amazonian green opal 0.517ct loose stone (faceted cut)
Sale price¥7,980
Amazon Green Opal 0.285ct Loose (Faceted Cut)
Sale price¥6,980
Brazilian copper rutilated quartz 1.334ct loose stone
Sale price¥8,800
Oregon Sunstone from the United States 0.292ct loose stone
Sale price¥6,980
【9/4 22時販売】《限定7石》コロンビア産ミントカラーエメラルド原石（平均0.51ct）《複数購入割引有》
Sale price¥6,980
![[8/ 10 PM Sale] Amethyst Gacha Featuring Dandelion Cut Gemstones by Shimizu Kisaki - 12 Limited Pieces Available! (Multiple Purchase Discount)](http://store.karatz.jp/cdn/shop/files/2026-08-2717.26.42.png?v=1787819224&width=1285)
![Limited to 10 stones: Madagascar pink sapphire (heart-shaped, including padparadscha color, approximately 3 x 2.3 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_cc2c84c4-e3e6-456b-a833-65c44967ef99.png?v=1787811529&width=2000)
【9/3 22時販売】合成ルチル 3.8mm/0.278ctルース
Sale price¥8,800
【9/3 22時販売】高知県産血赤珊瑚 1.336ctルース
Sale price¥9,800
【9/3 22時販売】高知県産血赤珊瑚 1.235ctルース
Sale price¥9,800
【9/3 22時販売】ブラジル産モンテブラサイト 4.0mm/0.251ctルース
Sale price¥8,800
【9/3 22時販売】トルコ産ダイアスポア 0.410ctルース
Sale price¥9,800
【9/3 22時販売】ブラジル産ロードナイトインクォーツ 0.438ctルース
Sale price¥8,800
【9/3 22時販売】ブラジル産ロードナイトインクォーツ 5.5mm/0.562ctルース
Sale price¥8,800
【9/3 22時販売】ブラジル産ロードナイトインクォーツ 6.2mm/0.600ctルース
Sale price¥9,800
![[Sales start August 8th, 10 PM] Limited to 10 Stones! Color Change Gem Gacha Featuring Color Change Zircon and Alexandrite (Multi-purchase discount available)](http://store.karatz.jp/cdn/shop/files/93.png?v=1787100849&width=1134)
![[On sale May 29th at 10 PM] "Checker x Sui" Koshu Kiseki Cut Mexican Fire Opal (usually 79,800 yen) Gacha with only 10 stones available. Win a Fire Opal (and receive one Contraluz!). [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/P8190645.jpg?v=1787385497&width=4000)
![Limited to 10 stones: Madagascar pink sapphire (heart-shaped, including padparadscha color, approximately 3 x 2.3 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_9109ca4b-cf51-4ed2-9859-1a3f6b317f8b.png?v=1787121427&width=2000)
![Limited to 10 stones: Madagascar pink sapphire (heart-shaped, including padparadscha color, approximately 3 x 2.3 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_e3bc2b9c-c542-42ee-9a4d-e3f647d927ae.png?v=1787118079&width=2000)
Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.
So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.
KARATZ's Initiatives and Social Contributions
We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.
KARATZ Books
These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.
jeweler's tools
For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.