Brazilian Color-Shifting Amethyst 0.849ct Loose Stone
Sale price¥8,800
[12541314 published] Ametrine 2.429ct loose
Sale price¥39,800
Brazilian Elestial Amethyst 0.809ct Loose Stone
Sale price¥6,980
Brazilian Elestial Amethyst 0.673ct Loose Stone
Sale price¥9,800
Brazilian Elestial Amethyst 3.093ct Loose Stone
Sale price¥19,800
[Takeshi Yamamoto] Brazilian Ametrine 29.930ct loose stone
Sale price¥79,800
[Takeshi Yamamoto] Brazilian Ametrine 24.465ct loose stone
Sale price¥98,000
Hollandite in Amethyst 3.048ct loose stone
Sale price¥9,800
[Takeshi Yamamoto] Ametrine 20.856ct loose stone
Sale price¥98,000
Sri Lankan Chrysoberyl Cat's Eye 0.519ct Loose Stone
Sale price¥8,800
Brazilian Trapiche Amethyst 10.855ct loose stone
Sale price¥6,980
Chrysoberyl cat's eye 2.843ct loose
Sale price¥39,800
"PSYCHO-PASS" x KARATZ collaboration jewelry: Shogo Makishima razor design ring (amethyst)
Sale priceFrom ¥25,800
Chrysoberyl cat's eye from Sri Lanka 5.176ct loose
Sale price¥198,000

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.






















![[10/4, 10 PM Release] Brazilian Amethyst 8.984ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/PA071484_e0a076f0-9900-4718-8633-aa6968a7fdd1.jpg?v=1791333891&width=3548)
![[Available 9/22, 10 PM] 《Limited to 16 stones》 Amethyst Gacha featuring Shimizu Kikouseki’s Sakura and Dandelion cuts 《Multi-purchase discounts available》](http://store.karatz.jp/cdn/shop/files/collage_3687d555-9384-411a-85b0-a4b87cd53e60.png?v=1790850508&width=2000)



![[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)
![[On sale August 23rd at 10 PM] Limited 10 Stones! Amethyst Gacha featuring Koshu-Kiseki-Kiriko-plus-three "Akatsuki" (with one citrine cut by Mr. Sandje) [Multiple Purchase Discount Available]](http://store.karatz.jp/cdn/shop/files/collage_f4ace2f9-5fe7-4ba7-ad87-22a174e398a0.png?v=1787354382&width=2000)























