![[On Sale 5/28 10PM] Bungo and Alchemist x KARATZ Collaboration Jewelry - Vol. 4: Bungo Ring [Sakaguchi Ango Model Ring]](http://store.karatz.jp/cdn/shop/files/bungou_pt4_bnr_03b_1080x1080_0583a7bf-27be-4ac0-b5cf-9654b94847b7.jpg?v=1779787573&width=1080)
![[Sale starts 6/5 at 10 PM JST] 《Limited to 25 sets》Kochi Prefecture Red Coral Branch (Raw Wood) and 2 Loose Stones Set (March Birthstone, Coral) 《Multiple Purchase Discount Available》](http://store.karatz.jp/cdn/shop/files/collage_3cb44437-e951-4438-8b17-74206568a429.png?v=1780733612&width=4000)
![[On sale May 23rd, 10 PM] "Limited 7 Stones" Kochi Prefecture Blood Coral Loose Gemstones (Oval Cut, 4x6~7mm) "Multi-purchase discount available"](http://store.karatz.jp/cdn/shop/files/P5210043_c0fa32b1-c95e-4019-8fc7-8a9735d549cd.jpg?v=1779352430&width=4000)
![[On sale 6/6 at 10 PM] Limited to 6 Stones: Needle-Inclusion Blue Topaz Loose Stone (Avg. 16ct) - Multiple Purchase Discount Available](http://store.karatz.jp/cdn/shop/files/38.png?v=1780477251&width=1890)
![[On Sale June 6th, 10 PM JST] 11-Piece Limited Edition Madagascar Sapphire Gacha (Including bi-color and silky varieties, 3.5-5.4mm) [Multi-buy discount available]](http://store.karatz.jp/cdn/shop/files/P1010258_f7dc9e7a-ba96-4f16-b0cc-3597b42b15e9.jpg?v=1780475574&width=4000)
![[On Sale May 28th at 10 PM] "Bungo and Alchemist" x KARATZ Collaboration Jewelry: Vol. 4 - Bungo Ring [Chuya Nakahara Model Ring]](http://store.karatz.jp/cdn/shop/files/bungou_pt4_bnr_03a_1080x1080_188850d0-864d-433e-aee2-4c42cc37704d.jpg?v=1779787581&width=1080)
![[On Sale June 6th]《Limited to 9 Stones》Brazilian Amethyst Single Stone Loose (Includes Elestial and Bi-Color Amethyst)《Bulk Purchase Discount Available》](http://store.karatz.jp/cdn/shop/files/P1010178_2ed6b7e4-2260-4141-b297-92d488154d96.jpg?v=1780474262&width=4000)
Goshenite 0.846ct loose stone
Sale price¥7,980
![[On Sale June 7th, 10 PM] Limited to 15 Stones: Afghan Pink Diaspore Single Stone Loose Gemstone (Avg. 0.3ct) - Multiple Purchase Discount Available](http://store.karatz.jp/cdn/shop/files/P1010212_0cf98850-1eef-4062-9357-fd4c24ff6ff7.jpg?v=1780475062&width=4000)
![[On sale June 8th, 10 PM JST] 《Limited to 4 stones》Needle-in-Blue Topaz Gacha💎Average 45ct《Multiple purchase discount available》](http://store.karatz.jp/cdn/shop/files/39.png?v=1780478004&width=2268)
Brazilian Bicolor Tourmaline 7.2mm/1.326ct Loose Stone
Sale price¥18,800
Cambodian Blue Zircon 0.744ct Loose Stone
Sale price¥7,980
Brazilian Blue Tourmaline 0.196ct Loose
Sale price¥6,980
Vietnam Aquamarine 0.494ct Loose Stone
Sale price¥8,800
Vietnam Aquamarine 0.398ct Loose
Sale price¥5,980
Brazilian Pink Tourmaline 0.862ct Loose Stone
Sale price¥12,800
Sky blue topaz 1.719ct loose stone
Sale price¥8,800
Almandine Garnet 0.814ct Loose Stone
Sale price¥7,980
Greenland sapphire 0.592ct loose stone
Sale price¥18,800
[Cat cut] Brazilian dendritic agate 0.774ct loose stone
Sale price¥6,980
Madagascar sphene 0.838ct loose stone
Sale price¥9,800
Madagascar sphene 0.569ct loose stone
Sale price¥6,980
Mozambique pink spinel 0.670ct loose stone
Sale price¥22,800
Almandine Garnet 1.049ct Loose Stone
Sale price¥9,800
Myanmar Star Spinel 2.030ct Loose
Sale price¥69,800
Sri Lankan Star Sapphire 7.111ct Loose
Sale price¥59,800
Sri Lankan Star Sapphire 6.477ct Loose
Sale price¥49,800
Loose Paraiba Tourmaline from Brazil, 0.059ct (CuO: 1.4%, MnO: 2.7%)
Sale price¥45,800
![[On sale May 28th at 10 PM] "Bungo to Alchemist" x KARATZ Collaboration Jewelry Vol. 4: Bungo Ring [Takiji Kobayashi Model Ring]](http://store.karatz.jp/cdn/shop/files/bungou_pt4_bnr_03c_1080x1080_3452dba7-b9d7-4d95-805d-90a51ce343fa.jpg?v=1779787564&width=1080)
Brazilian Paraiba Tourmaline 0.056ct Loose Stone (CuO:2.1%, MnO:2.2%)
Sale price¥39,800
Pink tourmaline 0.845ct loose stone
Sale price¥12,800
Brazilian Paraiba Tourmaline 0.065ct Loose Stone (CuO: 2.0%, MnO: 2.4%)
Sale price¥49,800
Pink spinel 0.713ct loose stone
Sale price¥8,800
Mexican Hyalite Opal 1.215ct Loose (Faceted Cut)
Sale price¥8,800
Brazilian Quartz in Quartz 15.373ct Loose Stone
Sale price¥18,800
Tanzanian Kornerupine 0.172ct loose stone
Sale price¥12,800
[On sale May 31, 10 PM] Afghan Hackmanite 0.205ct Loose Stone
Sale price¥36,800
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.