![[On sale July 6th at 10 PM] Limited 1 set: 11-stone treated diamond set (approx. 1.2mm x 11 stones) [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/collage_e5be671f-36a8-4315-8a31-dbb181b561a1.png?v=1783037022&width=3000)
![[On sale July 5th, 10 PM JST] 《Limited 13 Stones》Unique Diamond Gacha - Including 1ct+ diamonds, round cut, rose cut, and fluorescent diamonds (with a bonus London Blue Diamond stone!) 《Multiple Purchase Discount Available》](http://store.karatz.jp/cdn/shop/files/55.png?v=1782905573&width=1890)
![[Sale begins 7/XX 10 PM JST] Limited 1 Set: Treated Diamond Set (approx. 1.2mm x 11 stones, 0.086ct) [Bulk purchase discount available]](http://store.karatz.jp/cdn/shop/files/S__244523010.jpg?v=1783039415&width=1477)
![[Sale starts July 11th, 10 PM JST] Limited to 16 Stones! Pink Diamond Gacha with 2 FANCY Color Pink Diamonds (with sorting certificate), normally ¥39,800. Multiple Purchase Discount Available.](http://store.karatz.jp/cdn/shop/files/60.png?v=1783559722&width=2268)
Parti-color Tourmaline from Brazil, 11.847ct Loose Gemstone with Certificate
Sale price¥258,000
[Lottery Sale 0731_03] Italian Leucite 0.346 ct Loose Stone
Sale price¥49,800
[Lottery Sale 0731_02] Italian Leucite 4.0mm/0.209ct Loose Stone
Sale price¥39,800
![Myanmar Red Spinel 1.001ct Loose Stone [Listed under 12563736]](http://store.karatz.jp/cdn/shop/files/P7101938_dd8a76f5-3ef1-49be-bbf5-0c6eb1cdaea5.jpg?v=1785835487&width=2556)
Myanmar Red Spinel 1.001ct Loose Stone [Listed under 12563736]
Sale price¥128,000
![[Lottery Sale 0731_01] Unheated Yellow Star Sapphire from Myanmar 1.004ct Loose Stone with Japan-Germany Gemological Report](http://store.karatz.jp/cdn/shop/files/P7102480_006704cb-c033-417c-8be7-eb13d2b736af.jpg?v=1785212389&width=2561)
![[Item 32501910] Internally Flawless Diamond (H&C) 0.206ct Loose (D, IF, 3Excellent H&C)](http://store.karatz.jp/cdn/shop/files/collage_03d49740-0013-4ca8-a59d-82c022f04bc7.png?v=1785213707&width=3000)
![[Sale on July 20 at 10 PM] Limited to 10 stones: Rare Stone Gacha 💎 Win Brazilian Paraiba Tourmaline, Colombian Euclase, and more, normally priced at ¥58,800 (plus one Ole Sand stone). Multiple purchase discount available.](http://store.karatz.jp/cdn/shop/files/65_76ea9982-9aa0-4b49-8d06-c3c1a675537a.png?v=1783914811&width=2268)
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.