![[Lottery Sale 0825_11] Cambodian Blue Zircon (Ratanakiri Blue) 8.1mm/3.256ct Loose Stone with Certificate](http://store.karatz.jp/cdn/shop/files/P7299527_e0205d2e-25d3-4d5c-a169-97f257e8d9da.jpg?v=1787629039&width=2666)
![[Lottery Sale 0818_06] Madagascar Royal Blue Sapphire 0.623ct Loose Stone with Certificate](http://store.karatz.jp/cdn/shop/files/P7313869_3563e488-69e2-4cd8-aef9-f59fdbcbc825.jpg?v=1788239092&width=3081)
![[Lottery Sale 0812_18] Zambian Non-Oil Emerald 0.540ct Loose GIA](http://store.karatz.jp/cdn/shop/files/P8040693_ae4d09af-be87-4d9c-bdf6-7ee2b416c36b.jpg?v=1788239363&width=3146)
[Lottery Sale 0812_18] Zambian Non-Oil Emerald 0.540ct Loose GIA
Sale price¥178,000
![[Lottery Sale 0825_10] Colombian Non-Oil Emerald 0.090ct Loose GIA](http://store.karatz.jp/cdn/shop/files/P7313691_d09b3b02-37b0-4a16-8105-6e933f0ec328.jpg?v=1788239685&width=3060)
[Lottery Sale 0825_10] Colombian Non-Oil Emerald 0.090ct Loose GIA
Sale price¥128,000
[Lottery Sale 0818_09] Brazilian Dioptase 1.608ct Loose with Certificate
Sale price¥59,800
![[Lottery Sale 0818_07] Madagascar Bi-Color Sapphire 1.870ct Loose Stone with Gem Identification Report](http://store.karatz.jp/cdn/shop/files/P7313519_b6fb945a-8a51-4c24-94f2-0988ae17d6f9.jpg?v=1788239983&width=2637)
![[Lottery Sale 0825_09] Colombian Non-Oil Emerald 0.080ct Loose GIA](http://store.karatz.jp/cdn/shop/files/P7313760_274f584e-8895-44e7-9336-04157aa72843.jpg?v=1788240458&width=2925)
[Lottery Sale 0825_09] Colombian Non-Oil Emerald 0.080ct Loose GIA
Sale price¥118,000
![[Lottery Sale 0731_10] Colombian Muzo Non-Oil Emerald 0.370ct Loose GIA](http://store.karatz.jp/cdn/shop/files/P7216735_8fae3db5-7137-4568-b3ba-ecca5ed4d624.jpg?v=1788240803&width=3045)
[Lottery Sale 0731_10] Colombian Muzo Non-Oil Emerald 0.370ct Loose GIA
Sale price¥298,000
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.
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.