![[Koshu Precious Stone Kiriko] Rubellite 2.38ct loose with patch](http://store.karatz.jp/cdn/shop/products/PA220016_028e0968-b9aa-47fc-ba14-c2a3ff60b7fa.jpg?v=1634900258&width=4000)
![[Koshu Precious Stone Kiriko] Opal 2.080ct loose](http://store.karatz.jp/cdn/shop/products/PA220006_c9c0ccd0-3b08-4645-acc3-46d5e88d2eaf.jpg?v=1634900530&width=4000)
![[Lottery Sale 0531_03] Unheated Kashmir Sapphire 2.7mm/0.090ct Loose GIA](http://store.karatz.jp/cdn/shop/files/P5291715_55ff6627-3c27-41a7-be3d-dd397633bdd1.jpg?v=1780120018&width=3122)
[Lottery Sale 0531_03] Unheated Kashmir Sapphire 2.7mm/0.090ct Loose GIA
Sale price¥59,800
![[Lottery Sale 0530_02] Internally Flawless Diamond 3.8mm/0.217ct Loose Stone (D, IF, 3Excellent H&C) GIA](http://store.karatz.jp/cdn/shop/files/2_2adf4222-cfbe-45f7-9ce0-5d6c245a1ecd.png?v=1780015876&width=4000)
[Lottery Sale 0521_06] Sri Lankan Sapphire Cat's Eye Loose Stone 2.442ct
Sale price¥75,800
![[Lottery Sale 0531_14] Greenland Sapphire 1.258 ct Loose Stone with ChuBo & Analysis Data](http://store.karatz.jp/cdn/shop/files/P4146444_94c8707c-e98c-45ea-8186-c15898ea3b86.jpg?v=1780120441&width=2954)
![[Sakura In-Cut] Sapphire from Ratnapura, Sri Lanka, 6.0mm/0.839ct Loose](http://store.karatz.jp/cdn/shop/files/collage_7ab487c3-3173-4149-b4c1-85a3f2bef3bb.png?v=1760166578&width=2250)
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.