![[On sale 7/22 at 10 PM] Limited to 10 Stones: Sapphire Gacha featuring a Certified Padparadscha Sapphire! (Multiple Purchase Discount Available)](http://store.karatz.jp/cdn/shop/files/collage_9317fd7a-dcb8-4829-b93e-a6afe8ba1fa6.png?v=1784857361&width=3000)
![[On sale July 7th at 10 PM] Jeremejevite Gacha (Limited to 10 stones) (Multi-purchase discount available)](http://store.karatz.jp/cdn/shop/files/73.png?v=1785110938&width=2268)
![[7/ 22:00 Release] Limited to 15 Stones: Parasitic Peridot Gacha (Multiple Purchase Discount Available)](http://store.karatz.jp/cdn/shop/files/collage213.png?v=1785476632&width=4000)
Tanzanite from Tanzania 1.878ct Loose Gemstone [Listed as 12563990]
Sale price¥69,800
【掲載番号12564001】タンザニア産クロムトルマリン 2.271ctルース
Sale price¥98,000
![[On sale July 29th at 10 PM] Limited to 4 stones! Dunilite from Kolonna, Sri Lanka, all stones come with a gemological certificate. (Multiple purchase discount available)](http://store.karatz.jp/cdn/shop/files/78.png?v=1785150180&width=4000)
![[12563973 Posted] Dendritic Apatite 1.063ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/P8060066.jpg?v=1785976104&width=4000)
[12563973 Posted] Dendritic Apatite 1.063ct Loose Gemstone
Sale price¥29,800
![[Posted on 32501966] Diamond (H&C) 0.504ct Loose Stone (F, VS-1, 3Excellent H&C)](http://store.karatz.jp/cdn/shop/files/collage_3420f146-a30c-4674-a928-d1c052a8b068.png?v=1785819158&width=4000)
![[32501967 listed] Diamond (H&C) 0.257ct Loose Stone (D, SI1, Excellent H&C)](http://store.karatz.jp/cdn/shop/files/collage_569dcea8-965f-4070-b486-f8a03481ccd1.png?v=1785819114&width=4000)
[Listed on 32501961] Gray Diamond 0.380ct Loose (FANCY GRAY, I-3)
Sale price¥98,000
![[Lottery Sale 0629_08] Colombian Non-Oil Emerald 4.1mm/0.240ct Loose GIA](http://store.karatz.jp/cdn/shop/files/P6252043_bf7ba352-8708-4d76-a722-35fa2d8c1db4.jpg?v=1785129469&width=2995)
[Lottery Sale 0629_08] Colombian Non-Oil Emerald 4.1mm/0.240ct Loose GIA
Sale price¥458,000
![[#202607 Akihabara Pop-up Store Takeout][Shinjuku Marui Annex 202605 Takeout][12548265 Listed] Padparadscha Sapphire 0.545ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1010826.jpg?v=1779787158&width=4000)
【Sakura Shape】Synthetic Sapphire 8.8mm/3.631ct Loose Stone
Sale price¥39,800
[Star in cut] Mexican fire opal 7mm/0.678ct loose patch
Sale price¥39,800
![[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"](http://store.karatz.jp/cdn/shop/files/collage_f4ce5d64-8804-46cd-8a67-6e5dfa2be8a9.png?v=1785924412&width=4000)
![[On Sale 10 PM, June 7] *Limited to 3 Sets* 1.0ct/D/VS-VVS/IDEAL Lab-Grown Diamond (Synthetic Diamond) & 2 Rare Cabochon Stones (Total of 3 Stones Included) *Multiple Purchase Discount Available*](http://store.karatz.jp/cdn/shop/files/collage_07f6900d-fa8d-4bc4-acda-dc4cf0e8fed7.png?v=1785923452&width=4000)
![[On Sale 10 PM, June 7] *Limited to 3 Sets* 1.0ct/D/VS-VVS/IDEAL Lab-Grown Diamond (Synthetic Diamond) & 2 Rare Cabochon Stones (Total of 3 Stones Included) *Multiple Purchase Discount Available*](http://store.karatz.jp/cdn/shop/files/collage_ee8309d3-5bb0-4cb8-b162-fd9ce98dae4e.png?v=1785924238&width=4000)
【8/14 22時販売】《限定10石》ジンバブエ産ミントフローライト1石ルース（平均2.2ct） 《複数購入割引有》
Sale price¥4,580
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.