![[Available 9/12 at 10 PM] <limited to stones> Russian & Brazilian Alexandrite Gacha (includes 1 Chrysoberyl stone from Mr. Saint-Germain) <multi-purchase discounts available></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/collage_0444602b-c22b-43be-b113-85703b4bbf14.png?v=1789084768&width=2000)
![[Limited to 24 stones] Oregon Sunstone from America with beautiful Schiller (Oval cut, 5 x 7mm) [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/collage_50cccb1a-7282-4487-ae6d-b6447e9885ee.png?v=1785119892&width=3000)
![[Available at 10 PM on February 2nd] Limited to 10 stones! Takeshi Yamamoto Cut Gemstone Gacha! Fire Flower Cut Rock Crystal and More! Discounts Available for Multiple Purchases!](http://store.karatz.jp/cdn/shop/files/2_6095cbcb-0dd3-4ab7-94b4-b22228432a93.png?v=1772620329&width=2000)
![[Available 10/2 at 10 PM] 《Limited to 16 stones》 Indian Andesine-Labradorite Gacha Loose Stone, Ojiki-cut (Avg. 1.3ct) 《Multi-purchase discounts available》](http://store.karatz.jp/cdn/shop/files/collage_6ac73e79-de81-46d0-ac91-9059bbe6a442.png?v=1790771658&width=2000)
![[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_3d96f963-1f94-4b66-8bf1-1414be53a8fe.png?v=1788571431&width=2000)
![[On sale May 29th at 10 PM] "Checker x Sui" Koshu Kiseki Cut Mexican Fire Opal (usually 79,800 yen) Gacha with only 10 stones available. Win a Fire Opal (and receive one Contraluz!). [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/P8200767.jpg?v=1787563557&width=4000)
![Limited to 15 stones! Green Oregon Sunstone rough stone from the United States 💎 Average 1.5ct [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010641_f4c7d555-3bb5-449a-8005-44d9c3c16e9b.jpg?v=1725593703&width=4000)
【10/31 22時販売】《数量限定》花珠アコヤ真珠1石（アコヤパール,約6.4～6.8ｍｍ）《複数購入割引有》
Sale price¥2,580
![[Available from 10/22] <<limited to stones>> Tanzanian Winza Sapphire, Avg. 0.47ct <<multi-purchase discount available>></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/collage_3491990c-c886-4740-824c-edc3c5228775.png?v=1792227669&width=2000)
[Available from 10/22] <> Tanzanian Winza Sapphire, Avg. 0.47ct <>
Sale price¥7,980
![[On sale July 10 at 10 PM] Limited 8 stones: Sweet Home Mine rhodochrosite single loose stone (average 0.1 ct) [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/P1010374_a19b207f-12e5-4ee0-b72b-39e70511ba5b.jpg?v=1783557559&width=4000)
![[On sale 10/30 at 22:00] 《Limited to 9 stones》 1 Iolite Sunstone loose stone from India (average 0.70ct) 《Multiple purchase discount available》](http://store.karatz.jp/cdn/shop/files/collage_2b006162-3b5c-439b-b582-bdff30c42e76.png?v=1791682080&width=2000)
![[Available 9/20 at 10 PM] Limited to 7 pieces: Brazilian Batalha Paraiba Tourmaline & Elbaite rough stone gacha, featuring bicolor Paraiba (CuO: 2.7%, MnO: 2.0%) usually priced at 25,800 yen (multi-purchase discounts available).](http://store.karatz.jp/cdn/shop/files/108.png?v=1789273320&width=1512)
![[Available 9/19 at 10 PM] <9 sets only> Rainbow Garnet rough & loose stone set from Tenkawa, Nara (includes one hexagonal pyrite) <multi-buy discount available></multi-buy>](http://store.karatz.jp/cdn/shop/files/collage_cd4257ff-d56b-4a88-afea-4f8021373440.png?v=1789690859&width=2000)
![[Available 9/18 at 10 PM] 《Limited to 13 stones》 Afghanite loose stone from Afghanistan (average 2.0ct, cabochon cut) 《Multiple purchase discount available》](http://store.karatz.jp/cdn/shop/files/P9090022_b426f920-6e41-4c28-91f2-f251010a6755.jpg?v=1789261468&width=4000)
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.