![[On Sale at 10pm on October 5th] Russian Alexandrite 0.333ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_89c85b39-76b6-43cd-a8f3-dbe1ab17d53d.png?v=1759541829&width=2250)
[On Sale at 10pm on October 5th] Russian Alexandrite 0.333ct Loose Stone
Sale price¥79,800
![[On Sale at 10pm on October 5th] American Benitoite 0.262ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P9194811_f9a96aa6-0dac-4fed-8307-3934b3b064a5.jpg?v=1758416228&width=3061)
[On Sale at 10pm on October 5th] American Benitoite 0.262ct Loose Stone
Sale price¥128,000
Euclase from Zimbabwe 0.409ct loose
Sale price¥45,800
Bicolor Zoisite 2.481ct loose
Sale price¥69,800
Brazilian Alexandrite 0.073ct Ruth (Hemachita Mine)
Sale price¥12,800
Brazilian Alexandrite 0.099ct Ruth (Hemachita Mine)
Sale price¥19,800
Brazilian Alexandrite 0.097ct Ruth (Hemachita Mine)
Sale price¥22,800
Brazilian Alexandrite 0.098ct Ruth (Hemachita Mine)
Sale price¥22,800
Grandidierite 0.206ct loose
Sale price¥22,800
Mali Garnet (Grossular/Andradite Garnet) 4.5mm/0.497ct Loose
Sale price¥8,800
UV type mint garnet 0.435ct loose
Sale price¥3,980
Brazilian Paraiba tourmaline 0.370ct loose (CuO:1.0%, MnO:1.2%)
Sale price¥59,800
Jeremejevite from Namibia 0.056ct loose
Sale price¥12,800
Jeremejevite from Namibia 0.034ct loose
Sale price¥9,800
Jeremejevite from Namibia 0.064ct loose
Sale price¥12,800
Paraiba tourmaline from Mozambique 0.266ct loose
Sale price¥25,800
Bicolor tanzanite 0.492ct raw stone from Tanzania
Sale price¥6,980
Bicolor tourmaline 0.418ct loose
Sale price¥3,980
Hemimorphite from Congo 0.432ct loose
Sale price¥6,980
![[On Sale at 10pm on October 8th] Afghanistan Hackmanite 0.134ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1010004_06442891-88dd-4cd9-94d8-841113444d41.jpg?v=1759709908&width=2971)
![[On Sale at 10pm on October 8th] Afghanistan Hackmanite 0.121ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034188_bdf22883-abdb-4e24-a418-c1adb2f30066.jpg?v=1759634868&width=2825)
![[On Sale at 10 PM on October 8th] Brazilian Pink Tourmaline 0.385ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034263_9b010db0-a87e-4867-9081-91a11e7d2d6e.jpg?v=1759634363&width=2895)
![[On Sale at 10 PM on October 8th] Pakistani Oil-in-Quartz 0.353ct Loose Stone (Faceted)](http://store.karatz.jp/cdn/shop/files/collage_a5f64669-c631-449a-91f8-20b78bf670c4.png?v=1759634145&width=2250)
![[On Sale at 10 PM on October 6th] Madagascar Golden Iolite (Cordierite) 0.193ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034521_096b674b-5591-4711-acd0-f9df63318ff0.jpg?v=1759628928&width=2926)
![[On Sale at 10 PM on 6th October] Tanzanian Sunstone (Illusion Sunstone) 5.0mm/0.338ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA034597_b9b64fbe-8bfe-4fec-9647-c67a02d73916.jpg?v=1759628545&width=3227)
![[On sale from 10/6 at 10pm] Brazilian Imperial Topaz 0.394ct Loose](http://store.karatz.jp/cdn/shop/files/PA034555_a8d40a93-ee5c-47c1-b39b-3c34085d382a.jpg?v=1759628722&width=3147)
[On sale from 10/6 at 10pm] Brazilian Imperial Topaz 0.394ct Loose
Sale price¥8,800
[On sale at 10pm on September 28th] Oil-free red beryl 0.200ct loose GIA
Sale price¥168,000
Italian leucite 0.130ct loose
Sale price¥8,800
Sri Lankan white sapphire 2.9mm/0.086ct loose (rose cut)
Sale price¥3,980
Brazilian imperial topaz 0.467ct loose
Sale price¥15,800
Benitoite 0.095ct loose
Sale price¥18,800
Brazilian pink imperial topaz 0.322ct loose
Sale price¥12,800
Hauinite 0.074ct loose
Sale price¥19,800
Brazilian Paraiba tourmaline 0.275ct loose (CuO:1.5%.MnO:2.3%)
Sale price¥358,000
Colombian emerald cat's eye 0.190ct loose
Sale price¥15,800
Red spinel 0.195ct loose
Sale price¥5,980
Paraiba tourmaline from Brazil 0.154ct loose (CuO:1.1wt%, MnO:1.4wt%)
Sale price¥128,000
[Posted 32501454] Pink Diamond 0.051ct Loose (FANCY LIGHT PINK, SI-2)
Sale price¥39,800
Russian demantoid garnet (horsetail recognized) 0.291ct loose
Sale price¥49,800
Benitoite 2.7mm/0.114ct loose
Sale price¥25,800
Brazilian alexandrite 0.060ct loose
Sale price¥14,800
Brazilian alexandrite 0.082ct loose
Sale price¥15,800
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.