Oval Cut
Brazilian Green Tourmaline 1.193ct Loose Stone
Sale price¥39,800
Brazilian Green Tourmaline 11.453ct Loose Stone
Sale price¥158,000
Brazilian Green Tourmaline 4.374ct Loose Stone
Sale price¥88,000
【10/25 22時販売】ブラジル産レインボーアクアマリン（イリデッセンスアクアマリン） 1.059ctルース
Sale price¥11,000
![[Ref: 12564456] Mozambique Aquamarine 0.837ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P9304778_1205a47a-754d-4e91-81eb-b5504df57807.jpg?v=1791985647&width=2889)
[Ref: 12564456] Mozambique Aquamarine 0.837ct Loose Stone
Sale price¥9,800
![[Item 12564727] Tanzanite from Tanzania, 0.956ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA161228_4da8170d-bdbd-486f-ae4d-86ff94ad1c5a.png?v=1792382528&width=2767)
[Item 12564727] Tanzanite from Tanzania, 0.956ct Loose Stone
Sale price¥19,800
![[Item 12564726] Tanzanian Tanzanite 0.827ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA161194_34a90cb6-f6bd-440a-903e-8b45103fedf6.jpg?v=1792382570&width=2581)
[Item 12564726] Tanzanian Tanzanite 0.827ct Loose Stone
Sale price¥18,800
![[Ref: 12564725] Tanzanite from Tanzania, 0.892ct loose stone](http://store.karatz.jp/cdn/shop/files/PA161160_9cba6231-1457-400e-ae3e-9308c6a7ec4f.jpg?v=1792382627&width=2541)
[Ref: 12564725] Tanzanite from Tanzania, 0.892ct loose stone
Sale price¥18,800
![[12565162 Listed] Spessartine Garnet from Tanzania 0.739ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/PA161448_243e02f0-2e83-4100-8b35-63af2035a16e.jpg?v=1792382653&width=2629)
![[Available 10/18 at 10 PM] Ruby 0.185ct Loose Stone with Appraisal Report](http://store.karatz.jp/cdn/shop/files/PA150875_4600c571-0d42-4c35-a216-6d7c8c0da4fc.jpg?v=1792157766&width=2776)
![[Item 12565148] Ruby 0.552ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA150929_bd3f87e5-dc30-4b78-b414-36db1d1518fc.jpg?v=1792383156&width=2905)
[Item 12565148] Ruby 0.552ct Loose Stone
Sale price¥14,800
![[Item No. 12564322] Burmese Red Spinel 0.176ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/P9090184_9700c589-2ea2-4930-80df-edac6c0e1e4b.jpg?v=1791931653&width=2569)
[Item No. 12564322] Burmese Red Spinel 0.176ct Loose Gemstone
Sale price¥17,800
![[Item 12564627] Bekily Blue Garnet (Color-Change Garnet) from Madagascar, 0.620ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_66b45918-a745-4339-8b28-20879c90c42f.png?v=1791930312&width=2000)
![[Item No. 12560796] Brazilian Elestial Amethyst 1.965ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA142921.jpg?v=1792122009&width=4000)
[Item No. 12560796] Brazilian Elestial Amethyst 1.965ct Loose Stone
Sale price¥18,800
![[12560786] Nigerian Green Beryl 0.621ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA142855.jpg?v=1792121929&width=4000)
[12560786] Nigerian Green Beryl 0.621ct Loose Stone
Sale price¥8,800
[Available Oct 12, 10 PM] Indian Iolite Sunstone 1.113ct Loose Gemstone
Sale price¥11,800
![[Available 10/14 at 10 PM] Russian Demantoid Garnet (horsetail inclusions visible) 0.206ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/PA078546_17f3f92d-e88e-4197-8c24-415090d45e68.png?v=1791718029&width=2863)
![[Available 10/14 at 22:00] Russian Emerald 0.247ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/PA056711_c818dc94-64f3-4871-a727-e6496ec3fe22.jpg?v=1791758190&width=3028)
[Available 10/14 at 22:00] Russian Emerald 0.247ct Loose Gemstone
Sale price¥49,800
[Lottery Sale ②_202608_04] Unheated Kashmir Sapphire 0.710ct Loose Stone GIA
Sale price¥298,000
[Available Oct 3, 10 PM] Pakistani Väyrynenite 0.066ct Loose Gemstone
Sale price¥14,800
[Available 10/3, 10:00 PM] Afghan Hauyne 0.067ct Loose Stone
Sale price¥12,800
[10/7 10:00 PM Release] Afghan Hauyne 0.082ct Loose Stone
Sale price¥12,800
[Available 10/10 at 22:00] Afghan Hauyne 0.226ct Loose Gemstone
Sale price¥18,800
【Available 10/17 at 10 PM】 Afghan Hauyne 0.199ct Loose Stone
Sale price¥22,800
[10/17 10:00 PM Release] Brazilian Amethyst 14.813ct Loose Stone
Sale price¥15,800
![[Available 10/12 at 22:00] Brazilian Color-Shift Amethyst 1.614ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/P9300981_d95aefa8-c3c9-4a0d-8fd4-557adba673a2.jpg?v=1791726376&width=3228)
[Available Oct 5, 10:00 PM] Malawi Moonstone 1.640ct Loose Stone
Sale price¥9,800
[On sale 10/8 at 22:00] Malawi Moonstone 2.121ct Loose Stone
Sale price¥12,800
Royal Blue Sapphire 0.530ct Loose Stone
Sale price¥69,800
[12564298] Phenakite from Malyshevo, Russia, 0.712ct Loose Gemstone
Sale price¥22,800
[Item 12564299] Phenakite from Malyshevo, Russia, 0.635ct loose stone
Sale price¥22,800
Myanmar Star Peridot 3.644ct Loose Stone
Sale price¥29,800
[9/27 10:00 PM Release] Colombian Emerald 0.079ct Loose Stone
Sale price¥8,800
[9/27 10:00 PM Release] Colombian Emerald 0.121ct Loose Stone
Sale price¥15,800
[Available 9/23 at 10:00 PM] Sri Lankan Moonstone 1.440ct Loose Gemstone
Sale price¥15,800
[Available 9/22, 10 PM] Unheated Pigeon Blood Ruby 0.310ct Loose AIGS
Sale price¥49,800
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.