Paraiba tourmaline from Mozambique 0.207ct loose
Sale price¥9,800
Purple spinel 0.995ct loose stone
Sale price¥15,800
Mexican Fire Opal 4.5mm/0.244ct Loose
Sale price¥9,800
Diamond 0.052ct loose (trapeze cut, VS class equivalent)
Sale price¥6,980
Zircon 0.416ct loose
Sale price¥3,980
Chrysoberyl cat's eye 2.283ct loose
Sale price¥12,800
Colombian emerald cat's eye 0.110ct loose
Sale price¥9,800
Brazilian Paraiba tourmaline 0.420ct raw stone (CuO:1.6%, MnO:1.3%)
Sale price¥69,800
Paraiba tourmaline from Mozambique 0.229ct loose
Sale price¥9,800
Chrysoberyl cat's eye 2.553ct loose (bicolor)
Sale price¥39,800
![[12/9 22:00 Sale] Internally Flawless Diamond (H&C) 3.8mm/0.210ct Loose (F, IF, 3 Excellent H&C) GIA & Chuho](http://store.karatz.jp/cdn/shop/files/S__223027203.jpg?v=1761697297&width=1477)
![[On sale 12/6 at 10 PM] {Limited to 13 stones} Loose Spinel Gacha Stones, Including Sakura In-Cut and Dandelion Cut {Multiple purchase discounts available}](http://store.karatz.jp/cdn/shop/files/collage_55b17613-2e3d-4703-b90b-eba1d26ac012.png?v=1765006848&width=2250)
![[Available at 10 PM on December 6th] Limited Quantity! Guess what you'll receive! Gacha Set of 2 Rough and Loose Stones (Rare Stones Included) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/collage01_63a36d88-4b0c-4580-a52a-34d0de302821.png?v=1764984693&width=2250)
![[12/16 22:00] Brazilian Dumortierite in Quartz 10.0mm/5.357ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052077.jpg?v=1765757287&width=4000)
![[12/16 22:00] Brazilian Rose Quartz 4.019ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC053205_f1aaf7a0-87fb-4e1d-a7d0-a6b211d1cdaf.jpg?v=1765501592&width=4000)
[12/16 22:00] Brazilian Rose Quartz 4.019ct Loose Stone
Sale price¥11,000
![[12/16 22:00] Brazilian Rose Quartz 1.848ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC053183_c77f5c66-523a-4bc8-91b8-7ec5090427d6.jpg?v=1765757287&width=4000)
[12/16 22:00] Brazilian Rose Quartz 1.848ct Loose Stone
Sale price¥9,800
![[12/16 22:00 Sale] Green Sapphire 0.607ct Loose](http://store.karatz.jp/cdn/shop/files/PC052530_2f588a47-b6eb-4fa9-bbf4-ed1074e3cf88.jpg?v=1765757288&width=2552)
[12/16 22:00 Sale] Green Sapphire 0.607ct Loose
Sale price¥12,800
![[12/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.170ct Loose](http://store.karatz.jp/cdn/shop/files/PC052497_8d01ae1d-df4a-445b-93cc-9dfe45a33753.jpg?v=1765757396&width=2729)
[12/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.170ct Loose
Sale price¥12,800
![[12/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.182ct Loose](http://store.karatz.jp/cdn/shop/files/PC052463_2ea7a367-cd92-45ff-8363-772d7c4d65a9.jpg?v=1765757397&width=2502)
[12/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.182ct Loose
Sale price¥9,800
![[12/13 22:00] Brazilian Rose Quartz 2.167ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC042830.jpg?v=1765585045&width=4000)
[12/13 22:00] Brazilian Rose Quartz 2.167ct Loose Stone
Sale price¥9,800
![[12/20 22:00 Sale] Brazilian Gashenite 0.527ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC042693_ec625e46-9b90-4993-8f64-7daf50a84841.jpg?v=1766184426&width=4000)
[12/20 22:00 Sale] Brazilian Gashenite 0.527ct Loose Stone
Sale price¥8,800
![[12/20 22:00 Sale] Colombian Emerald Rough Stone 13.577ct](http://store.karatz.jp/cdn/shop/files/PC031743.jpg?v=1766184426&width=4000)
[12/20 22:00 Sale] Colombian Emerald Rough Stone 13.577ct
Sale price¥18,800
![[12/20 22:00 Sale] Colombian Emerald 8.169ct Rough Stone](http://store.karatz.jp/cdn/shop/files/PC031659.jpg?v=1766184426&width=4000)
[12/20 22:00 Sale] Colombian Emerald 8.169ct Rough Stone
Sale price¥9,800
![[12/20 22:00 Sale] Colombian Emerald 7.924ct Rough Stone](http://store.karatz.jp/cdn/shop/files/PC031637.jpg?v=1766184426&width=4000)
[12/20 22:00 Sale] Colombian Emerald 7.924ct Rough Stone
Sale price¥9,800
![[12/20 22:00 Sale] Colombian Emerald Rough Stone 6.933ct](http://store.karatz.jp/cdn/shop/files/PC031601.jpg?v=1766184428&width=4000)
[12/20 22:00 Sale] Colombian Emerald Rough Stone 6.933ct
Sale price¥9,800
![[12/20 22:00 Sale] Colombian Emerald Rough Stone 5.895ct](http://store.karatz.jp/cdn/shop/files/PC031587.jpg?v=1766184428&width=4000)
[12/20 22:00 Sale] Colombian Emerald Rough Stone 5.895ct
Sale price¥9,800
![[12/14 22:00] Indian Moonstone 5.1mm/0.426ct Loose Stone (Rose Cut)](http://store.karatz.jp/cdn/shop/files/PC032082.jpg?v=1765629901&width=4000)
[12/14 22:00] Indian Moonstone 5.1mm/0.426ct Loose Stone (Rose Cut)
Sale price¥6,980
![[Available at 10 PM on December 20th] Mali Garnet (Grossular/Andradite Garnet) 0.872ct Loose Stone from the Republic of Mali with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/PC031911.jpg?v=1766184428&width=4000)
![[12/21 22:00] Myanmar Leuco Garnet 0.542ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/PC031825_fb076ca1-bb64-45c8-92b2-b3586aaf4973.jpg?v=1766184429&width=3153)
[Option] Milling
Sale price¥6,600
![[Sale: Friday, December 19th, 10 PM] "Bungo and Alchemist" x KARATZ Collaboration Jewelry "Part 3" Bungo Ring [Kikuchi Kan Model Ring]](http://store.karatz.jp/cdn/shop/files/03_d1fff56d-18a4-444f-bd64-dfa11a0b9a45.jpg?v=1764724993&width=1080)
![[Sale: Friday, December 19th, 10 PM] "Bungo and Alchemist" x KARATZ Collaboration Jewelry "Part 3" Bungo Ring [Edogawa Ranpo Model Ring]](http://store.karatz.jp/cdn/shop/files/02_db3f7ed0-177f-418b-b788-6f945e929acf.jpg?v=1764724403&width=1080)
![[Sale: Friday, December 19th, 10 PM] "Bungo and Alchemist" x KARATZ Collaboration Jewelry "Part 3" Bungo Ring [Oda Sakunosuke Model]](http://store.karatz.jp/cdn/shop/files/01.jpg?v=1764723334&width=1080)
[Rouge cut] Almandine garnet 2.090ct loose
Sale price¥8,800
[Rouge cut] Almandine garnet 2.076ct loose
Sale price¥8,800
Australian opal 0.286ct loose
Sale price¥5,980
Oregon Sunstone 0.976ct loose
Sale price¥18,800
YAG (Yttrium Aluminum Garnet) 7mm/1.775ct Loose Stone
Sale price¥9,800
Dioptase from Namibia 0.229ct loose Japanese-German book
Sale price¥69,800
Bicolor Andesine 6mm/0.756ct loose
Sale price¥12,800
Pink spinel 0.409ct loose
Sale price¥6,980
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.