![[On Sale at 10 PM on January 27th] Mexican Fire Opal 0.235ct Loose (Faceted)](http://store.karatz.jp/cdn/shop/files/P1211603.jpg?v=1769147090&width=4000)
![[On Sale at 10 PM on January 27th] American Peridot 0.496ct Pair of Two Loose Stones](http://store.karatz.jp/cdn/shop/files/P1212236.jpg?v=1769151430&width=4000)
![[On Sale at 10 PM on January 29th] Tanzanian Mandarin Garnet 0.352ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1212162_7601c2c2-4a96-4228-b4dc-c0274170dc31.jpg?v=1769515445&width=2658)
![[On Sale at 10 PM on January 27th] Tanzanian Canary Yellow Chrysoberyl 0.139ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1212152.jpg?v=1769301763&width=4000)
![[On Sale at 10 PM on January 27th] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.150ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_8baf0229-69ca-4beb-8edd-3360c626ad7f.png?v=1769301764&width=2250)
![[On Sale at 10 PM on January 27th] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.132ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_38a66dc7-3b7f-4f08-864b-1bcfa502af3b.png?v=1769301763&width=2250)
![[On Sale at 10 PM on January 25th] Mexican Fire Opal 0.191ct Loose (Faceted)](http://store.karatz.jp/cdn/shop/files/P1201367.jpg?v=1769240879&width=4000)
![[On Sale at 10 PM on January 25th] Canadian Rough Diamond (Sawable) 0.103ct Rough Stone](http://store.karatz.jp/cdn/shop/files/P1190498.jpg?v=1769241204&width=4000)
![[On sale at 10pm on January 21st] Tanzanite from Tanzania 0.467ct loose stone](http://store.karatz.jp/cdn/shop/files/PC052685_86d77fee-5916-4226-85f9-fb6b8067edb4.jpg?v=1768878572&width=2561)
![[On Sale at 10 PM on January 21st] Tanzanite from Tanzania 0.436ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052723_f3d01ab6-8f8c-4558-a15e-96c2758ed7b1.jpg?v=1765587394&width=2909)
![[On Sale at 10 PM on January 28th] Madagascar Grandidierite 0.228ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1010888_da7d4774-be38-4591-a473-cf3d1fd1f4c3.jpg?v=1769480881&width=3284)
![[On Sale at 10 PM on January 20th] 0.257ct Unheated Silky Pink Sapphire from Vietnam](http://store.karatz.jp/cdn/shop/files/P1149629.jpg?v=1768773538&width=4000)
![[On Sale at 10 PM on January 14th] American Benitoite 0.257ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P9194879_e20a24ed-de0d-4a74-af90-af31a20e1607.jpg?v=1768278433&width=3213)
[On Sale at 10 PM on January 14th] American Benitoite 0.257ct Loose Stone
Sale price¥158,000
![[On Sale at 10 PM on January 12th] 0.466ct Sawable Diamond Rough Stone (with Trigon)](http://store.karatz.jp/cdn/shop/files/P1088079.jpg?v=1768172012&width=4000)
![[On sale at 10pm on 1/12] Diamond rough (makeable) 0.204ct rough](http://store.karatz.jp/cdn/shop/files/P1088037.jpg?v=1768086585&width=4000)
[On sale at 10pm on 1/12] Diamond rough (makeable) 0.204ct rough
Sale price¥39,800
![[1/11 22:00 Sale] Brazilian Dumortierite in Quartz 0.382ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1088465_f43d3e40-29aa-4624-a2a1-c6d1634e73e3.jpg?v=1767942646&width=3570)
![[Available at 10 PM on January 10th] Cornflower Blue Sapphire 4.5mm/0.430ct Loose Stone AIGS](http://store.karatz.jp/cdn/shop/files/P8214781_694819ef-19a1-4c6b-b218-44465e22231f.jpg?v=1767738514&width=2618)
![[On Sale at 10 PM on January 9th] Brazilian Indigolite Tourmaline 0.421ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/P8214968_5efc3821-63a5-458b-ad37-e6ff348a5599.jpg?v=1767738401&width=3143)
![[On Sale at 10 PM on January 6th] Mexican Water Opal (Faceted) 0.215ct Loose (Contralus Opal)](http://store.karatz.jp/cdn/shop/files/PC043015_5b1ccc8f-4878-4de6-825d-afb89bf60c71.jpg?v=1767484572&width=3310)
Grandidierite from Madagascar 0.167ct loose stone
Sale price¥39,800
Pakistani Lazurite (Azurite) 0.171ct Loose Stone
Sale price¥49,800
Colombian emerald 3.3mm/0.131ct loose stone
Sale price¥25,800
![[1/5 22:00 Sale] Parasitic Peridot 0.241ct Loose Stone, Japan-Germany Qualification](http://store.karatz.jp/cdn/shop/files/PC250884_b83a5846-1751-4770-a616-3e92f08a6e06.jpg?v=1767400505&width=3248)
![[On Sale at 10 PM on January 9th] Brazilian Paraiba Tourmaline 0.361ct Loose Stone (CuO: 1.0%, MnO: 3.6%)](http://store.karatz.jp/cdn/shop/files/PC245589.jpg?v=1767700054&width=4000)
![[On Sale at 10 PM on January 9th] Brazilian Paraiba Tourmaline 0.115ct Loose Stone (CuO: 2.0%, MnO: 0.6%)](http://store.karatz.jp/cdn/shop/files/PC245631_90fc9d3c-b244-4683-a742-138336741bf6.jpg?v=1767700054&width=3010)
![[On Sale at 10 PM on January 1st] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.183ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_291d3077-5f61-47a0-bfed-144d684da372.png?v=1767139156&width=2250)
![[1/1 10pm Sale] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.189ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_dc13498b-2187-4699-a810-f567f7d435df.png?v=1767139156&width=2250)
![[On Sale at 10 PM on January 1st] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.221ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_3ce96f6b-64e2-48e0-a6ad-1a7b632e0f7c.png?v=1767139272&width=2250)
Indian Moonstone 5.0mm/0.474ct Loose Stone (Rose Cut)
Sale price¥6,980
Russian Demantoid Garnet (Horsetail) 4.2mm/0.325ct Loose Stone
Sale price¥59,800
Sri Lankan Sinhalite 0.434ct Loose Stone
Sale price¥8,800
Mexican Water Opal (Faceted) 0.402ct Loose (Contrarus Opal)
Sale price¥12,800
![[12/7 22:00 Sale] Mexican Egg-in Opal 0.381ct Loose](http://store.karatz.jp/cdn/shop/files/PC053061_853dfbb9-2bb5-4b4f-abbd-aef4b76d3dd5.jpg?v=1766553969&width=4000)
[12/7 22:00 Sale] Mexican Egg-in Opal 0.381ct Loose
Sale price¥18,800
Sinhalite from Sri Lanka 0.456ct loose stone
Sale price¥9,800
Tanzanian Chrome Tourmaline 0.164ct Loose Stone
Sale price¥9,800
![[On Sale at 10 PM on December 7th] Madagascar Andesine Labradorite Moonstone (also known as Rainbow Moonstone) 0.178ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052855_857b4320-efea-4ef8-b2dc-ff8f43f91566.jpg?v=1765587147&width=2968)
![[12/7 22:00] Brazilian Rubellite 0.332ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052669.jpg?v=1765587579&width=4000)
[12/7 22:00] Brazilian Rubellite 0.332ct Loose Stone
Sale price¥12,800
![[12/7 22:00] American Peridot 0.385ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052641_37df0278-4a00-4c48-9087-8187fb202890.jpg?v=1765587659&width=4000)
[12/7 22:00] American Peridot 0.385ct Loose Stone
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.343ct Loose
Sale price¥12,800
Synthetic quartz 0.430ct loose stone (synthetic green quartz)
Sale price¥6,980
Brazilian Pink Tourmaline 5.0mm/0.484ct Loose Stone (Rose Cut)
Sale price¥8,800
![[1/4 22:00 Sale] Brazilian Tourmaline 0.270ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052284.jpg?v=1767484195&width=4000)
[1/4 22:00 Sale] Brazilian Tourmaline 0.270ct Loose Stone
Sale price¥5,980
![[1/4 22:00 Sale] Sri Lankan Chrysoberyl Cat's Eye 0.447ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052214.jpg?v=1767484195&width=4000)
![[1/2 22:00 Sale] Mexican Opal (Faceted) 0.261ct Loose (Contrarus Opal)](http://store.karatz.jp/cdn/shop/files/PC240121.jpg?v=1767275395&width=4000)
[1/2 22:00 Sale] Mexican Opal (Faceted) 0.261ct Loose (Contrarus Opal)
Sale price¥12,800
![[1/2 22:00 Sale] Mexican Fire Opal (Faceted) 0.401ct Loose (Contrarus Opal)](http://store.karatz.jp/cdn/shop/files/PC240043_ec518479-ffe7-45e0-b250-412a86f35bef.jpg?v=1767274443&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.