Demantoid garnet 38.035ct rough stone from Madagascar
Sale price¥9,800
Demantoid garnet 15.468ct rough stone from Madagascar
Sale price¥9,800
![[On Sale at 10 PM on January 17th] Sri Lankan Bicolor Sapphire 0.586ct Loose](http://store.karatz.jp/cdn/shop/files/P1150063.jpg?v=1768480240&width=4000)
![[On Sale at 10 PM on January 17th] Tanzanite from Tanzania 0.680ct Loose Stone](http://store.karatz.jp/cdn/shop/files/S__227811339_57c11a81-db13-4386-a0e3-70fd2fe4c513.jpg?v=1768527612&width=1063)
![[On Sale at 10 PM on January 17th] 3.583ct Australian Black Opal Loose Stone (Double-Sided)](http://store.karatz.jp/cdn/shop/files/P1150158.jpg?v=1768478549&width=4000)
![[On Sale at 10 PM on January 17th] 1.091ct Loose Australian Black Opal](http://store.karatz.jp/cdn/shop/files/P1150211.jpg?v=1768527186&width=4000)
![[On Sale at 10 PM on January 17th] Australian Black Opal 0.758ct Loose](http://store.karatz.jp/cdn/shop/files/P1150273.jpg?v=1768479106&width=4000)
[On Sale at 10 PM on January 17th] Australian Black Opal 0.758ct Loose
Sale price¥18,800
![[On sale at 10pm on January 31st] Kenyan Tsavorite 1.026ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1231904_ea4675c7-6b1f-4f9c-a0c6-a513fcc099d5.jpg?v=1769775144&width=2787)
[On sale at 10pm on January 31st] Kenyan Tsavorite 1.026ct Loose Stone
Sale price¥98,000
![[On Sale at 10 PM on January 21st] Brazilian Aquamarine 6.294ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1159837_6d28fe7f-f2b5-4149-86ad-a9e474dbfbba.jpg?v=1768826992&width=3245)
[On Sale at 10 PM on January 21st] Brazilian Aquamarine 6.294ct Loose Stone
Sale price¥188,000
![[On Sale at 10 PM on January 21st] Tanzanite from Tanzania 0.730ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1159967_520088ea-e309-45fd-9700-80e7c203627f.jpg?v=1768827136&width=2948)
![[On Sale at 10 PM on January 21st] Brazilian Green Tourmaline 1.233ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1159691_398f8f12-4f6e-4d7f-8173-0e3910d84df0.jpg?v=1768826939&width=2896)
![[On Sale at 10 PM on January 20th] Sri Lankan Bicolor Sapphire 0.607ct Loose](http://store.karatz.jp/cdn/shop/files/P1149673.jpg?v=1768773538&width=4000)
![[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 10pm on January 20th] Zimbabwean sphene 2.520ct loose stone](http://store.karatz.jp/cdn/shop/files/P1149599.jpg?v=1768773538&width=4000)
[On sale at 10pm on January 20th] Zimbabwean sphene 2.520ct loose stone
Sale price¥59,800
![[On sale at 10pm on January 20th] Zimbabwean sphene 2.067ct loose stone](http://store.karatz.jp/cdn/shop/files/P1149525.jpg?v=1768773538&width=4000)
[On sale at 10pm on January 20th] Zimbabwean sphene 2.067ct loose stone
Sale price¥59,800
![[On sale at 10pm on January 21st] Afghanistan Kunzite 9.214ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1149481_7d13580c-24ec-4402-9131-ac76f9112cd7.jpg?v=1768826939&width=3460)
![[On Sale at 10 PM on January 18th] Tanzanian Bicolor Grossular Garnet 2.997ct Loose](http://store.karatz.jp/cdn/shop/files/P1149249_c0ee05b5-ea8f-45c2-89b7-06852248544e.jpg?v=1768614095&width=3365)
![[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] Sri Lankan Star Ruby 5.0mm/1.062ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/P1010006_ac1a0c09-5a41-4a3f-b6bb-1fd57c6710b0.jpg?v=1768868469&width=4000)
![[On Sale at 10 PM on January 21st] Rainbow Garnet (Andradite Garnet) 6.7mm/1.488ct Loose Stone from Tenkawa Village, Nara Prefecture](http://store.karatz.jp/cdn/shop/files/PC042544_6ede3236-d3e4-44d5-a190-93898fe1bd84.jpg?v=1765631000&width=4000)
![[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 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)
South African gray diamond (makeable) 0.169ct rough stone
Sale price¥14,800
South African yellow diamond (makeable) 0.202ct rough stone
Sale price¥15,800
American benitoite 0.069ct loose
Sale price¥19,800
Paraiba tourmaline from Brazil 0.132ct loose (CuO:2.1%.MnO:2.2%)
Sale price¥188,000
Tibetan bicolor andesine 1.818ct loose
Sale price¥18,800
Pakistani oil-in quartz 0.535ct loose
Sale price¥14,800
Pakistani oil-in quartz 0.361ct loose
Sale price¥8,800
American benitoite 0.076ct loose
Sale price¥19,800
American benitoite 0.074ct loose
Sale price¥18,800
American benitoite 0.076ct loose
Sale price¥19,800
![[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 10 PM on January 25th] Brazilian Imperial Topaz 0.901ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/P1200846.jpg?v=1769145712&width=4000)
![[On Sale at 10 PM on January 25th] Brazilian Imperial Topaz 0.939ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/P1200794.jpg?v=1769241421&width=4000)
![[On Sale at 10 PM on January 25th] Russian Demantoid Garnet (Horsetail Certified) 2.6mm/0.096ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1201320_98a47827-e65b-4fe0-80e4-0a12c06f351f.jpg?v=1769241047&width=3112)
![[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 27th] Pakistani Ludwigite Peridot 0.915ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1212088_2b7204f1-c23d-45df-b520-7c048ce45850.jpg?v=1769301764&width=3080)
![[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 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] 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 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] American Peridot 0.969ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1212192_4f1037ff-83e4-4e50-bbf5-5ce8f8f67a59.jpg?v=1769429062&width=3083)
[On Sale at 10 PM on January 27th] American Peridot 0.969ct Loose Stone
Sale price¥25,800
![[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)
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.