Paraiba tourmaline from Brazil 0.144ct loose (CuO:0.9%,MnO:2.8%)
Sale price¥55,800
Cobalt spinel from Vietnam 2mm/0.031ct loose Japanese-German edition
Sale price¥59,800
[On Sale 11/29 10pm] Greenland Ruby 0.253ct Loose Stone with Certificate
Sale price¥49,800
[On Sale 11/29 10pm] Greenland Ruby 0.266ct Loose Stone with Certificate
Sale price¥22,800
[12/2 22:00] Greenland Sapphire 0.133ct Loose Stone with Certificate
Sale price¥14,800
[11/29 22:00] Tanzanian Almandine Garnet 2.697ct Loose Stone
Sale price¥18,800
[11/29 22:00 Sale] Tanzanian Almandine Garnet 1.282ct Loose Stone
Sale price¥13,800
[12/2 22:00] Tanzanian Almandine Garnet 1.164ct Loose Stone
Sale price¥12,800
[12/2 22:00] Tanzanian Almandine Garnet 0.930ct Loose Stone
Sale price¥9,800
[11/26 22:00] Tanzanian Almandine Garnet 0.902ct Loose Stone
Sale price¥12,800
[11/29 22:00 Sale] Tanzanian Almandine Garnet 0.750ct Loose Stone
Sale price¥9,800
[11/26 22:00] Tanzanian Almandine Garnet 0.993ct Loose Stone
Sale price¥12,800
[On Sale 11/26 10pm] Tanzanian Bicolor Sapphire 0.380ct Loose (Teal)
Sale price¥18,800
![[12/7 22:00] Sri Lankan Purple Sapphire 0.393ct Loose](http://store.karatz.jp/cdn/shop/files/PB141583_f9d584a0-f81a-492c-bade-1a0d2087aeb6.jpg?v=1765066103&width=2545)
[12/7 22:00] Sri Lankan Purple Sapphire 0.393ct Loose
Sale price¥22,800
[On Sale 11/26 10pm] Brazilian Bicolor Tourmaline 4.497ct Loose Stone
Sale price¥69,800
[11/26 22:00 Sale] Sri Lankan Pink Zircon 1.991ct Loose
Sale price¥29,800
[11/27 22:00 Sale] Indian Iolite Sunstone 0.540ct Loose
Sale price¥8,800
[11/18 22:00] Oregon Sunstone from the United States, 2.594ct Loose
Sale price¥39,800
[11/18 22:00 Sale] Australian Prehnite 1.705ct Loose Stone
Sale price¥9,800
[11/18 22:00 Sale] Australian Prehnite 1.691ct Loose Stone
Sale price¥9,800
[11/17 22:00 Sale] Oregon Sunstone from the United States, 0.530ct Loose
Sale price¥15,800
Kenyan gold sheen sapphire 2.3mm/0.083ct loose
Sale price¥8,800
[Konpeito] Iolite 3.170ct loose
Sale price¥22,800
[11/16 22:00 Sale] Brazilian Blue Anatase 0.424ct Loose Stone
Sale price¥49,800
![[On sale November 16th at 10pm] [Limited to 32 stones] Namibian Mandarin Garnet Loose Stone (Round Cut, 2.5mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PB130022.jpg?v=1763179441&width=4000)
![[On sale November 15th at 10 PM] [Limited to 7 stones] One loose colorless apatite from Madagascar (all stones come with a certificate of authenticity, average 0.60 carat) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PB130098_64bd5f6d-3d76-4a2e-aa75-fb4deecc1091.jpg?v=1763171530&width=4000)
Felspar 1.478ct loose from Sri Lanka
Sale price¥3,980
Felspar 1.939ct loose from Sri Lanka
Sale price¥5,980
Sapphire from Madagascar 4.5mm/0.414ct loose
Sale price¥12,800
Sapphire from Madagascar 4.3mm/0.398ct loose
Sale price¥12,800
Hot Pink Spinel 0.203ct Loose (Mahenge Spinel)
Sale price¥8,800
Synthetic Moissanite 0.632ct loose stone (tie cut)
Sale price¥3,980
Synthetic Moissanite 0.509ct loose stone (tie cut)
Sale price¥3,980
Colombian trapiche emerald (reverse trapiche) 0.072ct loose
Sale price¥6,980
Colombian trapiche emerald (reverse trapiche) 0.095ct loose
Sale price¥6,980
Colombian trapiche emerald (reverse trapiche) 0.113ct loose
Sale price¥9,800
Colombian trapiche emerald (reverse trapiche) 0.196ct loose
Sale price¥15,800
Colombian trapiche emerald (reverse trapiche) 0.094ct loose
Sale price¥9,800
Spanish Andalusite 0.317ct loose stone
Sale price¥3,980
Andalusite 0.293ct loose stone
Sale price¥3,980
Andalusite 0.192ct loose stone
Sale price¥2,980
Wood opal 24.319ct loose
Sale price¥45,800
Red Beryl 2.9mm/0.096ct loose
Sale price¥25,800
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.