Birthstone list
[On Sale 11/26 10pm] Tanzanian Bicolor Sapphire 0.380ct Loose (Teal)
Sale price¥18,800
[On Sale 11/26 10pm] Brazilian Bicolor Tourmaline 4.497ct Loose Stone
Sale price¥69,800
Kenyan gold sheen sapphire 2.3mm/0.083ct loose
Sale price¥8,800
Sapphire from Madagascar 4.5mm/0.414ct loose
Sale price¥12,800
Sapphire from Madagascar 4.3mm/0.398ct loose
Sale price¥12,800
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
Wood opal 24.319ct loose
Sale price¥45,800
[11/22 22:00] Sri Lankan Hessonite Garnet 1.968ct Loose Stone
Sale price¥12,800
[11/14 22:00 Sale] Brazilian Rose Amethyst 0.793ct Loose Stone
Sale price¥15,800
Brazilian bicolor tourmaline 2.047ct loose
Sale price¥29,800
[12544897 published] Bicolor sapphire 1.341ct loose
Sale price¥29,800
[12544888 published] Bicolor sapphire 0.704ct loose
Sale price¥14,800
Colombian trapiche emerald (reverse trapiche) 0.170ct loose
Sale price¥12,800
Colombian trapiche emerald (reverse trapiche) 0.188ct loose
Sale price¥12,800
Colombian trapiche emerald (reverse trapiche) 0.093ct loose
Sale price¥7,980
Diamond 0.061ct loose (trapeze cut, VS class equivalent)
Sale price¥7,980
Diamond 0.042ct loose (trapeze cut, VS class equivalent)
Sale price¥6,980
Diamond 0.039ct loose (trapeze cut, equivalent to VS class)
Sale price¥5,980
Madeira Citrine 7mm/0.938ct loose
Sale price¥3,980
Bicolor tourmaline 22.088ct loose
Sale price¥298,000
Mexican Fire Opal 4.2mm/0.182ct Loose
Sale price¥8,800
Blue tourmaline from Afghanistan 4.5mm/0.326ct loose
Sale price¥7,980
[11/10 22:00 Sale] Silky Pink Sapphire from Madagascar 1.050ct Loose GIT
Sale price¥128,000
Colombian oil-free emerald 0.290ct loose GIA
Sale price¥188,000
![[Available at 10 PM on November 8th] [Limited to 3 stones] Indian Andesine Labradorite (Rainbow Moonstone) Flower Carving, 6mm, 1 stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010023.jpg?v=1755868377&width=4000)
Yellow sapphire from Madagascar 0.232ct loose
Sale price¥6,980
Yellow sapphire from Madagascar 0.207ct loose
Sale price¥6,980
Madagascar sapphire 0.205ct loose
Sale price¥7,980
![[12/15 22:00] Tanzanian Almandine Garnet 11.0mm/6.787ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PB070854.jpg?v=1765689867&width=4000)
[12/15 22:00] Tanzanian Almandine Garnet 11.0mm/6.787ct Loose Stone
Sale price¥49,800
[12/3 22:00] Tanzanian Almandine Garnet 2.897ct Loose Stone
Sale price¥22,800
![[12/15 22:00 Sale] Tanzanian Rhodolite Garnet 1.935ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/PB070277.jpg?v=1764030167&width=4000)
[11/27 22:00 Sale] Brazilian Swiss Blue Topaz 13.287ct Loose
Sale price¥18,800
[11/20 22:00 Sale] Tanzanian Almandine Garnet 2.972ct Loose Stone
Sale price¥18,800
[11/20 22:00 Sale] Tanzanian Rhodolite Garnet 3.486ct Loose Stone
Sale price¥24,800
[11/22 22:00] Tanzanian Rhodolite Garnet 0.843ct Loose Stone
Sale price¥9,800
[11/20 22:00 Sale] Tanzanian Almandine Garnet 1.564ct Loose Stone
Sale price¥12,800
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.