Birthstone list
![[Sale on 5/17 at 10 PM] Brazilian Paraiba Tourmaline 0.038ct Loose Stone (CuO: 1.6%, MnO: 2.8%)](http://store.karatz.jp/cdn/shop/files/PC060216_faed4771-d083-4ba2-874c-ff26a6b9446c.jpg?v=1702080534&width=3190)
![[On sale May 17th at 10 PM] Brazilian Paraiba Tourmaline 0.038ct Loose Stone (CuO: 1.3%, MnO: 2.7%)](http://store.karatz.jp/cdn/shop/files/PC060276_1b9a5a08-e995-4c6b-8d72-51429efc4673.jpg?v=1702080791&width=3163)
Sri Lankan Blue Sapphire (Ice Blue) 0.584ct Loose
Sale price¥8,800
Pink tourmaline 1.157ct loose stone
Sale price¥12,800
[COLORFUL] Pt900 Diamond 1.00ct Pendant (Necklace)
Sale price¥49,800
Mexican Opal 9.6mm/1.803ct Loose (Contralus Opal)
Sale price¥49,800
Mozambique Aquamarine 0.216ct Loose Stone
Sale price¥6,980
Tanzanian Chrome Tourmaline 0.760ct Loose Stone
Sale price¥5,980
0.165ct Unheated Silky Pink Sapphire from Vietnam
Sale price¥5,980
Sri Lankan Star Sapphire 7.111ct Loose
Sale price¥59,800
Sri Lankan Star Sapphire 6.477ct Loose
Sale price¥49,800
Almandine Garnet 1.049ct Loose Stone
Sale price¥9,800
Almandine Garnet 0.814ct Loose Stone
Sale price¥7,980
Greenland sapphire 0.592ct loose stone
Sale price¥18,800
Paraiba tourmaline from Brazil 0.071ct loose
Sale price¥19,800
[On sale June 2 at 10 PM] Loose Diamond 3.7mm/0.197ct (H, VS-1, Good)
Sale price¥29,800
Sri Lankan Blue Sapphire 0.519ct Loose
Sale price¥14,800
Madagascar pink sapphire 0.243ct loose stone
Sale price¥8,800
Madagascar pink sapphire 0.346ct loose stone
Sale price¥15,800
Madagascar Blue Sapphire 0.302ct Loose
Sale price¥15,800
Madagascar Yellow Sapphire 4.4mm/0.417ct Loose
Sale price¥14,800
Madagascar Green Sapphire 0.253ct Loose
Sale price¥9,800
Paraiba tourmaline from Brazil 0.023ct loose
Sale price¥19,800
Paraiba tourmaline from Brazil 0.018ct loose
Sale price¥12,800
Color change sapphire 0.473ct loose stone (purple sapphire)
Sale price¥25,800
Paraiba tourmaline from Brazil 0.049ct loose
Sale price¥19,800
Paraiba tourmaline from Brazil 0.061ct loose
Sale price¥25,800
Yellow Opal 0.372ct Loose (Faceted Cut)
Sale price¥8,800
Pink tourmaline 0.845ct loose stone
Sale price¥12,800
Brazilian Paraiba Tourmaline 0.056ct Loose Stone (CuO:2.1%, MnO:2.2%)
Sale price¥39,800
0.062ct Loose Paraiba Tourmaline from Brazil (CuO: 1.7%, MnO: 2.5%)
Sale price¥47,800
Brazilian Paraiba Tourmaline 0.055ct Loose (CuO:1.9%, MnO:2.2%)
Sale price¥45,800
Loose 0.061ct Brazilian Paraiba Tourmaline (CuO: 1.7%, MnO: 2.2%)
Sale price¥49,800
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.