Birthstone list
Tourmaline cat's eye 0.910ct loose
Sale price¥4,980
Unheated silky pink sapphire from Vietnam 0.247ct loose
Sale price¥8,800
U.S. Peridot 5.1mm/0.573ct Loose
Sale price¥9,800
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
Tanzanian Chrome Tourmaline 0.164ct Loose Stone
Sale price¥9,800
![[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
![[12/10 22:00 Sale] Indian Moonstone 6.1mm/0.878ct Loose Stone (Rose Cut)](http://store.karatz.jp/cdn/shop/files/PC032133_305a91c4-6921-466f-b86b-6196b85216e3.jpg?v=1765630124&width=4000)
Brazilian Pink Tourmaline 5.0mm/0.484ct Loose Stone (Rose Cut)
Sale price¥8,800
Brazilian green tourmaline 0.821ct loose stone
Sale price¥12,800
Mexican cantera opal 15.542ct loose
Sale price¥15,800
Mexican cantera opal 9.422ct loose
Sale price¥25,800
Mexican cantera opal 7.563ct loose
Sale price¥15,800
Australian boulder opal 6.980ct loose
Sale price¥6,980
1.689ct loose teal blue sapphire
Sale price¥98,000
Sri Lankan star sapphire 12.679ct loose
Sale price¥158,000
Brazilian green tourmaline 3.102ct loose stone
Sale price¥69,800
Sri Lankan star sapphire 5.066ct loose
Sale price¥69,800
Australian black opal 2.736ct loose
Sale price¥98,000
Sri Lankan star sapphire 3.821ct loose
Sale price¥79,800
Kenyan Tsavorite 0.806ct Loose Stone
Sale price¥39,800
Sri Lankan star sapphire 3.317ct loose
Sale price¥59,800
Sri Lankan star sapphire 11.342ct loose
Sale price¥69,800
Sri Lankan blue sapphire 1.008ct loose stone
Sale price¥69,800
Mexican Cantera Opal 8.432ct Loose
Sale price¥39,800
Mexican Cantera Opal 9.166ct Loose
Sale price¥69,800
Zambian bicolor tourmaline 4.019ct loose stone
Sale price¥98,000
Purple Diamond 0.070ct Loose (FANCY VIVID PINK PURPLE, I-1)
Sale price¥188,000
Labradorite Moonstone 1.598ct Loose Stone Japanese-German
Sale price¥8,800
Brazilian Paraiba tourmaline in quartz 2.954ct loose
Sale price¥39,800
Yellow opal 17.283ct loose
Sale price¥29,800
White topaz 16.06ct loose
Sale price¥25,800
Bicolor grossular garnet 0.782ct loose
Sale price¥12,800
Paraiba tourmaline from Brazil 0.34ct loose GIA
Sale price¥79,800
Diamond 0.052ct loose (trapeze cut, VS class equivalent)
Sale price¥6,980
Loose Tourmaline from Brazil, 0.270 ct
Sale price¥5,980
2.275ct Australian Black Opal Loose Stone (Double Sided)
Sale price¥59,800
Mexican Opal (Faceted) 0.261ct Loose (Contrarus Opal)
Sale price¥12,800
Mexican Fire Opal (Faceted) 0.401ct Loose (Contrarus Opal)
Sale price¥15,800
Brazilian Amethyst 0.256ct Loose Stone
Sale price¥8,800
Green sapphire 0.607ct loose stone
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.170ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.182ct Loose
Sale price¥9,800
Sri Lankan Golden Sapphire 0.649ct Loose
Sale price¥29,800
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.