Custom Cut
Paraiba Tourmaline from Mozambique 0.234ct loose stone
Sale price¥12,800
Yellow sapphire 0.287ct loose stone
Sale price¥9,800
Pink sapphire 0.202ct loose stone
Sale price¥9,800
Pink sapphire 0.202ct loose stone
Sale price¥8,800
Purple sapphire 0.199ct loose stone
Sale price¥8,800
Yellow sapphire 0.229ct loose stone
Sale price¥9,800
Spodumene 9.001ct loose stone
Sale price¥29,800
Spodumene 9.730ct loose stone
Sale price¥29,800
Andalusite 0.672ct loose
Sale price¥12,800
Spanish Andalusite 0.440ct loose stone
Sale price¥8,800
Spanish Andalusite 0.435ct loose stone
Sale price¥8,800
Almandine Garnet 1.255ct Loose Stone
Sale price¥14,800
Mexican Opal 9.6mm/1.803ct Loose (Contralus Opal)
Sale price¥69,800
[Koshu Precious Stones plusthree] Citrine 5.121ct Loose
Sale price¥39,800
![[Koshu Precious Stones Plusthree] Tibetan Andesine 7.873ct [Collaboration] Loose Stone (Color Change Andesine)](http://store.karatz.jp/cdn/shop/files/collage_4f5b4421-c714-46aa-aee2-16359b25e490.png?v=1714140601&width=2000)
Unheated Mozambique Ruby 2.7mm/0.135ct Loose
Sale price¥19,800
Pakistani Oil in Quartz 1.337ct Loose Stone (Moving Bubbles)
Sale price¥19,800
Brazilian Aquamarine 0.874ct Loose Stone (Phantom Cut)
Sale price¥8,800
Brazilian Dumortierite in Quartz 0.495ct loose stone
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.387ct loose stone
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.432ct Loose Stone
Sale price¥6,980
Kenyan Tsavorite 0.379ct loose stone
Sale price¥35,800
Tanzanite 1.004ct loose stone
Sale price¥22,800
Bicolor Zoisite 1.100ct Loose Stone (Bicolor Tanzanite)
Sale price¥19,800
Lavender Tanzanite 0.784ct loose stone
Sale price¥14,800
Topaz 0.950ct loose stone
Sale price¥8,800
Mexican Fire Opal 1.833ct Loose
Sale price¥49,800
Mexican Fire Opal 1.424ct Loose
Sale price¥49,800
White Topaz 6.495ct Loose (Vortex Cut)
Sale price¥29,800
Bicolor Fluorite 0.909ct Loose
Sale price¥6,980
Bicolor fluorite 1.332ct loose stone
Sale price¥6,980
Green tourmaline 0.621ct loose stone
Sale price¥9,800
Green tourmaline 0.457ct loose stone
Sale price¥9,800
Diamond 0.320ct loose (D, VS2)
Sale price¥79,800
Salt and pepper diamond 0.446ct loose
Sale price¥39,800
Myanmar Leuco Garnet 0.324ct loose stone
Sale price¥39,800
[Cat cut] Dendritic agate 13.569ct loose stone
Sale price¥12,800
[Cat cut] Dendritic agate 6.757ct loose stone
Sale price¥12,800
[Rouge cut] Rhodolite garnet 0.410ct loose stone
Sale price¥8,800
Synthetic Moissanite 7.999ct loose stone
Sale price¥39,800
Synthetic Moissanite 8.417ct Loose Stone
Sale price¥49,800
Zoisite 1.290ct loose stone
Sale price¥19,800
Nigerian Star Enstatite 0.880ct Loose Stone
Sale price¥14,800
Green Zoisite 0.703ct Loose Stone
Sale price¥22,800
Synthetic Moissanite 8.931ct loose stone
Sale price¥55,800
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.