Unheated sapphire 2.430ct loose GIA
Sale price¥298,000
Royal blue sapphire 1.220ct loose stone
Sale price¥298,000
Cornflower blue sapphire 0.490ct loose stone
Sale price¥98,000
[12560244] Bicolor Zoisite 0.508ct Loose Stone
Sale price¥7,980
[12560246] Green Zoisite 1.316ct Loose Stone
Sale price¥15,800
Bicolor sapphire 0.334ct loose
Sale price¥9,800
Bicolor sapphire 0.149ct loose
Sale price¥6,980
Bicolor sapphire 0.323ct loose
Sale price¥9,800
White sapphire 0.464ct loose
Sale price¥9,800
White sapphire 0.418ct loose
Sale price¥12,800
Yellow sapphire 0.385ct loose
Sale price¥9,800
White sapphire 0.364ct loose
Sale price¥9,800
White sapphire 0.212ct loose
Sale price¥6,980
White sapphire 4.5mm/0.414ct loose
Sale price¥12,800
White sapphire 0.338ct loose
Sale price¥9,800
Purple spinel 0.825ct loose stone
Sale price¥5,980
Sri Lankan Yellow Sapphire 0.300ct Loose
Sale price¥15,800
Zimbabwean sphene 0.457ct loose stone
Sale price¥8,800
Zimbabwean sphene 0.393ct loose stone
Sale price¥8,800
Myanmar Red Spinel 0.174ct Loose Stone
Sale price¥8,800
Cambodian blue zircon 4.203ct loose
Sale price¥39,800
Madeira Citrine 6mm/0.914ct loose
Sale price¥8,800
Bicolor Zoisite 1.785ct loose
Sale price¥49,800
Bicolor sapphire 0.853ct loose stone
Sale price¥9,800
Montana Sapphire 1.9mm/0.033ct loose
Sale price¥4,980
Montana Sapphire 2.8mm/0.098ct Loose Stone (Yellow)
Sale price¥6,980
Pink sapphire from Greenland 0.754ct loose with certificate
Sale price¥25,800
Yellow sapphire from Sri Lanka 6mm/0.816ct loose
Sale price¥18,800
Yellow sapphire from Sri Lanka 6mm/0.962ct loose
Sale price¥18,800
Myanmar pink spinel 0.325ct loose stone
Sale price¥6,980
Myanmar Purple Spinel 0.312ct Loose Stone
Sale price¥3,980
Lavender spinel 1.285ct loose
Sale price¥39,800
0.324ct loose pink sapphire from Madagascar
Sale price¥12,800
Madagascar sapphire 0.298ct loose stone
Sale price¥12,800
Madagascar sapphire 0.289ct loose stone
Sale price¥12,800
Madagascar sapphire 0.503ct loose stone
Sale price¥15,800
Tanzanian Zircon 4.138ct Loose Stone
Sale price¥39,800
Tanzanian Brown Zircon 0.642ct Loose Stone
Sale price¥8,800
Cambodian Blue Zircon (Ratanakiri Blue) 2.607ct Loose Stone
Sale price¥59,800
Brazilian Green Spodumene 2.899ct Loose Stone
Sale price¥12,800
Brazilian Green Spodumene 2.433ct Loose Stone
Sale price¥18,800
Brazilian Green Spodumene 2.710ct Loose Stone
Sale price¥18,800
Brazilian Green Spodumene 1.918ct Loose Stone
Sale price¥9,800
Sri Lankan star sapphire 2.062ct loose
Sale price¥12,800
Cambodian Blue Zircon 0.521ct Loose Stone
Sale price¥5,980
Myanmar pink spinel 0.294ct loose stone
Sale price¥6,980
Oregon Sunstone from the United States 1.203ct loose stone
Sale price¥9,800
Brazilian Madeira Citrine 6.8mm/1.150ct Loose Stone
Sale price¥4,980
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.