Brazilian Blue Topaz 5.5mm/0.754ct Loose Stone
Sale price¥5,980
American Benitoite 0.185ct Loose Stone
Sale price¥128,000
American Benitoite 0.175ct Loose Stone
Sale price¥128,000
Tanzanian Peristerite 5.1mm/0.503ct Loose Stone (Rose Cut)
Sale price¥9,800
Tanzanian Peristerite 5.1mm/0.458ct Loose Stone (Rose Cut)
Sale price¥9,800
Australian boulder opal 1.457ct loose stone
Sale price¥9,800
Brazilian London Blue Topaz 0.415ct Loose Stone
Sale price¥6,980
Australian Prehnite 1.758ct loose stone
Sale price¥9,800
Sri Lankan Peristerite 0.272ct Loose Stone
Sale price¥11,000
Brazilian bicolor tourmaline 0.621ct loose stone
Sale price¥12,800
[12552618] Unheated Brazilian Paraiba Tourmaline 0.063ct loose stone
Sale price¥65,800
[12547847 published] Bicolor tourmaline 0.398ct loose
Sale price¥8,800
American Benitoite 0.262ct loose stone
Sale price¥128,000
Bicolor sapphire 1.030ct loose from Windsor, Tanzania
Sale price¥89,800
Brazilian Paraiba tourmaline 0.370ct loose (CuO:1.0%, MnO:1.2%)
Sale price¥59,800
Paraiba tourmaline from Mozambique 0.266ct loose
Sale price¥25,800
Bicolor tourmaline 0.418ct loose
Sale price¥3,980
Australian boulder opal 0.874ct loose
Sale price¥3,980
Australian boulder opal 1.156ct loose
Sale price¥3,980
Australian boulder opal 1.173ct loose
Sale price¥5,980
Australian boulder opal 0.982ct loose
Sale price¥6,980
Brazilian Petalite 0.725ct Loose Stone
Sale price¥4,980
Brazilian Petalite 1.197ct Loose Stone
Sale price¥7,980
Afghanistan Hackmanite 0.134ct loose stone
Sale price¥6,980
Afghanistan Hackmanite 0.121ct loose stone
Sale price¥6,980
Australian Prehnite 0.707ct loose stone
Sale price¥6,980
[Rouge Cut] Brazilian Bicolor Tourmaline 0.578ct Loose
Sale price¥9,800
American Benitoite 2.2mm/0.270ct Loose Stone (Gradation Set)
Sale price¥69,800
Australian boulder opal 1.868ct loose
Sale price¥18,800
Australian boulder opal 1.675ct loose
Sale price¥14,800
Australian boulder opal 28.880ct loose
Sale price¥59,800
Benitoite 0.095ct loose
Sale price¥18,800
Benitoite 2.7mm/0.114ct loose
Sale price¥25,800
Prehnite 3.870ct loose
Sale price¥3,980
Playnight 3.085ct loose
Sale price¥3,980
Prehnite 3.874ct loose
Sale price¥3,980
Brazilian particolor Paraiba tourmaline 0.26ct loose GIA
Sale price¥598,000
Brazilian Paraiba tourmaline 0.226ct loose (CuO:0.7%, MnO:2.5%)
Sale price¥39,800
Pt950 Benitoite 0.10ct Aquamarine Blue Diamond Ring
Sale price¥89,800
Bicolor tourmaline 0.591ct loose (rose cut)
Sale price¥8,980
Bicolor tourmaline 0.435ct loose (rose cut)
Sale price¥5,980
Brazilian bicolor tourmaline 0.258ct loose stone
Sale price¥8,800
Afghanistan Hackmanite 0.091ct loose stone
Sale price¥18,800
Australian boulder opal 9.120ct loose
Sale price¥98,000
Brazilian Swiss Blue Topaz 1.065ct Loose Stone
Sale price¥11,000
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.