Custom Cut
Bicolor tourmaline 9.199ct loose stone
Sale price¥9,800
Bicolor tourmaline 3.468ct loose stone
Sale price¥6,980
Bicolor tourmaline 7.532ct loose stone
Sale price¥9,800
Bicolor tourmaline 7.809ct loose stone
Sale price¥9,800
Pakistani Oil in Quartz 0.328ct Loose Stone
Sale price¥8,800
Tanzanite from Tanzania 0.492ct loose stone
Sale price¥14,800
Myanmar pink spinel 0.520ct loose stone
Sale price¥12,800
Brazilian Moss Agate 1.065ct Loose Stone
Sale price¥12,800
Goshenite 0.306ct loose stone
Sale price¥6,980
Nigerian Aventurine Aquamarine 1.164ct Loose Stone
Sale price¥12,800
Goshenite 0.852ct loose stone
Sale price¥8,800
Tanzanite from Tanzania 1.250ct loose stone
Sale price¥22,800
Kunzite from Afghanistan 0.799ct loose stone
Sale price¥6,980
Tanzania Zoisite 1.000ct Loose Stone
Sale price¥19,800
Tanzania Bicolor Zoisite 0.645ct Loose Stone
Sale price¥12,800
YAG (Yttrium Aluminum Garnet) 6.5mm/1.551ct Loose Stone
Sale price¥19,800
Synthetic rutile 5.8mm/0.915ct loose stone
Sale price¥18,800
Brazilian bicolor tourmaline 0.502ct loose stone
Sale price¥12,800
Nigerian Aventurine Aquamarine 0.471ct Loose Stone
Sale price¥8,800
Brazilian Sky Blue Topaz (untreated) 1.376ct loose stone
Sale price¥12,800
Chinese bicolor fluorite 1.215ct loose stone
Sale price¥7,980
Sri Lankan Star Sapphire 5.225ct Loose
Sale price¥98,000
Brazilian Medusa Quartz (Paraiba Quartz) 1.945ct Loose Stone
Sale price¥24,800
Brazilian Goshenite 0.771ct loose stone
Sale price¥6,980
Chinese bicolor fluorite 0.950ct loose stone
Sale price¥6,980
Colombian pyrite emerald 8.044ct loose stone
Sale price¥188,000
Canary Yellow Tourmaline from Mozambique 0.223ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 1.334ct loose stone
Sale price¥9,800
Oregon Sunstone from the United States 0.292ct loose stone
Sale price¥8,800
Oregon Sunstone from the United States 1.132ct loose stone
Sale price¥15,800
Synthetic Alexandrite 0.578ct loose stone
Sale price¥12,800
Synthetic Alexandrite 0.841ct loose stone
Sale price¥15,800
Synthetic Alexandrite 0.287ct loose stone
Sale price¥8,800
Sri Lankan Moonstone 1.959ct Loose
Sale price¥12,800
Sri Lankan Moonstone 0.561ct Loose
Sale price¥6,980
Nigerian Yellow Beryl (Heliodor) 4mm/0.188ct Loose Stone
Sale price¥3,980
South African Rhodochrosite 0.990ct Loose Stone by Nikkei
Sale price¥128,000
Tanzania Bicolor Zoisite 0.216ct Loose Stone
Sale price¥3,980
Tanzania Bicolor Zoisite 0.130ct Loose Stone
Sale price¥3,980
Tanzania Bicolor Zoisite 0.278ct Loose Stone
Sale price¥4,980
Tanzania Bicolor Zoisite 0.357ct Loose Stone
Sale price¥6,980
Tanzanian Almandine Garnet 1.103ct Loose Stone
Sale price¥9,800
Spanish Andalusite 5.7mm/0.706ct loose stone
Sale price¥9,800
Vietnam Aquamarine 0.626ct Loose
Sale price¥8,800
Vietnam Aquamarine 1.309ct Loose Stone
Sale price¥12,800
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.
業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。
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.