Sakura Shape Brazilian Topaz 8.1mm/2.211ct Loose Stone
Sale price¥29,800
Internally Flawless Diamond (H&C) 0.204ct Loose (F, IF, 3Excellent H&C)
Sale price¥59,800
Brazilian Green Tourmaline 4.613ct Loose Stone
Sale price¥39,800
Bicolor Sapphire 5.640ct Loose Stone with Certificate
Sale price¥98,000
Diamond (cabochon cut) 0.401ct loose (star depending on angle)
Sale price¥49,800
Cassiterite 4.2mm/0.676ct Loose Stone with Certificate of Authenticity
Sale price¥16,800
Internal Diamond 0.25 Loose (F, IF, 3Excellent) GIA
Sale price¥69,800
Zimbabwe bicolor euclase 0.081ct loose stone
Sale price¥39,800
Bulgarian green sphalerite 1.052ct loose Japanese-German edition
Sale price¥128,000
Brazilian Bicolor Tourmaline 0.716ct Loose Stone (Rose Cut)
Sale price¥6,980
Sri Lankan bicolor sapphire 1.020ct loose stone
Sale price¥59,800
Pakistani Lazurite (Azurite) 0.290ct loose stone
Sale price¥98,000
Oregon Sunstone from the United States 1.951ct loose stone
Sale price¥12,800
Brazilian Green Tourmaline 1.431ct Loose Stone
Sale price¥12,800
Brazilian Rhodonite 2.316ct loose stone
Sale price¥39,800
Cambodian Zircon 1.547ct Loose Stone
Sale price¥22,800
Madagascar Apatite 2.020ct Loose
Sale price¥15,800
Pyrope Almandine Garnet 1.112ct Loose Stone
Sale price¥12,800
Santa Maria Aquamarine 1.265ct Loose Stone
Sale price¥18,800
Madagascar Iolite 3.129ct loose stone
Sale price¥39,800
Ethiopian Sunstone 0.661ct Loose
Sale price¥9,800
Ethiopian Sunstone 1.045ct Loose
Sale price¥15,800
Nigerian Morganite 2.745ct loose stone
Sale price¥12,800
Orange spinel 0.225ct loose stone
Sale price¥12,800
Vietnam Aquamarine 0.585ct Loose
Sale price¥12,800
Tanzanite from Tanzania 0.520ct loose stone
Sale price¥12,800
Tanzanite from Tanzania 0.642ct loose stone
Sale price¥12,800
Tanzanite 0.477ct loose stone (princess cut) from Tanzania
Sale price¥12,800
Brazilian unheated pink imperial topaz (sherry pink) 0.231ct loose stone
Sale price¥18,800
Brazilian Green Tourmaline 0.561ct Loose Stone
Sale price¥25,800
Spanish Sphalerite 12.5mm/9.860ct Loose Stone
Sale price¥98,000
Spanish Sphalerite 5.6mm/0.841ct loose stone
Sale price¥12,800
Spanish Sphalerite 5.6mm/0.956ct loose stone
Sale price¥14,800
American Benitoite 0.051ct loose stone (princess cut)
Sale price¥15,800
American Benitoite 0.058ct loose stone (princess cut)
Sale price¥15,800
American Benitoite 3.1mm/0.129ct loose stone
Sale price¥59,800
American Benitoite 0.150ct loose stone (emerald cut)
Sale price¥69,800
American Benitoite 0.167ct loose stone
Sale price¥59,800
Brazilian mint color tourmaline 0.849ct loose stone
Sale price¥29,800
Madagascar Iolite 2.272ct loose stone
Sale price¥19,800
Synthetic Alexandrite 0.560ct loose stone
Sale price¥14,800
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.