Sri Lankan star sapphire 1.487ct loose
Sale price¥12,800
Sri Lankan star sapphire 1.164ct loose
Sale price¥12,800
Unheated Ruby from Myanmar 0.433ct Ruth Japanese-German Edition
Sale price¥59,800
Australian boulder opal 2.470ct loose
Sale price¥8,800
Australian boulder opal 4.729ct loose
Sale price¥19,800
Aventurine Aquamarine Cat's Eye 1.567ct Loose
Sale price¥5,980
Scapolite Cat's Eye 9.733ct Loose
Sale price¥8,800
Quartz 96.732ct loose (explosion crystal)
Sale price¥4,980
Bicolor tanzanite 0.479ct loose
Sale price¥24,800
Spinel 1.680ct loose
Sale price¥8,800
Russian demantoid garnet (horsetail recognized) 5.2mm/0.702ct loose
Sale price¥228,000
Dioptase from Namibia 3.3mm/0.162ct loose Japanese-German edition
Sale price¥98,000
Hemimorphite 34.490ct loose
Sale price¥69,800
Pink tourmaline 0.516ct loose
Sale price¥6,980
Pink tourmaline 4.0mm/0.300ct loose stone
Sale price¥6,980
Mexican Fire Opal 1.150ct Loose
Sale price¥39,800
Oregon Sunstone 1.333ct Loose
Sale price¥12,800
Colombian pyrite in emerald 4.592ct loose
Sale price¥128,000
Cambodian blue zircon (Ratanakiri blue) 2.143ct loose
Sale price¥29,800
Cambodian blue zircon (Ratanakiri blue) 2.567ct loose
Sale price¥35,800
Sapphire 0.676ct loose (color shift)
Sale price¥16,800
Green sapphire 0.518ct loose (teal green)
Sale price¥9,800
Color change sapphire 0.946ct loose
Sale price¥39,800
Pink sapphire from Mozambique 0.213ct loose (hot pink sapphire)
Sale price¥14,800
Paraiba tourmaline from Mozambique 0.243ct loose
Sale price¥19,800
Unheated silky pink sapphire from Vietnam 0.426ct loose
Sale price¥18,800
Baddeleyite from Myanmar 0.279ct Ruth Japanese German edition
Sale price¥15,800
Chrysoberyl cat's eye from Sri Lanka 5.176ct loose
Sale price¥198,000
Brazilian bicolor tourmaline 1.554ct loose (tricolor tourmaline)
Sale price¥25,800
Montana Sapphire 3mm/0.155ct loose
Sale price¥23,800
Benitoite 0.091ct loose
Sale price¥24,800
Conch pearl 0.066ct loose
Sale price¥6,980
Madeira Citrine 7mm/0.938ct loose
Sale price¥5,980
Bicolor tourmaline 22.088ct loose
Sale price¥288,000
Oregon Sunstone 5.189ct Loose (Vortex Cut)
Sale price¥29,800
Mexican Fire Opal 4.2mm/0.182ct Loose
Sale price¥8,800
Blue tourmaline from Afghanistan 4.5mm/0.326ct loose
Sale price¥8,800
Felspar 2.993ct loose from Sri Lanka
Sale price¥8,800
Felspar 3.330ct loose from Sri Lanka
Sale price¥8,800
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.