Custom Cut
Blue sapphire 0.287ct loose
Sale price¥12,800
Bicolor Fluorite 0.763ct Loose
Sale price¥9,800
Tanzanian Mandarin Garnet 2.039ct Loose Stone
Sale price¥8,800
Tanzanian Rhodolite Garnet 0.448ct Loose Stone
Sale price¥6,980
Tanzanian Rhodolite Garnet 0.775ct Loose Stone
Sale price¥9,800
Tanzanian Rhodolite Garnet 0.810ct Loose Stone
Sale price¥9,800
Tanzanite 0.760ct loose stone (sugarloaf cut)
Sale price¥9,800
Synthetic Moissanite 6.0mm/0.688ct Loose Stone
Sale price¥9,800
Bolivian Ametrine 36.887ct loose stone
Sale price¥98,000
Bolivian Ametrine 16.867ct loose stone
Sale price¥39,800
Synthetic rutile 0.942ct loose stone
Sale price¥14,800
Synthetic Opal 1.804ct Loose
Sale price¥14,800
Mexican Fire Opal 0.718ct Loose
Sale price¥9,800
Mexican Fire Opal 0.593ct Loose (Faceted Cut)
Sale price¥9,800
Almandine Garnet 0.660ct Loose
Sale price¥6,980
Brazilian Amethyst 9.749ct Loose Stone
Sale price¥15,800
Brazilian Amethyst 12.9mm/7.637ct Loose Stone
Sale price¥12,800
Indian Moonstone 8mm/1.879ct Loose
Sale price¥6,980
Emerald 0.310ct loose
Sale price¥12,800
Amethyst 9.860ct loose stone
Sale price¥18,800
Nigerian bicolor tourmaline 0.379ct loose stone
Sale price¥8,800
Canary Yellow Tourmaline from Mozambique 0.142ct loose stone
Sale price¥8,800
Canary Yellow Tourmaline from Mozambique 0.170ct loose stone
Sale price¥8,800
Brazilian Imperial Topaz 0.744ct Loose Stone
Sale price¥12,800
Tanzanite from Tanzania 0.272ct loose stone
Sale price¥8,800
Tanzanian green sapphire 0.303ct loose stone
Sale price¥9,800
Sri Lankan Yellow Sapphire 0.267ct Loose
Sale price¥14,800
[12549597 published] Goshenite 0.439ct loose
Sale price¥5,980
[12550864] 0.227ct loose zoisite from Tanzania
Sale price¥6,980
[12550838] Brazilian Limonite in Topaz 4.680ct Loose Stone
Sale price¥11,800
[12552167] Purple spinel 0.880ct loose stone
Sale price¥14,800
[12550865] 0.203ct loose zoisite from Tanzania
Sale price¥6,980
Mica in Quartz 0.758ct Loose Stone
Sale price¥6,980
Myanmar Violet Spinel 0.426ct Loose
Sale price¥8,800
Australian Rainbow Lattice Sunstone 1.746ct Loose Stone
Sale price¥15,800
Sky blue topaz 1.719ct loose stone
Sale price¥9,800
Brazilian dendritic quartz 4.587ct loose stone
Sale price¥12,800
Brazilian Pink Tourmaline 0.862ct Loose Stone
Sale price¥15,800
Turkish pink diaspore 0.205ct loose stone
Sale price¥12,800
Brazilian Pink Tourmaline 0.470ct Loose Stone
Sale price¥12,800
Brazilian Pink Tourmaline 0.561ct Loose Stone
Sale price¥9,800
Brazilian pink tourmaline 0.968ct loose stone
Sale price¥25,800
Vietnam Aquamarine 0.494ct Loose Stone
Sale price¥8,800
Sky blue topaz 0.830ct loose stone
Sale price¥6,980
Brazilian Blue Tourmaline 0.196ct Loose
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.