Diamond 4.1mm/0.263 Loose (I, VVS2, 3Excellent H&C)
Sale price¥55,800
Diamond 3.8mm/0.200 loose (E, VVS1, VeryGood)
Sale price¥39,800
Diamond 3.8mm/0.220 Loose (H, VS1, 3Excellent H&C)
Sale price¥45,800
Diamond 3.8mm/0.209 Loose (G, VVS1, 3Excellent H&C)
Sale price¥59,800
Fancy Yellow Diamond 0.227 Loose (FANCY YELLOW, I-2)
Sale price¥59,800
Brazilian Limonite in Topaz 8.994ct loose stone
Sale price¥19,800
Brazilian Limonite in Topaz 6.856ct loose stone
Sale price¥29,800
Brazilian Limonite in Topaz 3.986ct loose stone
Sale price¥9,800
Brazilian Alexandrite 0.073ct loose stone (princess cut)
Sale price¥16,800
Brazilian Alexandrite 0.089ct loose stone (princess cut)
Sale price¥19,800
Ethiopian Opal 41.967ct Rough Stone
Sale price¥33,800
Ethiopian Opal 24.319ct Rough Stone
Sale price¥19,800
Ethiopian Opal 15.845ct Rough Stone
Sale price¥15,800
Ethiopian Opal 14.344ct Rough Stone
Sale price¥14,800
Brazilian Paraiba Tourmaline in Quartz 8.0mm/1.199ct Loose Stone
Sale price¥25,800
Brazilian Paraiba Tourmaline in Quartz 0.946ct Loose Stone
Sale price¥15,800
Brazilian Paraiba Tourmaline in Quartz 0.620ct Loose Stone
Sale price¥25,800
Brazilian Paraiba Tourmaline in Quartz 0.866ct Loose Stone
Sale price¥17,800
Brazilian Paraiba Tourmaline in Quartz 0.812ct Loose Stone
Sale price¥15,800
Madagascar sapphire 0.153ct loose stone
Sale price¥6,980
Madagascar sapphire 0.157ct loose stone
Sale price¥6,980
Madagascar sapphire 0.158ct loose stone
Sale price¥7,980
Madagascar sapphire 0.157ct loose stone
Sale price¥7,980
Silky pink sapphire from Madagascar 0.457ct loose stone
Sale price¥12,800
Silky pink sapphire from Madagascar 0.445ct loose stone
Sale price¥12,800
Australian white opal 2.092ct loose stone
Sale price¥9,800
Brazilian Chrysoberyl Cat's Eye 1.356ct Loose Stone
Sale price¥6,980
German Awinite 0.117ct loose stone
Sale price¥25,800
Orange Hackmanite from Afghanistan 1.101ct loose stone
Sale price¥19,800
Zambian Canary Yellow Tourmaline 1.483ct loose stone
Sale price¥39,800
South African Rhodochrosite 0.457ct loose stone
Sale price¥45,800
Tanzanian Rhodolite Garnet 0.649ct Loose Stone
Sale price¥8,800
Emerald 0.354ct loose stone
Sale price¥8,800
Brazilian Sky Blue Topaz (untreated) 2.013ct loose stone
Sale price¥12,800
Brazilian Sky Blue Topaz (untreated) 3.085ct loose stone
Sale price¥19,800
Synthetic Moissanite 5.9mm/0.648ct Loose Stone
Sale price¥9,800
Synthetic Moissanite 5.9mm/0.651ct Loose Stone
Sale price¥9,800
Brazilian bicolor tourmaline 0.891ct loose stone (princess cut)
Sale price¥15,800
Brazilian Garden Quartz 5.592ct Loose Stone
Sale price¥12,800
Brazilian Rock Crystal 0.936ct Loose Stone
Sale price¥6,980
Brazilian copper rutilated quartz 1.374ct loose stone
Sale price¥6,980
Brazilian copper rutilated quartz 1.657ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 2.211ct loose stone
Sale price¥12,800
Brazilian copper rutilated quartz 1.376ct loose stone
Sale price¥9,800
Brazilian copper rutilated quartz 2.073ct loose stone
Sale price¥9,800
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.