Diamond 3.8mm/0.197ct Loose (E, VVS-1, VeryGood)
Sale price¥39,800
Diamond 3.5mm/0.167ct Loose (D, VVS-2, VeryGood)
Sale price¥37,800
Diamond 3.8mm/0.211ct Loose Stone (E, VS-2, Excellent)
Sale price¥49,800
Diamond 3.8mm/0.216ct Loose (G, VS-1, Excellent)
Sale price¥49,800
Diamond 3.8mm/0.207ct Loose (F, VS-1, Excellent)
Sale price¥35,800
Madagascar Bekily Blue Garnet (Color Change Garnet) 0.167ct Loose
Sale price¥16,800
Madagascar Bekily Blue Garnet (Color Change Garnet) 0.188ct Loose Stone
Sale price¥18,800
0.186ct loose Bekily blue garnet (color-change garnet) from Madagascar
Sale price¥18,800
0.213ct Loose Bekily Blue Garnet (Color Change Garnet) from Madagascar
Sale price¥22,800
Zimbabwean Euclase 0.058ct loose stone
Sale price¥29,800
Zimbabwean Euclase 0.088ct loose stone
Sale price¥49,800
Rhodochrosite from Detroit City, USA 3.1mm/0.154ct loose stone
Sale price¥19,800
Rhodochrosite from Detroit City, USA 3.2mm/0.150ct loose stone
Sale price¥19,800
Pakistani Lapis Lazuli (Lazurite) 0.150ct Loose Stone with Certificate
Sale price¥29,800
Ceylon Blue Sapphire (Ice Blue) 0.289ct Loose
Sale price¥9,800
Madagascar Blue Sapphire 0.413ct Loose Stone
Sale price¥15,800
Unheated Brazilian Paraiba tourmaline 0.110ct loose AIGS
Sale price¥258,000
Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:1.2% MnO:1.2%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:1.4% MnO:1.1%)
Sale price¥35,800
[12551250] Brazilian oil-free emerald 0.120ct loose stone
Sale price¥110,000
0.113 ct Zimbabwe Euclase loose gemstone
Sale price¥45,800
Gray Diamond 0.158ct Loose (FANCY DARK GRAY, I-1)
Sale price¥45,800
Bicolor Zoisite 0.203ct loose stone
Sale price¥8,800
Bicolor Zoisite 0.229ct loose stone
Sale price¥6,980
Green tourmaline 0.090ct loose stone
Sale price¥5,980
Unheated Bicolor Paraiba Tourmaline 0.092ct Loose GIA
Sale price¥188,000
Madagascar Blue Sapphire 0.347ct Loose Stone with Appraisal Report
Sale price¥25,800
American Anthill Garnet 4.0mm/0.359ct Loose
Sale price¥12,800
[Sale on March 22nd at 10 PM] Golden Zircon 0.416ct Loose Stone
Sale price¥9,800
Diamond 0.244ct Loose Stone (F, VS2, Flanders Cut)
Sale price¥39,800
Zimbabwean bi-color euclase from Zimbabwe, 0.109 ct, loose stone
Sale price¥59,800
0.175ct loose hot pink sapphire from Mozambique
Sale price¥15,800
Colombian emerald 0.155ct loose stone
Sale price¥29,800
0.338ct Canadian Green Diamond Rough (Sawable) - With Trigons
Sale price¥128,000
Russian Alexandrite 0.091ct Loose Stone
Sale price¥69,800
0.097ct Grandidierite Loose Stone from Madagascar
Sale price¥29,800
Colombian emerald 0.159ct loose stone
Sale price¥47,800
Pigeon Blood Ruby 0.250ct Loose Stone
Sale price¥79,800
Brazilian Medusa Quartz (Paraiba Quartz) 3.9mm/0.237ct Loose
Sale price¥15,800
0.343 ct Tanzanite Loose Gemstone from Tanzania
Sale price¥8,800
0.296ct Loose Tanzanite from Tanzania
Sale price¥12,800
Tanzanian Kornerupine 0.132ct Loose Stone
Sale price¥9,800
Colombian emerald 3.1mm/0.093ct loose stone
Sale price¥22,800
Tanzanian Mandarin Garnet 0.352ct Loose Stone
Sale price¥18,800
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.
KARATZ's Initiatives and Social Contributions
We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.
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.