Oval Cut
Mexican Fire Opal 3.425ct Loose
Sale price¥29,800
Australian Opal 0.760ct Loose
Sale price¥12,800
Australian Opal 0.315ct Loose
Sale price¥5,980
Australian Opal 0.440ct Loose
Sale price¥8,800
Australian Opal 1.203ct Loose
Sale price¥12,800
Australian black opal 1.744ct loose
Sale price¥39,800
Mexican Cantera Opal 15.195ct Loose
Sale price¥18,800
Mexican Fire Opal 1.104ct Loose
Sale price¥9,800
Australian black opal 2.277ct loose stone (play of color on both sides)
Sale price¥34,800
Benitoite 0.080ct loose
Sale price¥12,800
Benitoite 0.084ct loose stone
Sale price¥12,800
American Red Beryl 0.109ct Loose
Sale price¥29,800
Benitoite 0.300ct loose stone (cabochon cut)
Sale price¥12,800
Benitoite 0.536ct loose stone (cabochon cut)
Sale price¥12,800
[KEN] Pink spinel from Myanmar 0.604ct loose
Sale price¥9,800
Benitoite 0.311ct loose stone (cabochon cut)
Sale price¥12,800
Lepidocrocite in quartz 1.096ct loose
Sale price¥9,800
Lepidocrocite in quartz 1.324ct loose
Sale price¥6,980
Lepidocrocite in quartz 0.532ct loose
Sale price¥6,980
Dioptase from Namibia 0.150ct loose Japanese-German book
Sale price¥59,800
Blue Tourmaline 1.460ct Loose Stone Japan-Germany Exchange
Sale price¥29,800
South African rhodochrosite 2.477ct loose Japanese-German edition
Sale price¥398,000
[Koshu precious stone cutter pluethree] Colombian emerald 2.018ct loose
Sale price¥98,000
Rutilated Quartz (Rutile Quartz) 7.440ct Loose (Sun Rutilated Quartz)
Sale price¥25,800
Brazilian lepidocrocite in quartz 0.992ct loose
Sale price¥4,980
Russian demantoid garnet (horsetail recognized) 0.119ct loose
Sale price¥29,800
Russian demantoid garnet (horsetail recognized) 0.141ct loose
Sale price¥39,800
Brazilian Santa Maria Aquamarine 0.181ct loose
Sale price¥6,980
American red beryl 0.116ct loose
Sale price¥29,800
Tanzanian Kornerupine Cat's Eye 0.725ct Loose Stone
Sale price¥4,980
Tanzanian Kornerupine Cat's Eye 1.539ct Loose Stone
Sale price¥9,800
Brazilian Paraiba tourmaline in quartz 0.819ct loose
Sale price¥15,800
Montana Sapphire 0.235ct loose (yellow sapphire)
Sale price¥8,800
Montana Sapphire 0.515ct loose (bicolor sapphire)
Sale price¥19,800
Montana Sapphire 0.361ct loose (yellow sapphire)
Sale price¥14,800
Montana Sapphire 0.561ct loose (bicolor sapphire)
Sale price¥22,800
Montana Sapphire 0.443ct loose (green sapphire)
Sale price¥15,800
Montana Sapphire 0.397ct loose (bicolor sapphire)
Sale price¥15,800
Montana sapphire 0.359ct loose (blue sapphire)
Sale price¥15,800
Montana Sapphire 0.449ct loose (bicolor sapphire)
Sale price¥17,800
Indian alexandrite cat's eye 0.422ct loose
Sale price¥12,800
Lazurite in quartz from Madagascar 1.090ct loose
Sale price¥14,800
Myanmar Violet Spinel 0.776ct Loose
Sale price¥12,800
![[10/12 22:00 Sale] Unheated Royal Blue Sapphire 0.640ct Loose AIGS](http://store.karatz.jp/cdn/shop/files/P8213746_91b36791-d977-4116-8c2b-7807206ada9b.jpg?v=1760067338&width=2552)
[10/12 22:00 Sale] Unheated Royal Blue Sapphire 0.640ct Loose AIGS
Sale price¥158,000
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.