![[On Sale at 10 PM on December 7th] Madagascar Andesine Labradorite Moonstone (also known as Rainbow Moonstone) 0.178ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052855_857b4320-efea-4ef8-b2dc-ff8f43f91566.jpg?v=1765587147&width=2968)
![[12/9 22:00 Sale] Internally Flawless Diamond (H&C) 3.8mm/0.210ct Loose (F, IF, 3 Excellent H&C) GIA & Chuho](http://store.karatz.jp/cdn/shop/files/S__223027203.jpg?v=1761697297&width=1477)
![[12/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.170ct Loose](http://store.karatz.jp/cdn/shop/files/PC052497_8d01ae1d-df4a-445b-93cc-9dfe45a33753.jpg?v=1765757396&width=2729)
[12/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.170ct Loose
Sale price¥12,800
![[12/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.182ct Loose](http://store.karatz.jp/cdn/shop/files/PC052463_2ea7a367-cd92-45ff-8363-772d7c4d65a9.jpg?v=1765757397&width=2502)
[12/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.182ct Loose
Sale price¥9,800
[12/2 22:00] Greenland Sapphire 0.133ct Loose Stone with Certificate
Sale price¥14,800
[11/2 22:00 Sale] Sri Lankan Blue Sapphire 0.187ct Loose
Sale price¥29,800
[11/2 22:00] American Peridot 0.283ct Loose Stone
Sale price¥8,800
[11/3 22:00 Sale] Colombian Emerald 0.176ct Loose
Sale price¥59,800
[11/3 22:00] Colombian Emerald 0.126ct Loose
Sale price¥49,800
Russian Demantoid Garnet (Horsetail) 3.8mm/0.280ct Loose Stone
Sale price¥49,800
[10/31 22:00 Sale] German Auchenite 0.073ct Loose Stone
Sale price¥32,800
[On Sale 11/24 10pm] Brazilian Kasharai Amethyst 0.314ct Loose Stone
Sale price¥9,800
Russian Demantoid Garnet (Horsetail) 3.8mm/0.255ct Loose Stone
Sale price¥39,800
American Benitoite 0.175ct Loose Stone
Sale price¥128,000
Greenland Ruby 3.6mm/0.220ct Loose Stone with Certificate
Sale price¥39,800
Greenland Ruby 3.6mm/0.210ct Loose Stone with Certificate
Sale price¥45,800
German Auchenite 0.095ct loose stone
Sale price¥39,800
German Auchenite 0.085ct loose stone
Sale price¥45,800
German Auchenite 0.083ct loose stone
Sale price¥45,800
[12552618] Unheated Brazilian Paraiba Tourmaline 0.063ct loose stone
Sale price¥65,800
Russian Emerald 0.282ct Loose Stone (F1, Minor Enhancement) GIA
Sale price¥128,000
Afghanistan Hackmanite 0.091ct loose stone
Sale price¥18,800
German Auchenite 0.090ct loose stone
Sale price¥39,800
German Apatite 0.097ct loose stone
Sale price¥39,800
Sri Lankan saffron 0.116ct loose stone with certificate of authenticity
Sale price¥25,800
Paraiba tourmaline from Mozambique 0.154ct loose stone
Sale price¥19,800
Paraiba tourmaline from Mozambique, 3.5mm/0.172ct loose stone
Sale price¥15,800
Paraiba tourmaline from Mozambique, 3.2mm/0.119ct loose stone
Sale price¥9,800
Colombian mint-colored emerald 0.214ct loose stone
Sale price¥8,800
Zambian emerald 0.135ct loose stone
Sale price¥8,800
Mozambique pink sapphire 0.169ct loose stone
Sale price¥6,980
0.145ct loose pink sapphire from Madagascar
Sale price¥6,980
Pink sapphire 0.179ct loose stone
Sale price¥6,980
0.170ct loose blue sapphire from Madagascar
Sale price¥8,800
0.162ct loose blue sapphire from Madagascar
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.
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.