Russian demantoid garnet (horsetail recognized) 0.291ct loose
Sale price¥49,800
Royal blue sapphire 1.44ct loose GIA
Sale price¥188,000
Benitoite 2.7mm/0.114ct loose
Sale price¥27,800
Synthetic rutile 6.2mm/1.165ct loose stone
Sale price¥19,800
Brazilian alexandrite 0.060ct loose
Sale price¥14,800
Brazilian alexandrite 0.082ct loose
Sale price¥18,800
Prehnite 3.870ct loose
Sale price¥6,980
Playnight 3.085ct loose
Sale price¥6,980
Prehnite 3.874ct loose
Sale price¥6,980
Myanmar pink spinel 0.291ct loose stone
Sale price¥6,980
[Panda cut] Rose quartz 5.081ct loose
Sale price¥8,800
[Panda cut] White quartz (milky quartz) 4.477ct loose
Sale price¥8,800
[Panda cut] Moonstone 5.476ct loose
Sale price¥8,800
[Camellia cut] Mexican fire opal 1.270ct loose with patch
Sale price¥98,000
Brazilian particolor Paraiba tourmaline 0.26ct loose GIA
Sale price¥598,000
Unheated Brazilian Color Change Paraiba Tourmaline 0.30ct Loose GIA
Sale price¥1,280,000
Montebrasite from Madagascar 0.328ct loose
Sale price¥4,980
Rutilated Quartz (Rutilated Quartz) 5.870ct Loose
Sale price¥6,980
Myanmar Purple Spinel 0.872ct Loose Stone
Sale price¥8,800
YAG (yttrium aluminum garnet) 1.792ct loose
Sale price¥12,800
YAG (Yttrium Aluminum Garnet) 6.5mm/1.774ct loose stone
Sale price¥12,800
YAG (Yttrium Aluminum Garnet) 6.5mm/1.548ct loose stone
Sale price¥12,800
Brazilian Paraiba tourmaline 0.226ct loose (CuO:0.7%, MnO:2.5%)
Sale price¥45,800
Bicolor sapphire 0.292ct loose
Sale price¥25,800
Orange Celestite 0.848ct Loose Japanese-German Edition
Sale price¥69,800
Bicolor pink star sapphire from Mogok 0.360ct loose
Sale price¥24,800
Bicolor pink euclase from Brazil 3.210ct loose Japanese-German edition
Sale price¥988,000
Bicolor tourmaline 0.591ct loose (rose cut)
Sale price¥9,800
Bicolor tourmaline 0.435ct loose (rose cut)
Sale price¥6,980
Pink tourmaline 0.482ct loose stone
Sale price¥6,980
Pink tourmaline 1.404ct loose stone
Sale price¥19,800
Ruby 0.194ct loose
Sale price¥8,800
Zircon 0.991ct loose stone
Sale price¥8,800
Zircon 0.848ct loose stone
Sale price¥8,800
Tanzanian zircon 0.942ct loose stone
Sale price¥8,800
1.008ct Tanzanian orange zircon loose stone
Sale price¥12,800
Tanzanian orange zircon 0.813ct loose stone
Sale price¥6,980
Tagtupite from Greenland 0.477ct loose
Sale price¥14,800
Ruby 0.472ct loose
Sale price¥6,980
Pink star sapphire 0.619ct loose
Sale price¥7,980
Cornel pin cat's eye 0.513ct loose
Sale price¥6,980
Cornel pin cat's eye 0.791ct 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.