Brazilian Imperial Topaz 0.349ct Loose Stone
Sale price¥12,800
Brazilian Paraiba tourmaline in quartz 0.871ct loose
Sale price¥18,800
Ruby 0.106ct loose
Sale price¥12,800
Australian black opal 0.959ct loose stone
Sale price¥18,800
Golden Iolite (Cordierite) 0.321ct loose stone
Sale price¥12,800
Synthetic rutile 1.210ct loose stone
Sale price¥24,800
YAG (Yttrium Aluminum Garnet) 1.171ct loose stone
Sale price¥14,800
YAG (Yttrium Aluminum Garnet) 1.357ct loose stone
Sale price¥16,800
Green Zoisite 0.703ct Loose Stone
Sale price¥22,800
Tanzanite 0.781ct loose stone
Sale price¥15,800
Nigerian Star Enstatite 0.880ct Loose Stone
Sale price¥14,800
Zoisite 1.290ct loose stone
Sale price¥19,800
Australian Opal 1.203ct Loose
Sale price¥12,800
Australian Opal 1.047ct Loose
Sale price¥14,800
Australian Opal 0.760ct Loose
Sale price¥12,800
Mexican Fire Opal 1.743ct Loose
Sale price¥24,800
Mexican Fire Opal 2.235ct Loose
Sale price¥26,800
Zimbabwean Blue Apatite (UV type) 1.061ct loose stone
Sale price¥12,800
Mexican Fire Opal 3.425ct Loose
Sale price¥29,800
Zimbabwean Blue Apatite (UV type) 0.703ct loose stone
Sale price¥11,000
[Cat cut] Dendritic agate 13.569ct loose stone
Sale price¥12,800
[Cat cut] Dendritic agate 6.757ct loose stone
Sale price¥12,800
Australian black opal 0.357ct loose stone
Sale price¥12,800
Afghanistan Hackmanite 0.418ct loose stone
Sale price¥12,800
Ethiopian Opal 2.131ct Loose
Sale price¥12,800
Mexican Fire Opal 1.877ct Loose
Sale price¥14,800
Myanmar trapichel ruby 0.216ct loose
Sale price¥15,800
Myanmar Trapiche Ruby 0.342ct Loose
Sale price¥15,800
Myanmar Trapiche Ruby 0.250ct Loose
Sale price¥15,800
Lavender Tanzanite 0.784ct loose stone
Sale price¥14,800
Bicolor Zoisite 0.450ct Loose Stone (Bicolor Tanzanite)
Sale price¥18,800
Bicolor Zoisite 1.100ct Loose Stone (Bicolor Tanzanite)
Sale price¥19,800
Tanzanite 4.8mm/0.494ct loose stone
Sale price¥15,800
Tanzanite 1.004ct loose stone
Sale price¥22,800
Russian Demantoid Garnet (Horsetail) 2.9mm/0.194ct Loose Stone
Sale price¥29,800
Sri Lankan Star Sapphire 1.225ct Loose
Sale price¥15,800
Sri Lankan Star Sapphire 1.682ct Loose
Sale price¥15,800
Sri Lankan Star Sapphire 1.339ct Loose
Sale price¥15,800
Brazilian alexandrite 0.060ct loose
Sale price¥12,800
Brazilian alexandrite 0.051ct loose
Sale price¥11,000
Brazilian alexandrite 0.058ct loose
Sale price¥12,800
Brazilian alexandrite 0.061ct loose
Sale price¥12,800
White Topaz 6.495ct Loose (Vortex Cut)
Sale price¥29,800
Madagascar Pezzottaite 0.554ct loose stone
Sale price¥19,800
Madagascar Pezzottaite 0.229ct loose stone
Sale price¥19,800
Ruby 0.289ct loose stone by Takakikyo
Sale price¥12,800
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.