Sri Lankan Yellow Sapphire 0.349ct Loose
Sale price¥15,800
Brazilian Paraiba tourmaline 0.184ct raw stone (CuO:1.5%, MnO:0.6%)
Sale price¥12,800
Brazilian Paraiba tourmaline 0.180ct raw stone (CuO:1.8%, MnO:0.1%)
Sale price¥12,800
Tanzanian bicolor sapphire 0.279ct loose stone
Sale price¥18,800
Euclase from Brazil 0.210ct Ruth Japanese German edition
Sale price¥29,800
![[Koshu Precious Stones Plusthree] Sri Lankan Hessonite Garnet 0.99ct Loose Color "Collaboration" Patch](http://store.karatz.jp/cdn/shop/files/099ct-663728.jpg?v=1745883466&width=1038)
[Koshu Precious Stones plusthree] Bicolor Fluorite 5.030ct Loose Patch
Sale price¥29,800
Namibian Jeremejevite 0.153ct loose stone by Nikkei
Sale price¥15,800
Namibian Jeremejevite 0.118ct loose stone by Nikkei
Sale price¥12,800
Nigerian pink tourmaline 1.527ct loose stone
Sale price¥18,800
Mexican Hyalite Opal 4.9mm/0.348ct Loose
Sale price¥12,800
Mexican Hyalite Opal 6.9mm/1.134ct Loose
Sale price¥25,800
![[On Sale at 10 PM on September 14th] Mexican Hyalite Opal 6.1mm/0.652ct Loose](http://store.karatz.jp/cdn/shop/files/collage_34b5d1b8-6bc5-48fb-9ca5-3944313a240e.png?v=1757727531&width=2250)
Mexican Hyalite Opal 5.2mm/0.439ct Loose Stone
Sale price¥12,800
Mexican Hyalite Opal 5.0mm/0.378ct Loose Stone
Sale price¥11,000
Brazilian Aquamarine 0.578ct Loose Stone
Sale price¥12,800
Brazilian Dumortierite in Quartz 0.368ct loose stone
Sale price¥12,800
Sri Lankan Brown Zircon 1.121ct Loose Stone
Sale price¥12,800
Tanzanian mint diopside 0.229ct loose stone
Sale price¥12,800
Madagascar Grandidierite 0.180ct loose stone
Sale price¥14,800
Tanzanian bicolor sapphire 0.262ct loose stone
Sale price¥19,800
Madagascar Apatite Cat's Eye 2.80ct Loose Stone
Sale price¥29,800
Madagascar Blue Apatite Cat's Eye 1.734ct Loose Stone
Sale price¥15,800
Paraiba tourmaline from Brazil 3.1mm/0.151ct loose (CuO:1.1%, MnO:3.8%)
Sale price¥29,800
Mexican Cantera Opal 2.038ct Loose
Sale price¥29,800
Mexican Cantera Opal 3.167ct loose stone (faceted cut)
Sale price¥12,800
Tibetan Andesine 2.020ct Loose Stone
Sale price¥18,800
Kunzite from Afghanistan 7.741ct loose stone
Sale price¥15,800
Australian Rainbow Lattice Sunstone 0.590ct Loose
Sale price¥12,800
Australian Rainbow Lattice Sunstone 0.876ct Loose Stone
Sale price¥19,800
Andesine Labradorite (commonly known as Rainbow Moonstone) 0.568ct loose
Sale price¥12,800
Madagascar Green Sapphire 0.435ct Loose
Sale price¥13,800
Russian Alexandrite 0.049ct loose stone
Sale price¥29,800
Mexican fire opal (faceted cut) 0.387ct loose stone
Sale price¥14,800
Russian Demantoid Garnet (Horsetail certified) 2.6mm/0.091ct loose stone
Sale price¥15,800
Russian demantoid garnet (horsetail recognized) 0.105ct loose
Sale price¥14,800
Mexican Fire Opal (Faceted Cut) 0.918ct Loose
Sale price¥12,800
Mexican Fire Opal (Faceted Cut) 0.525ct Loose
Sale price¥12,800
Synthetic black opal 2.996ct loose stone
Sale price¥29,800
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.