Unheated sapphire 2.430ct loose GIA
Sale price¥298,000
YAG (yttrium aluminum garnet) 7.5mm/2.410ct loose
Sale price¥12,800
YAG (yttrium aluminum garnet) 7.3mm./2.150ct loose
Sale price¥12,800
Brazilian Pink Imperial Topaz 2.794ct Loose Japanese-German Edition
Sale price¥128,000
Pink tourmaline cat's eye 3.800ct loose
Sale price¥8,800
[12559903] 2.991ct Brazilian Imperial Topaz Loose Stone
Sale price¥158,000
Tourmaline cat's eye 4.790ct loose
Sale price¥6,980
Tourmaline cat's eye 4.590ct loose
Sale price¥12,800
Diamond 2.810ct rough stone
Sale price¥9,800
[On Sale at 10 PM on August 17th] Mexican Cantera Opal 2.125ct Loose
Sale price¥39,800
Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 3.188ct Loose Stone
Sale price¥15,800
Yellow tourmaline 2.290ct loose
Sale price¥8,800
Cambodian blue zircon 3.322ct loose
Sale price¥29,800
Cambodian blue zircon 4.203ct loose
Sale price¥39,800
Colombian Euclase from Colombia 4.869ct loose
Sale price¥55,800
[Konpeito] Iolite 3.330ct loose
Sale price¥25,800
Tanzanite 2.726ct loose
Sale price¥110,000
Sealight 2.737ct loose
Sale price¥22,800
Color change Andesine 2.311ct loose
Sale price¥25,800
Colombian Euclase 3.543ct loose
Sale price¥39,800
Tanzanite 2.418ct loose
Sale price¥55,800
Synthetic moissanite 10.5mm/4.197ct loose (Portuguese cut)
Sale price¥29,800
[Camellia Cut] Ametrine 11mm/4.207ct《Collaboration》Loose with patch
Sale price¥39,800
Black opal 2.293ct loose
Sale price¥98,000
Mexican Cantera Opal 4.456ct Loose
Sale price¥39,800
[Dandelion cut] YAG (yttrium aluminum garnet) 8mm/2.752ct loose
Sale price¥45,800
[On Sale at 10 PM on August 3rd] Tanzanian Zircon 4.138ct Loose Stone
Sale price¥39,800
Brazilian Green Spodumene 2.899ct Loose Stone
Sale price¥12,800
Brazilian Green Spodumene 2.433ct Loose Stone
Sale price¥18,800
[On sale at 10pm on August 15th] Sri Lankan Star Sapphire 2.062ct Loose
Sale price¥12,800
Brazilian dumortierite in quartz 4.230ct loose
Sale price¥12,800
Sri Lankan tourmaline 4.860ct loose stone (cushion cut)
Sale price¥12,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 3.041ct loose
Sale price¥18,800
Brazilian Dendritic Agate 3.554ct Loose Stone
Sale price¥2,980
Brazilian Dendritic Agate 2.301ct Loose Stone
Sale price¥2,980
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.