[Sold at 10 PM on September 5th] Pink sapphire 0.179ct loose stone
Sale price¥6,980
[Dandelion Cut] Madagascar Sphene 6.0mm/0.935ct Loose Stone
Sale price¥55,800
Dandelion Cut Andalusite from Spain, 6.0mm/0.835ct Loose Stone
Sale price¥55,800
[On sale at 10pm on September 6th] Russian emerald 0.249ct loose stone
Sale price¥158,000
[On sale at 10pm on September 6th] Russian emerald 0.269ct loose stone
Sale price¥79,800
Topaz 1.680ct loose stone
Sale price¥18,800
Mexican Topaz 1.66ct Loose Stone
Sale price¥15,800
Dumortierite in quartz 4.110ct loose
Sale price¥18,800
Oregon Sunstone 2.120ct loose
Sale price¥25,800
African bicolor tourmaline 0.950ct loose stone (phantom cut)
Sale price¥9,800
Russian demantoid garnet (horsetail recognized) 5.2mm/0.633ct loose
Sale price¥198,000
Russian demantoid garnet (horsetail recognized) 4.6mm/0.425ct loose
Sale price¥69,800
Russian demantoid garnet (horsetail recognized) 4.4mm/0.382ct loose
Sale price¥79,800
Russian demantoid garnet (horsetail recognized) 3.2mm/0.175ct loose
Sale price¥15,800
Aquamarine 15mm/10.190ct loose
Sale price¥69,800
Unheated sapphire 2.430ct loose GIA
Sale price¥298,000
Aquamarine 68.040ct loose
Sale price¥39,800
YAG (yttrium aluminum garnet) 1.870ct loose
Sale price¥9,800
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
Bicolor tourmaline 1.050ct loose
Sale price¥8,800
Bicolor tourmaline 0.780ct loose
Sale price¥9,800
Color change Andesine 1.67ct loose
Sale price¥25,800
Purple sapphire 0.313ct loose
Sale price¥6,980
Purple sapphire 0.220ct loose
Sale price¥3,980
Purple sapphire 0.240ct loose
Sale price¥4,980
Afghanite 0.496ct loose Japanese-German book
Sale price¥9,800
Tanzanite 41.690ct loose
Sale price¥2,480,000
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
Goethite in quartz 1.020ct loose
Sale price¥2,980
Peach benitoite 0.135ct loose Japanese-German book (orange/blue)
Sale price¥158,000
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.