Mozambique rubellite 2.752ct loose stone
Sale price¥69,800
Mozambique Rubellite 2.141ct Loose Stone
Sale price¥69,800
Grandidierite from Madagascar 0.264ct loose stone
Sale price¥88,800
Brazilian Morganite 4.720ct loose stone
Sale price¥98,000
Tanzanian Mint Garnet 1.276ct Loose Stone
Sale price¥69,800
Brazilian Paraiba Tourmaline 0.200ct loose stone (CuO: 1.7%, MnO: 2.8%)
Sale price¥98,000
Brazilian Dolomite 4.070ct Loose Stone, Japan-Germany Mirror
Sale price¥98,000
Namibian Dioptase 0.134ct Loose Stone, Japan-Germany Mirror
Sale price¥59,800
[Koshu Precious Stone Cut] Scololite 6.039ct Loose Stone Patch
Sale price¥69,800
Purple zoisite from Tanzania 1.103ct loose Japanese German edition
Sale price¥98,000
Royal Blue Sapphire 1.182ct Loose (Calfshead) AIGS
Sale price¥98,000
Australian black opal 3.242ct loose stone
Sale price¥69,800
Bolivian Ametrine 36.887ct loose stone
Sale price¥98,000
Mexican Cantera Opal 13.531ct Loose
Sale price¥69,800
Sri Lankan cobalt spinel 0.281ct loose stone
Sale price¥59,800
Additional charge: K18WG (base metal) + 10,000 yen
Sale price¥88,200
Additional charge: K18YG (base metal) + 10,000 yen
Sale price¥83,200
Additional charge: K18YG (base metal) + 10,000 yen
Sale price¥83,200
Additional charge: K18PG (base metal) + 10,000 yen
Sale price¥73,200
Additional charge: K18WG (base metal) + 10,000 yen
Sale price¥80,200
Additional charge: K18YG (base metal) + 10,000 yen
Sale price¥75,200
Additional charge: K18YG (base metal) + 10,000 yen
Sale price¥75,200
Additional charge: K18PG (base metal) + 10,000 yen
Sale price¥55,200
Diamond (cabochon cut) 0.206ct loose
Sale price¥55,800
Namibian Jeremejevite 0.501ct loose stone (bicolor)
Sale price¥98,000
Namibian Green Tourmaline 7.0mm/1.206ct Loose Stone (Lagoon Tourmaline)
Sale price¥59,800
Spanish Sphalerite 2.374ct loose stone
Sale price¥79,800
Chameleon Diamond Green Diamond 0.122ct Loose (FANCY GRAY GREEN, SI2)
Sale price¥69,800
Mozambique colorless tourmaline (acroite) 3.542ct loose stone
Sale price¥69,800
[Moonsteiner] Pyrite in Quartz 18.288ct Loose
Sale price¥59,800
Twin star sapphire from Sri Lanka 3.003ct loose (Violet star sapphire)
Sale price¥59,800
Twin star sapphire from Sri Lanka 3.858ct loose (black star sapphire)
Sale price¥59,800
Twin star sapphire from Sri Lanka 2.523ct loose
Sale price¥98,000
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.