Nigerian bicolor tourmaline 0.379ct loose stone
Sale price¥6,980
[12550887] Paraiba Tourmaline from Mozambique 0.784ct loose stone
Sale price¥128,000
[Calafuri] K18 Blue Sapphire and Diamond Ring Appraisal Report
Sale price¥128,000
Rough diamond from Sierra Leone (sawable) 0.089ct rough (trigon)
Sale price¥27,800
Rough diamond (sawable) from Russia, 0.148ct rough diamond (trigon)
Sale price¥49,800
Diamond (cabochon cut) 0.206ct loose
Sale price¥45,800
Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:2.0%, MnO:2.2%)
Sale price¥35,800
Sky blue topaz 1.719ct loose stone
Sale price¥8,800
Brazilian Pink Tourmaline 0.862ct Loose Stone
Sale price¥12,800
Brazilian Blue Tourmaline 0.196ct Loose
Sale price¥6,980
Brazilian Green Tourmaline 2.218ct Loose
Sale price¥25,800
Brazilian Bicolor Tourmaline 7.2mm/1.326ct Loose Stone
Sale price¥18,800
Namibian Green Tourmaline 7.0mm/1.206ct Loose Stone (Lagoon Tourmaline)
Sale price¥59,800
Chameleon Diamond Green Diamond 0.122ct Loose (FANCY GRAY GREEN, SI2)
Sale price¥69,800
Brazilian Imperial Topaz 0.746ct Loose
Sale price¥18,800
Zimbabwean rough green diamond (sawable) 0.228ct rough (trigon)
Sale price¥79,800
0.183ct Trapiche Emerald Loose Stone from Colombia
Sale price¥39,800
Rough diamond from Botswana (sawable) 0.118ct rough (trigon)
Sale price¥29,800
Botswana rough diamond (sawable) 0.090ct rough (trigon)
Sale price¥22,800
Rough diamond from Botswana (sawable) 0.087ct (trigon)
Sale price¥21,800
0.210 ct Colombian Trapiche Emerald Loose Stone
Sale price¥39,800
Tanzanite from Tanzania, 0.372ct Loose Stone
Sale price¥14,800
【Carafuru】K18WG Diamond 1.03ct Pendant Top
Sale price¥128,000
[12550851] 2.944ct Mozambique pink tourmaline loose stone
Sale price¥39,800
0.065ct loose Paraiba tourmaline from Brazil (CuO: 1.6%, MnO: 2.4%)
Sale price¥49,800
South African diamond rough (sawable) 0.110ct rough
Sale price¥22,800
South African diamond rough (sawable) 0.085ct rough
Sale price¥15,800
Brazilian dendritic quartz 4.587ct loose stone
Sale price¥9,800
Brazilian pink tourmaline 0.968ct loose stone
Sale price¥18,800
Tanzanian pink tourmaline 0.558ct loose stone
Sale price¥9,800
Bicolor Zoisite 1.100ct Loose Stone (Bicolor Tanzanite)
Sale price¥18,800
Lavender Tanzanite 0.784ct loose stone
Sale price¥12,800
Sky blue topaz 1.051ct loose stone
Sale price¥8,800
Bicolor tourmaline 1.329ct loose
Sale price¥9,800
Bicolor tourmaline 0.429ct loose
Sale price¥5,980
Bicolor Tourmaline 0.378ct Loose Stone (Hexagonal Cut)
Sale price¥8,800
Pink tourmaline 0.819ct loose
Sale price¥9,800
Pink tourmaline 0.539ct loose stone (heart shape)
Sale price¥9,800
[Colorfri] K18 Akoya Pearl and 0.08ct Diamond Ring with Certificate
Sale price¥49,800
【COLORFLE】Pt900/K18 Diamond 0.22ct Ring with Certificate
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.