Unheated Brazilian Paraiba tourmaline 0.110ct loose AIGS
Sale price¥258,000
Unheated Brazilian Color Change Paraiba Tourmaline 0.30ct Loose GIA
Sale price¥1,280,000
Unheated Pigeon Blood Ruby 0.380ct Loose Stone AIGS
Sale price¥79,800
South African diamond rough (sawable) 0.096ct rough (with trigon)
Sale price¥39,800
Synthetic rutile 6.2mm/1.165ct loose stone
Sale price¥19,800
Synthetic rutile 5mm/0.553ct loose stone
Sale price¥12,800
Synthetic Moissanite (Grey) 8.5mm/2.126ct Loose Stone
Sale price¥18,800
Synthetic Alexandrite 5.7mm/0.827ct Loose Stone
Sale price¥19,800
Moldavite from former Czechoslovakia 0.141ct loose stone
Sale price¥8,800
Russian Phenakite 0.520ct Loose Stone
Sale price¥24,800
Russian Phenakite 0.513ct Loose Stone
Sale price¥19,800
Russian oil-free emerald 0.570ct loose stone GIA
Sale price¥298,000
Russian demantoid garnet (horsetail recognized) 5.5mm/0.710ct loose
Sale price¥148,000
Russian demantoid garnet (horsetail recognized) 5.3mm/0.692ct loose
Sale price¥128,000
Russian Demantoid Garnet (Horsetail) 2.5mm/0.079ct Loose Stone
Sale price¥12,800
Russian demantoid garnet (horsetail recognized) 5.3mm/0.633ct loose
Sale price¥198,000
Russian demantoid garnet (horsetail recognized) 5.2mm/0.633ct loose
Sale price¥198,000
Russian Demantoid Garnet (Horsetail certified) 4.6mm/0.464ct loose stone
Sale price¥128,000
Russian Demantoid Garnet (Horsetail) 3.5mm/0.187ct Loose Stone
Sale price¥45,800
Russian Demantoid Garnet (Horsetail) 0.487ct Loose Stone
Sale price¥110,000
Russian demantoid garnet (horsetail recognized) 0.291ct loose
Sale price¥49,800
Russian demantoid garnet (horsetail recognized) 0.291ct loose
Sale price¥69,800
Russian Diamond Rough (Sawable) 0.103ct Loose (Trigon)
Sale price¥25,800
Russian rough diamond (sawable) 0.125ct loose
Sale price¥29,800
Russian Yellow Diamond Rough (Sawable) 0.306ct Rough (Trigon)
Sale price¥98,000
Russian Alexandrite 2/5mm/0.070ct Loose Stone
Sale price¥59,800
0.167ct loose alexandrite from Russia
Sale price¥98,000
Russian Alexandrite 0.083ct loose stone
Sale price¥69,800
Russian Alexandrite 0.049ct loose stone
Sale price¥49,800
Royal Blue Sapphire 2.220ct Loose Stone AIGS
Sale price¥458,000
Royal blue sapphire 1.220ct loose stone
Sale price¥298,000
Royal Blue Sapphire 0.730ct Loose AIGS
Sale price¥158,000
Ruby 0.295ct loose
Sale price¥39,800
Royal Blue Sapphire 1.182ct Loose (Calfshead) AIGS
Sale price¥98,000
Ruby 0.284ct loose
Sale price¥15,800
Ruby 0.248ct loose
Sale price¥12,800
Montana Sapphire 3.7mm/0.272ct Loose Stone (Blue Sapphire)
Sale price¥9,800
Ruby 0.224ct loose
Sale price¥39,800
Mozambique Rhodolite Garnet 5.7mm/1.188ct Loose Stone
Sale price¥12,800
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.