Synthetic rutile 6mm/1.091c loose stone
Sale price¥22,800
Synthetic rutile 6.2mm/1.165ct loose stone
Sale price¥19,800
Synthetic rutile 6mm/1.061ct loose
Sale price¥8,800
Synthetic rutile 5mm/0.553ct loose stone
Sale price¥15,800
Synthetic rutile 1.210ct loose stone
Sale price¥24,800
Synthetic moissanite 6mm/0.748ct loose (star cut)
Sale price¥19,800
Synthetic Moissanite (Grey) 8.5mm/2.126ct Loose Stone
Sale price¥18,800
[E33 Shinjuku] Synthetic Alexandrite 5.7mm/0.827ct Loose Stone
Sale price¥19,800
Moldavite from former Czechoslovakia 0.135ct loose stone
Sale price¥9,800
Moldavite from former Czechoslovakia 0.141ct loose stone
Sale price¥8,800
Russian Phenakite 0.513ct Loose Stone
Sale price¥19,800
Russian oil-free emerald 0.640ct loose GIA
Sale price¥198,000
Russian oil-free emerald 0.570ct loose stone GIA
Sale price¥298,000
![[E33 Shinjuku] Russian oil-free emerald 0.223ct loose](http://store.karatz.jp/cdn/shop/files/PA161020.jpg?v=1760937369&width=4000)
[E33 Shinjuku] Russian oil-free emerald 0.223ct loose
Sale price¥25,800
Russian demantoid garnet (horsetail recognized) 6.3mm/1.058ct loose
Sale price¥398,000
Russian demantoid garnet (horsetail recognized) 5.5mm/0.710ct loose
Sale price¥148,000
Russian demantoid garnet (horsetail recognized) 5.3mm/0.633ct loose
Sale price¥198,000
Russian Demantoid Garnet (Horsetail certified) 3.6mm/0.293ct loose stone
Sale price¥49,800
Russian Demantoid Garnet (Horsetail) 3.5mm/0.187ct Loose Stone
Sale price¥45,800
Russian demantoid garnet (horsetail recognized) 0.291ct loose
Sale price¥49,800
[E33 Shinjuku] Russian rough diamond (sawable) 0.125ct loose
Sale price¥29,800
Russian demantoid garnet (horsetail recognized) 0.214ct loose
Sale price¥49,800
Russian demantoid garnet (horsetail recognized) 0.291ct loose
Sale price¥69,800
[E33 Shinjuku] Russian rough diamond (sawable) 0.103ct loose (trigon)
Sale price¥25,800
[E33 Shinjuku] Russian Chrome Diopside 1.365ct Loose Stone
Sale price¥15,800
[E33 Shinjuku] Russian Alexandrite 2/5mm/0.070ct Loose Stone
Sale price¥59,800
Russian Yellow Diamond Rough (Sawable) 0.306ct Rough (Trigon)
Sale price¥98,000
[E33 Shinjuku] Russian Alexandrite 2.8mm/0.111ct Loose Stone
Sale price¥69,800
[E33 Shinjuku] Russian Alexandrite 0.167ct Loose Stone
Sale price¥98,000
[E33 Shinjuku] Russian Alexandrite 0.083ct Loose Stone
Sale price¥69,800
[E33 Shinjuku] Russian Alexandrite 0.049ct Loose Stone
Sale price¥49,800
[E33 Shinjuku] Russian Alexandrite 0.074ct Loose Stone
Sale price¥59,800
Russian Alexandrite 0.049ct loose stone
Sale price¥29,800
Royal Blue Sapphire 2.220ct Loose Stone AIGS
Sale price¥458,000
Royal blue sapphire 1.44ct loose GIA
Sale price¥188,000
Royal blue sapphire 1.220ct loose stone
Sale price¥298,000
Red spinel 0.346ct loose stone
Sale price¥22,800
Ruby 0.289ct loose stone by Takakikyo
Sale price¥12,800
Rainbow Quartz (Iridescent Quartz) 0.256ct Loose Stone, Japan-Germany
Sale price¥98,000
Ruby 0.284ct loose
Sale price¥15,800
Ruby 0.248ct loose
Sale price¥12,800
Montana Sapphire 4mm/0.330ct Loose (Yellow Sapphire)
Sale price¥7,980
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.