American benitoite 0.102ct loose
Sale price¥28,800
American benitoite 0.098ct loose
Sale price¥25,800
American benitoite 0.187ct loose
Sale price¥48,800
Jeremejevite from Namibia 0.041ct loose
Sale price¥8,800
Jeremejevite from Namibia 0.145ct loose (contains iron oxide)
Sale price¥19,800
Russian demantoid garnet cat's eye (horsetail recognized) 0.171ct loose
Sale price¥22,800
Russian demantoid garnet cat's eye (horsetail recognized) 0.222ct loose
Sale price¥29,800
Mint green sapphire 0.348ct loose
Sale price¥12,800
Mint color tourmaline 0.115ct loose
Sale price¥5,980
Mint color tourmaline 0.198ct loose
Sale price¥5,980
Mint color tourmaline 0.229ct loose
Sale price¥5,980
Pink tourmaline 0.205ct loose
Sale price¥5,980
Bicolor sapphire from Madagascar 0.252ct loose
Sale price¥14,800
Bicolor sapphire from Madagascar 0.265ct loose
Sale price¥16,800
Bicolor sapphire from Madagascar 0.259ct loose
Sale price¥9,800
Bicolor sapphire from Madagascar 0.198ct loose
Sale price¥9,800
Bicolor sapphire from Madagascar 0.212ct loose
Sale price¥9,800
Yellow sapphire from Sri Lanka 0.222ct loose
Sale price¥12,800
Montebrasite 0.373ct loose
Sale price¥9,800
Unheated silky pink sapphire from Vietnam 0.197ct loose
Sale price¥12,800
Unheated silky pink sapphire from Vietnam 0.247ct loose
Sale price¥12,800
Russian demantoid garnet (horsetail recognized) 3.7mm/0.231ct loose
Sale price¥22,800
Russian demantoid garnet (horsetail recognized) 3.8mm/0.232ct loose
Sale price¥18,800
Unheated silky pink sapphire from Vietnam 0.175ct loose
Sale price¥7,980
Diamond 0.051ct loose (trapeze cut, VS class equivalent)
Sale price¥9,800
Bicolor sapphire 0.231ct loose
Sale price¥6,980
Bicolor sapphire 0.207ct loose
Sale price¥6,980
Bicolor sapphire 0.190ct loose
Sale price¥6,980
Brazilian Alexandrite 0.244ct Ruth (Hemachita Mine)
Sale price¥59,800
Brazilian alexandrite 0.112ct loose
Sale price¥13,800
Chrome tourmaline 0.300ct loose stone
Sale price¥3,980
Yellow diamond rough stone (makeable) 0.247ct rough stone
Sale price¥22,800
Red beryl 0.104ct loose
Sale price¥34,800
Red beryl 0.120ct loose
Sale price¥36,800
Purple Diamond 0.070ct Loose (FANCY VIVID PINK PURPLE, I-1)
Sale price¥188,000
White topaz 16.06ct loose
Sale price¥29,800
Paraiba tourmaline from Brazil 0.34ct loose GIA
Sale price¥59,800
Dioptase from Namibia 3.1mm/0.132ct loose Japanese-German edition
Sale price¥69,800
Paraiba tourmaline from Mozambique 0.256ct loose
Sale price¥18,800
Paraiba tourmaline from Mozambique 0.207ct loose
Sale price¥12,800
Indigolite tourmaline 0.260ct loose Japanese-German book
Sale price¥18,800
Diamond 0.052ct loose (trapeze cut, VS class equivalent)
Sale price¥8,800
Paraiba tourmaline from Mozambique 0.215ct loose
Sale price¥12,800
Zircon 0.416ct loose
Sale price¥4,980
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.