Australian boulder opal 1.868ct loose
Sale price¥18,800
Australian boulder opal 1.675ct loose
Sale price¥14,800
Australian boulder opal 28.880ct loose
Sale price¥59,800
Prehnite 3.870ct loose
Sale price¥3,980
Playnight 3.085ct loose
Sale price¥3,980
Prehnite 3.874ct loose
Sale price¥3,980
Australian boulder opal 9.120ct loose
Sale price¥98,000
Australian opal 14.837ct loose
Sale price¥98,000
1.527ct Australian Prehnite Loose Stone
Sale price¥12,800
Australian Prehnite 5.5mm/0.538ct Loose Stone
Sale price¥6,980
Australian boulder opal 13.190ct loose
Sale price¥18,800
Prehnite 0.818ct loose stone
Sale price¥3,980
Black opal 2.293ct loose
Sale price¥98,000
1.139ct Australian Prehnite loose stone
Sale price¥8,800
Australian black opal 0.544ct loose stone
Sale price¥18,800
Australian Prehnite 6.0mm/1.004ct loose stone (rose cut)
Sale price¥8,800
Australian Prehnite 6.0mm/0.993ct loose stone (rose cut)
Sale price¥8,800
Australian Rainbow Lattice Sunstone 0.876ct Loose Stone
Sale price¥19,800
Australian Rainbow Lattice Sunstone 0.811ct Loose Stone
Sale price¥15,800
Australian Rainbow Lattice Sunstone 1.313ct Loose Stone
Sale price¥12,800
Australian Rainbow Lattice Sunstone 1.914ct Loose Stone
Sale price¥19,800
Australian Rainbow Lattice Sunstone 0.633ct Loose Stone
Sale price¥8,800
Australian Rainbow Lattice Sunstone 0.795ct Loose Stone
Sale price¥8,800
Australian Prehnite 5.4mm/0.475ct loose stone
Sale price¥6,980
Australian black opal 4.528ct loose
Sale price¥39,800
Pt900/Pt850 Australian Black Opal 0.37ct Diamond 0.73ct Necklace
Sale price¥198,000
Australian Black Opal 0.386ct Loose Stone
Sale price¥39,800
Australian Shell Opal (Shell Opal) 51.801ct Rough Stone
Sale price¥25,800
Australian black opal 9.709ct loose stone
Sale price¥158,000
Australian Shell Opal (Shell Opal) 73.321ct Rough Stone
Sale price¥49,800
Australian black opal 0.310ct loose
Sale price¥8,800
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.