Custom Cut
Green tourmaline 0.637ct loose
Sale price¥8,800
[Rouge Cut] Pink Tourmaline from Brazil 0.440ct Loose
Sale price¥9,800
[Rouge Cut] Mexican Fire Opal 1.458ct Loose Stone
Sale price¥18,800
Mozambican Almandine Garnet 1.363ct Loose Stone
Sale price¥12,800
Loose Brazilian rose amethyst, 2.626 ct
Sale price¥9,800
Brazilian Amethyst 2.975ct Loose Stone
Sale price¥9,800
Indian Black Moonstone 1.871ct Loose Gemstone
Sale price¥12,800
Tanzanite from Tanzania 0.416ct loose stone
Sale price¥12,800
Yellow sapphire 0.294ct loose
Sale price¥8,800
Yellow sapphire 0.464ct loose
Sale price¥9,800
Cambodian blue zircon 0.258ct loose
Sale price¥6,980
Cambodian blue zircon 0.197ct loose
Sale price¥5,980
Cambodian blue zircon 0.217ct loose
Sale price¥6,980
Cambodian blue zircon 0.267ct loose
Sale price¥6,980
Myanmar color change zircon 1.00ct loose (reverse color change)
Sale price¥69,800
Brazilian Sky Blue Topaz 0.746ct Loose Stone
Sale price¥8,800
0.834 ct loose Sky Blue Topaz from Brazil
Sale price¥8,800
Madeira citrine 0.170ct loose
Sale price¥5,980
Tanzanian Rhodolite Garnet 1.203ct Loose
Sale price¥12,800
Tanzanian Rhodolite Garnet 0.763ct Loose Stone
Sale price¥9,800
Diamond 0.244ct Loose Stone (F, VS2, Flanders Cut)
Sale price¥39,800
Tanzanian Yellow Zircon 0.835ct Loose
Sale price¥9,800
Synthetic rutile 2.462ct loose stone
Sale price¥25,800
Synthetic Rutile 0.768ct Loose
Sale price¥12,800
Brazilian Rainbow Scapolite 0.328ct Loose Stone
Sale price¥9,800
Australian Prehnite 2.666ct loose stone
Sale price¥12,800
Australian Prehnite 0.908ct Loose
Sale price¥7,980
1.362ct loose Oregon sunstone from the United States
Sale price¥29,800
YAG (Yttrium Aluminum Garnet) 0.598ct loose stone
Sale price¥9,800
Sri Lankan Blue Sapphire (Ice Blue) 0.272ct Loose
Sale price¥12,800
Colombian pyrite emerald 8.044ct loose stone
Sale price¥188,000
Tourmaline 0.731ct loose
Sale price¥5,980
Mexican Fire Opal 0.277ct Loose (Faceted Cut)
Sale price¥5,980
Mexican Fire Opal 0.472ct Loose (Star Cut, Faceted Cut)
Sale price¥8,800
Mexican Fire Opal 0.564ct Loose (Faceted Cut)
Sale price¥12,800
0.742ct Bicolor Kyanite Loose Stone from Nepal
Sale price¥18,800
Kenyan Idocrase 0.650ct Loose
Sale price¥12,800
Tibetan Andesine 0.348ct Loose Stone
Sale price¥12,800
Australian Prehnite 2.779 ct Loose Stone
Sale price¥12,800
Tibetan Andesine 0.320ct Loose Stone
Sale price¥9,800
USA origin Peridot, 0.496 ct, 2-stone matched pair, loose
Sale price¥12,800
Tanzanian Mandarin Garnet 0.352ct Loose Stone
Sale price¥18,800
Mexican Fire Opal 0.191ct Loose (Faceted Cut)
Sale price¥12,800
Zimbabwean Sphene 2.520ct Loose Gemstone
Sale price¥59,800
Kunzite from Afghanistan 23.634ct loose stone
Sale price¥98,000
Brazilian Dumortierite in Quartz 0.382ct Loose Stone
Sale price¥9,800
Sri Lankan Twin Star Sapphire 5.225ct Loose
Sale price¥98,000
Sri Lankan triple star sapphire 1.743ct loose stone
Sale price¥128,000
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.