Paraiba tourmaline from Mozambique 0.246ct loose
Sale price¥35,800
Sri Lankan Ratotta Topaz 9.926ct Loose (White Topaz)
Sale price¥15,800
Sri Lankan Ratotta Topaz 9.589ct Loose (White Topaz)
Sale price¥12,800
Sri Lankan Ratotta Topaz 4.170ct Loose (White Topaz)
Sale price¥7,980
Yellow diamond 0.212ct loose (FANCY DEEP ORANGY YELLOW, VS1)
Sale price¥45,800
Yellow diamond 0.291ct loose (FANCY INTENSE ORANGY YELLOW, SI2)
Sale price¥59,800
Yellow diamond 0.153ct loose (FANCY INTENSE YELLOW ORANGE, SI1)
Sale price¥35,800
Pink diamond 2.2mm/0.043ct loose (FANCY LIGHT PURPLISH PINK, SI2)
Sale price¥39,800
Diamond 0.051ct loose (trapeze cut, VS class equivalent)
Sale price¥7,980
Diamond 0.777ct loose (butterfly cut)
Sale price¥69,800
Brazilian Dumortierite in Quartz 1.266ct Loose Stone
Sale price¥12,800
Brazilian Dumortierite in Quartz 1.383ct Loose Gemstone
Sale price¥14,800
Brazilian Dumortierite in Quartz 1.559ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.803ct Loose
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.849ct Loose Gemstone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.867ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.880ct Loose Stone (Faceted Cut)
Sale price¥9,800
0.787 ct faceted Dumortierite in Quartz from Brazil
Sale price¥7,980
Brazilian Dumortierite in Quartz 0.690ct Loose Stone (Faceted Cut)
Sale price¥6,980
Brazilian Dumortierite in Quartz 1.112ct Loose Gemstone (Faceted Cut)
Sale price¥11,000
Brazilian Dumortierite in Quartz 0.937ct Loose (Faceted)
Sale price¥9,800
Brazilian Dumortierite in Quartz 3.009ct Loose Stone
Sale price¥29,800
Brazilian Dumortierite in Quartz 2.282ct Loose Gemstone
Sale price¥18,800
0.521ct Loose Brazilian London Blue Topaz
Sale price¥6,980
Diamond 0.244ct Loose Stone (F, VS2, Flanders Cut)
Sale price¥39,800
0.209ct Yellow Diamond Loose (Fancy Deep Brownish Yellow, VVS-2)
Sale price¥49,800
0.174ct Brown Diamond Loose (FANCY DARK BROWN, SI-2)
Sale price¥25,800
Pink Tourmaline from Brazil 6.782ct Loose
Sale price¥69,800
Tanzanian Tanzanite, 5.0mm/0.558ct Loose Stone
Sale price¥15,800
Tanzanite 0.753ct loose stone from Tanzania
Sale price¥25,800
Diamond rough (makeable) 0.284ct rough
Sale price¥12,800
Russian Demantoid Garnet (Horsetail Recognized) 5.1mm/0.664ct Loose Stone
Sale price¥188,000
Zambian bicolor tourmaline 4.142ct loose stone
Sale price¥98,000
0.338ct Canadian Green Diamond Rough (Sawable) - With Trigons
Sale price¥128,000
Angola Green Diamond Rough (Sawable) 0.528ct Rough (with Trigon)
Sale price¥198,000
Brazilian Paraiba tourmaline 0.065ct loose (CuO:2.0%, MnO:2.6%)
Sale price¥22,800
Tourmaline 0.731ct loose
Sale price¥5,980
Colombian trapiche emerald (reverse trapiche) 0.457ct rough stone
Sale price¥25,800
Green tourmaline 2.007ct loose
Sale price¥29,800
Green tourmaline 0.388ct loose
Sale price¥8,800
Brown Diamond 5.2mm/0.561ct Loose (FANCY DARK BROWN, SI2)
Sale price¥29,800
Loose Pink Diamond, 2.5mm/0.097ct (FANCY PINK, SI2, Princess Cut)
Sale price¥148,000
Paraiba tourmaline from Brazil 0.162ct loose
Sale price¥69,800
Paraiba tourmaline from Brazil 0.097ct loose
Sale price¥22,800
Tanzanite from Tanzania 0.889ct loose stone
Sale price¥18,800
Tanzanian Tanzanite 4.3mm/0.311ct Loose Stone
Sale price¥12,800
Tanzanite 0.579ct loose stone from Tanzania
Sale price¥5,980
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.