Brazilian Unheated Bicolor Paraiba Tourmaline 0.105ct Loose GIA
Sale price¥198,000
Sri Lankan Blue Sapphire (Ice Blue) 0.271ct Loose (Princess Cut)
Sale price¥12,800
Sri Lankan Rhodolite Garnet 0.244ct Loose Stone, Japan-Germany Scale
Sale price¥8,800
Colombian emerald 0.202ct loose stone
Sale price¥59,800
Brazilian Imperial Topaz 0.398ct Loose Stone
Sale price¥12,800
Zimbabwean Euclase 0.169ct Loose Stone with Certificate of Authenticity
Sale price¥39,800
Tanzanite from Tanzania 0.237ct loose stone
Sale price¥8,800
Blue beryl (Macis beryl) 0.181ct loose stone
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.320ct Loose
Sale price¥15,800
Brazilian Aquamarine 0.176ct Loose Stone
Sale price¥8,800
Moldavite from former Czechoslovakia 0.094ct loose stone
Sale price¥6,980
American Red Beryl 0.217ct Loose
Sale price¥49,800
Synthetic Alexandrite 0.460ct loose stone
Sale price¥14,800
German Awinite 3.5mm/0.158ct loose stone
Sale price¥98,000
Brazilian Paraiba tourmaline 0.171ct loose stone (CuO: 1.7%, MnO: 2.3%)
Sale price¥98,000
Yellow Diamond (Cabochon Cut) 0.237ct Loose
Sale price¥35,800
Yellow Diamond (Cabochon Cut) 0.324ct Loose
Sale price¥39,800
Yellow Diamond (Cabochon Cut) 0.176ct Loose
Sale price¥29,800
Colombian trapiche emerald (reverse trapiche) 0.178ct rough stone
Sale price¥15,800
Pezzotite from Madagascar 0.257ct loose
Sale price¥15,800
Myanmar Red Spinel 3.5mm/0.182ct Loose Stone
Sale price¥8,800
Zimbabwe Bicolor Euclase 3.5mm/0.192ct Loose Stone
Sale price¥39,800
Bicolor sapphire 0.301ct loose
Sale price¥18,800
[On sale 7/3 at 22:00] Madagascar bicolor sapphire 0.232ct loose stone
Sale price¥15,800
[On sale 7/3 at 22:00] Madagascar bicolor sapphire 0.188ct loose stone
Sale price¥12,800
Namibian Jeremejevite 0.055ct loose stone with certificate
Sale price¥15,800
Namibian Jeremejevite 0.066ct loose stone with certificate
Sale price¥18,800
Namibian Jeremejevite 0.147ct loose stone with certificate
Sale price¥29,800
Brazilian Morganite 0.405ct loose stone
Sale price¥7,980
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.375ct Loose Stone
Sale price¥18,800
Veilinite from Pakistan (Vailinite) 0.168ct loose
Sale price¥39,800
Colombian emerald cat's eye 0.084ct loose
Sale price¥6,980
Paraiba tourmaline from Brazil 0.200ct loose (CuO: 0.7%, MnO: 4.0%)
Sale price¥29,800
Nigerian Cobalt Garnite 0.175ct Loose Stone, Japan-Germany Exchange
Sale price¥35,800
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.