Ruth

Sphene from Madagascar 1.853ct loose Sale price¥24,800

Bicolor chrysoberyl from Madagascar 1.753ct loose Sale price¥25,800

Bicolor chrysoberyl from Madagascar 1.003ct loose Sale price¥14,800

Bicolor chrysoberyl from Madagascar 1.520ct loose Sale price¥18,800

Sri Lankan Zircon Cat's Eye 23.767ct Loose Sale price¥398,000

Russian Demantoid Garnet (Horsetail) 4.2mm/0.325ct Loose Stone Sale price¥59,800

Sri Lankan Sinhalite 0.434ct Loose Stone Sale price¥8,800

[12/7 22:00] Brazilian Dumortierite in Quartz 16.250ct Loose Stone Sale price¥9,800

American Peridot 5.1mm/0.573ct Loose Stone Sale price¥9,800

Mexican Water Opal (Faceted) 0.402ct Loose (Contrarus Opal) Sale price¥12,800

[12/7 22:00 Sale] Mexican Egg-in Opal 0.381ct Loose Sale price¥18,800

Sinhalite from Sri Lanka 0.456ct loose stone Sale price¥9,800

Blue beryl (Mashish beryl) 3.268ct loose stone Sale price¥25,800

Brazilian Yellow Beryl 0.913ct Loose Stone Sale price¥8,800

Tanzanian Chrome Tourmaline 0.164ct Loose Stone Sale price¥9,800

[12/7 22:00] Tanzanian Zoisite 1.312ct Loose Stone Sale price¥18,800

[12/7 22:00] Brazilian Rubellite 0.332ct Loose Stone Sale price¥12,800

[12/7 22:00] American Peridot 0.385ct Loose Stone Sale price¥8,800

Sri Lankan Yellow Sapphire 0.343ct Loose Sale price¥12,800

[12/9 22:00] Brazilian Lavender Quartz (Scorolite) 0.994ct Loose Stone Sale price¥8,800

[On Sale at 10 PM on December 9th] American Peridot 0.855ct Loose Stone (Lily Pad Inclusions) Sale price¥12,800

[12/6 22:00] Mexican Fire Agate 17.936ct Loose Stone Sale price¥49,800

Synthetic quartz 0.430ct loose stone (synthetic green quartz) Sale price¥6,980

[12/10 22:00 Sale] Indian Moonstone 6.1mm/0.878ct Loose Stone (Rose Cut) Sale price¥8,800

Brazilian Pink Tourmaline 5.0mm/0.484ct Loose Stone (Rose Cut) Sale price¥8,800

Mali Garnet (Grossular/Andradite Garnet) 0.741ct Loose Stone from the Republic of Mali with Certificate of Authenticity Sale price¥25,800

Brazilian Dumortierite in Quartz 1.131ct Loose Stone Sale price¥12,800

Synthetic Opal 0.856ct Loose (Synthetic Water Opal) Sale price¥8,800

Brazilian green tourmaline 0.821ct loose stone Sale price¥12,800

Bicolor Zoisite 0.581ct loose Sale price¥12,800

Spanish bicolor sphalerite 6.230ct loose Sale price¥69,800

Dendritic Agate 31.019ct Ruth Japanese/German Sale price¥6,980

Mexican cantera opal 15.542ct loose Sale price¥15,800

Mexican cantera opal 9.422ct loose Sale price¥25,800

Mexican cantera opal 7.563ct loose Sale price¥15,800

Australian boulder opal 6.980ct loose Sale price¥6,980

Red beryl 0.104ct loose Sale price¥29,800

Brazilian Euclase 1.240ct loose Sale price¥19,800

[Dandelion Cut] Tibetan Color-Change Andesine 8.0mm/1.883ct Loose Gemstone Sale price¥59,800

[Dandelion Cut] Tibetan Andesine 6.0mm/0.814ct Loose Stone Sale price¥49,800

Tibetan Bicolor Andesine Dandelion Cut Loose Stone, 6.0mm/0.791ct (Color Change Type) Sale price¥49,800

[Sakura In-Cut] Mongolian Color Change Andesine 6.0mm/0.655ct Loose Stone Sale price¥49,800

Madagascar sphene 6.0mm/0.868ct loose stone Sale price¥49,800

1.689ct loose teal blue sapphire Sale price¥98,000

Mozambique ruby 0.537ct loose stone Sale price¥15,800

Sri Lankan star sapphire 12.679ct loose Sale price¥158,000

Brazilian green tourmaline 3.102ct loose stone Sale price¥69,800

Sri Lankan star sapphire 5.066ct loose Sale price¥69,800

KARATZ Custom Made

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.

KARATZ・Five Commitments

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.