Coming soon

[12/14 22:00] Colombian Emerald 3.0mm/0.098ct Loose Stone Sale price¥12,800

[12/10 22:00] Mali Garnet (Grossular/Andradite Garnet) 1.008ct Loose Stone from the Republic of Mali with Certificate of Authenticity Sale price¥35,800

[12/14 22:00] Brazilian Pink Tourmaline 5.0mm/0.484ct Loose Stone (Rose Cut) Sale price¥8,800

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

[12/10 22:00 Sale] Pakistani Ludwigite Peridot 0.609ct Loose Stone Sale price¥6,980

[12/14 22:00] Colombian Emerald Rough 11.155ct (with Pyrite) Sale price¥22,800

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

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

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

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

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

[On Sale at 10 PM on December 7th] Madagascar Andesine Labradorite Moonstone (also known as Rainbow Moonstone) 0.178ct Loose Stone Sale price¥9,800

[12/14 22:00 Sale] Tanzanian Chrome Tourmaline 0.164ct Loose Stone Sale price¥9,800

[12/14 22:00] Brazilian Yellow Beryl 0.913ct Loose Stone Sale price¥8,800

[12/14 22:00 Sale] Blue beryl (Mashish beryl) 3.268ct loose stone Sale price¥25,800

[12/14 22:00 Sale] Sinhalite from Sri Lanka 0.456ct Loose Stone Sale price¥9,800

[12/14 22:00 Sale] Madagascar Iolite 0.644ct Loose Stone Sale price¥7,980

[12/14 22:00 Sale] Mexican Water Opal (Faceted) 0.402ct Loose (Contrarus Opal) Sale price¥12,800

[12/14 22:00] American Peridot 5.1mm/0.573ct Loose Stone Sale price¥9,800

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

[On Sale at 10 PM on December 7th] Rainbow Garnet (Andradite Garnet) 2.365ct Loose Stone from Tenkawa Village, Nara Prefecture Sale price¥12,800

[12/14 22:00 Sale] Sinhalite from Sri Lanka 0.434ct Loose Stone Sale price¥8,800

[12/14 22:00] Indian Moonstone 5.1mm/0.426ct Loose Stone (Rose Cut) Sale price¥6,980

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

Bicolor Zoisite 0.581ct loose Sale price¥12,800

Chrome tourmaline 0.300ct loose stone Sale price¥2,980

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

Yellow diamond rough stone (makeable) 0.247ct rough stone Sale price¥22,800

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

[12/16 22:00] Brazilian Rose Quartz 1.848ct Loose Stone Sale price¥9,800

[12/16 22:00] Brazilian Rose Quartz 4.019ct Loose Stone Sale price¥11,000

[12/16 22:00] Brazilian Dumortierite in Quartz 10.0mm/5.357ct Loose Stone Sale price¥39,800

[12/16 22:00 Sale] Green Sapphire 0.607ct Loose Sale price¥12,800

[12/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.170ct Loose Sale price¥12,800

[12/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.182ct Loose Sale price¥9,800

[12/17 22:00] Brazilian Dumortierite in Quartz 2.012ct Loose Stone Sale price¥14,800

[12/17 22:00 Sale] Russian Demantoid Garnet (Horsetail Certified) 4.2mm/0.325ct Loose Stone Sale price¥59,800

Unheated silky pink sapphire from Vietnam 0.247ct loose Sale price¥8,800

Unheated silky pink sapphire from Vietnam 0.197ct loose Sale price¥8,800

Star garnet 14.600ct loose Sale price¥11,000

Brazilian Medusa Quartz (Paraiba Quartz) 10.298ct loose Sale price¥7,980

Brazilian Medusa Quartz (Paraiba Quartz) 5.809ct loose Sale price¥6,980

Brazilian Medusa Quartz (Paraiba Quartz) 3.441ct loose Sale price¥3,980

Brazilian Medusa Quartz (Paraiba Quartz) 2.757ct loose Sale price¥3,980

American benitoite 0.101ct loose Sale price¥25,800

American benitoite 0.127ct loose Sale price¥28,800

American benitoite 0.133ct loose Sale price¥29,800

American benitoite 0.102ct loose Sale price¥22,800

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.