Vertical: Above 10.0mm

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

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

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

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

[12/6 22:00 Sale] Blue Coral (75.469ct) Loose Stone Sale price¥12,800

[12/22 22:00] Red Coral (Coral) 6.833ct Loose Stone Sale price¥39,800

[12/22 22:00] Sri Lankan Star Sapphire 12.679ct Loose Sale price¥158,000

[12/23 22:00] Sri Lankan Star Sapphire 5.066ct Loose Sale price¥69,800

[12/23 22:00] Australian Black Opal 2.736ct Loose Sale price¥98,000

[12/23 22:00] Sri Lankan Star Sapphire 3.821ct Loose Sale price¥79,800

[12/23 22:00] Australian White Opal 4.170ct Loose Sale price¥69,800

[12/21 22:00] Mexican Cantera Opal 9.166ct Loose Sale price¥69,800

[12/21 22:00] Brazilian Bicolor Tourmaline 7.268ct Loose Stone Sale price¥158,000

[12/21 22:00] Zambian Bicolor Tourmaline 6.536ct Loose Stone Sale price¥128,000

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

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

[12/20 22:00 Sale] Colombian Emerald Rough Stone 13.577ct Sale price¥18,800

[12/20 22:00 Sale] Colombian Emerald 8.169ct Rough Stone Sale price¥9,800

[12/20 22:00 Sale] Colombian Emerald 7.924ct Rough Stone Sale price¥9,800

[12/20 22:00 Sale] Colombian Emerald Rough Stone 6.933ct Sale price¥9,800

[12/20 22:00 Sale] Colombian Emerald Rough Stone 5.895ct Sale price¥9,800

Australian white opal 2.092ct loose stone Sale price¥9,800

Synthetic Moissanite 8.417ct Loose Stone Sale price¥49,800

[On Sale 11/23 10pm] 4.678ct Oregon Sunstone Loose Stone from the USA Sale price¥69,800

[On Sale 11/26 10pm] Brazilian Bicolor Tourmaline 4.497ct Loose Stone Sale price¥69,800

[On Sale at 10 PM on November 20th] Brazilian Yellow Beryl 9.747ct Loose Stone Sale price¥98,000

[11/18 22:00 Sale] Australian Prehnite 1.691ct Loose Stone Sale price¥9,800

[11/16 22:00 Sale] Brazilian Andalusite 7.656ct Loose Stone Sale price¥158,000

[11/14 22:00 Sale] Afghanistan Kunzite 3.973ct Loose Stone Sale price¥12,800

[12/15 22:00] Tanzanian Almandine Garnet 11.0mm/6.787ct Loose Stone Sale price¥49,800

[11/27 22:00] Tibetan Andesine 2.769ct Loose Stone (Pixel Cut) Sale price¥9,800

[11/27 22:00 Sale] Brazilian Swiss Blue Topaz 13.287ct Loose Sale price¥18,800

[On sale 11/3 at 10pm] Illusion Bicolor Tourmaline 3.202ct Loose Stone Sale price¥69,800

[11/2 22:00 Sale] Australian Boulder Opal 3.122ct Loose Sale price¥29,800

[11/2 22:00] Mexican Hyalite Opal 1.420ct Loose Sale price¥18,800

[11/2 22:00] Brazilian Pink Tourmaline 2.765ct Loose Stone Sale price¥69,800

[On Sale 11/6 at 10pm] Colombian Bicolor Fluorite 3.209ct Loose Stone Sale price¥18,800

[11/7 22:00] Australian Prehnite 3.751ct Loose Stone Sale price¥9,800

[11/1 22:00 Sale] Brazilian Pink Tourmaline 1.515ct Loose Stone Sale price¥98,000

[11/1 22:00 Sale] Brazilian Elestial Amethyst 1.586ct Loose Stone Sale price¥8,800

Kunzite from Afghanistan 4.331ct loose stone Sale price¥8,800

Brazilian Amethyst 5.883ct Loose Stone Sale price¥9,800

Brazilian Rutile Quartz (Rutile-Rated Quartz) 12mm/5.333ct Loose Stone Sale price¥9,800

Brazilian bicolor tourmaline 1.965ct loose stone Sale price¥18,800

Brazilian Aquamarine 8.858ct Loose Stone Sale price¥198,000

Mexican Cantera Opal 14.690ct Loose Sale price¥12,800

[Cat Cut] Brazilian Dendritic Quartz 6.775ct Loose Sale price¥15,800

Brazilian Rubellite 4.078ct Loose Stone Sale price¥98,000

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.