Oval Cut

[On Sale 2/1 at 10pm] Brazilian Alexandrite 0.193ct Loose Stone Sale price¥98,000

[On Sale 2/1 at 10pm] Sri Lankan Moonstone 1.578ct Loose Sale price¥12,800

[On Sale 2/1 at 10pm] Mexican Fire Opal 0.281ct Loose Sale price¥15,800

[12561844] Colombian cat's eye emerald 0.417ct loose Sale price¥39,800

[On Sale 2/4 at 10pm] Mexican Fire Opal 0.362ct Loose Sale price¥15,800

[On Sale 2/4 at 10pm] Mozambique Pink Spinel 0.227ct Loose Sale price¥12,800

[On Sale 2/3 at 10pm] Colombian Emerald 0.159ct Loose Sale price¥47,800

Tanzanite from Tanzania 0.889ct loose stone Sale price¥18,800

[On Sale at 10 PM on January 26th] 1.519ct Loose Oregon Sunstone from the United States Sale price¥15,800

[On Sale at 10 PM on January 24th] Mali Garnet (Grossular/Andradite Garnet) 0.353ct Loose Stone from the Republic of Mali Sale price¥8,800

[On Sale at 10 PM on January 24th] Tanzanian Green Zoisite 0.354ct Loose Stone Sale price¥12,800

[On Sale at 10 PM on January 24th] Tanzanian Green Zoisite 0.262ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on January 24th] Cambodian Blue Zircon (Ratanakiri Blue) 0.537ct Loose Stone Sale price¥18,800

[On Sale at 10 PM on January 27th] 0.291ct Unheated Silky Pink Sapphire from Vietnam Sale price¥12,800

[On Sale at 10 PM on January 23rd] Unheated Silky Pink Sapphire from Vietnam, 0.168ct Loose Sale price¥9,800

[On Sale at 10 PM on January 27th] Mexican Fire Opal 0.235ct Loose (Faceted) Sale price¥12,800

[On Sale at 10 PM on January 27th] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.132ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on January 25th] Brazilian Imperial Topaz 0.939ct Loose Stone with Certificate of Authenticity Sale price¥29,800

[On Sale at 10 PM on January 25th] Brazilian Imperial Topaz 0.901ct Loose Stone with Certificate of Authenticity Sale price¥29,800

[On Sale at 10 PM on January 21st] American Benitoite 0.157ct Loose Stone Sale price¥98,000

[On Sale at 10 PM on January 28th] Madagascar Grandidierite 0.228ct Loose Stone Sale price¥22,800

[On Sale at 10 PM on January 20th] 0.257ct Unheated Silky Pink Sapphire from Vietnam Sale price¥12,800

[On Sale at 10 PM on January 20th] Sri Lankan Bicolor Sapphire 0.607ct Loose Sale price¥15,800

[On Sale at 10 PM on January 21st] Brazilian Green Tourmaline 1.233ct Loose Stone Sale price¥69,800

[On Sale at 10 PM on January 21st] Brazilian Aquamarine 6.294ct Loose Stone Sale price¥188,000

[On Sale at 10 PM on January 17th] Cornflower Blue Sapphire 0.680ct Loose Stone AIGS Sale price¥128,000

[On Sale at 10 PM on January 14th] American Benitoite 0.257ct Loose Stone Sale price¥158,000

[1/11 22:00 Sale] Brazilian Blue Tourmaline 0.827ct Loose Stone Sale price¥19,800

[On Sale at 10 PM on January 8th] Tanzanian Dragon Garnet 1.181ct Loose Stone Sale price¥29,800

[On Sale at 10 PM on January 6th] Sri Lankan Blue Spinel 1.218ct Loose Stone with Certificate of Authenticity Sale price¥45,800

[1/5 22:00 Sale] Parasitic Peridot 0.241ct Loose Stone, Japan-Germany Qualification Sale price¥98,000

Pigeon Blood Ruby 0.170ct Loose Stone AIGS Sale price¥39,800

[On Sale at 10 PM on January 9th] Brazilian Paraiba Tourmaline 0.115ct Loose Stone (CuO: 2.0%, MnO: 0.6%) Sale price¥59,800

[On Sale at 10 PM on January 1st] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.183ct Loose Stone Sale price¥18,800

[1/1 10pm Sale] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.189ct Loose Stone Sale price¥18,800

[On Sale at 10 PM on January 1st] Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.221ct Loose Stone Sale price¥22,800

[On sale at 10pm on January 9th] German Auchenite 0.083ct Loose Stone Sale price¥35,800

Madagascar Iolite 0.644ct Loose Stone Sale price¥7,980

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

[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

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

[On Sale at 10 PM on January 10th] Kenyan Tsavorite 0.806ct Loose Stone Sale price¥39,800

Zambian bicolor tourmaline 6.536ct loose stone Sale price¥128,000

[1/4 22:00 Sale] Brazilian Tourmaline 0.270ct Loose Stone Sale price¥5,980

[1/2 22:00 Sale] Mexican Opal (Faceted) 0.261ct Loose (Contrarus Opal) Sale price¥12,800

Spinel 0.310ct loose Sale price¥6,980

Mali Garnet (Grossular/Andradite Garnet) 0.872ct Loose Stone from the Republic of Mali with Certificate of Authenticity Sale price¥29,800

Myanmar Leuco Garnet 0.542ct Loose Stone with Certificate of Authenticity Sale price¥39,800

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.