0.1ct - 2.0ct

[On sale May 24th at 10 PM] Andalusite from Spain, 0.478ct loose stone Sale price¥8,800

[On sale May 24th, 10 PM JST] Brazilian Color-Shift Amethyst 1.865ct Loose Gemstone Sale price¥9,800

[Sale on 5/17 at 10 PM] Cinnabar from Xinhua, Hunan Province, China, 1.056 ct Loose Stone with Gemological Report Sale price¥18,800

[Sale begins May 18th, 10 PM JST] Chinese Cinnabar (Hunan Province) 0.867ct Loose Stone with Certification Sale price¥13,800

[On sale May 15, 10 PM JST] Chinese Cinnabar from Hunan Province, 0.842ct Loose Stone with Certificate Sale price¥15,800

[On Sale May 17th at 10 PM] Sri Lankan Chrysoberyl Cat's Eye 4.3mm/0.582ct Loose Stone Sale price¥15,800

【On sale May 15 at 10 PM】Sri Lankan Chrysoberyl Cat's Eye 4.5mm/0.419ct Loose Stone Sale price¥15,800

[On sale May 17th at 10 PM] Indian Parrot Chrysoberyl 0.641ct Loose Stone Sale price¥14,800

[On sale May 23rd, 10 PM JST] Indian Parrot Chrysoberyl 0.518 ct Loose Stone Sale price¥29,800

[Sale at 10 PM on May 22] GGG (Gadolinium Gallium Garnet) 0.511 ct Loose Stone Sale price¥12,800

[On sale May 22nd at 10 PM] Synthetic Alexandrite 4.3mm/0.379ct Loose Stone Sale price¥9,800

[On Sale May 24, 10 PM JST] Synthetic Alexandrite Loose Stone 0.885ct Sale price¥18,800

[On sale May 24th, 10 PM JST] Synthetic Alexandrite 5.8mm/0.979ct Loose Stone Sale price¥22,800

[On sale 5/22 at 10 PM] Synthetic Alexandrite 1.320ct Loose Gemstone Sale price¥19,800

[On sale May 21st at 10 PM] Synthetic Alexandrite 1.241ct Loose Gemstone Sale price¥25,800

[On sale May 21st, 10 PM JST] Synthetic Alexandrite 0.228ct Loose Stone Sale price¥9,800

[On sale 5/21 at 10 PM] Synthetic Alexandrite 0.808ct Loose Stone Sale price¥18,800

【Sale starts May 17th, 10 PM JST】Synthetic Alexandrite 0.414ct Loose Stone Sale price¥12,800

[On Sale May 21st, 10 PM] Brazilian Lavender Quartz (Scorolite) 0.952ct Loose Stone Sale price¥9,800

[Sale on May 24th at 10 PM JST] Australian Black Opal 0.216ct Loose Sale price¥11,000

[On sale 5/22 at 10 PM] Australian Black Opal 0.325ct Loose Stone Sale price¥9,800

[On Sale May 22 at 10 PM JST] Australian Black Opal 1.393ct Loose Stone Sale price¥48,800

【Sales start 5/13 10 PM JST】Sri Lankan Bi-Color Sapphire, 0.434 ct Loose Stone Sale price¥12,800

[On sale May 12th, 10 PM JST] Mexican Fire Opal (Faceted) 1.046ct Loose Stone Sale price¥29,800

[On sale May 12th at 10 PM] Tanzanian Tanzanite 4.1mm/0.295ct Loose Gemstone Sale price¥9,800

[On sale May 12, 10 PM JST] Tanzanian Lavender Tanzanite 1.415ct Loose Stone Sale price¥45,800

[On sale May 10th at 10 PM] Tanzanian Tanzanite 0.406ct Loose Stone Sale price¥12,800

奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 0.656ctルース

【Sale from 10 PM on May 23】Nara Prefecture Tenkawa Village Rainbow Garnet (Andradite Garnet) 4.8mm/0.656ct Loose Stone Sale price¥11,000

[For sale May 18, 10 PM JST] Spanish Cobalt Calcite 0.289ct Loose Stone with Certificate Sale price¥29,800

[Sale at 10 PM on May 18th] Spanish Cobalt Calcite 0.253ct Loose Stone with Certificate Sale price¥25,800

[On sale 9 May, 10 PM] Brazilian Green Spodumene, 1.460 ct loose gemstone Sale price¥12,800

【Available 5/9 at 10 PM JST】Brazilian Sky Blue Topaz 0.756ct Loose Gemstone Sale price¥8,800

[On Sale May 9th at 10 PM] Madagascar Apatite 6.5mm/1.285ct Loose Stone (Rose Cut) Sale price¥8,800

[On sale May 9th, 10 PM JST] Turkish Color Change Diaspore 1.085ct Loose Gemstone Sale price¥18,800

[On Sale May 9th, 10 PM] Sri Lankan Yellow Sapphire 0.517ct Loose Gemstone Sale price¥12,800

[Sale on 5/23 at 10 PM JST] Brazilian Paraiba Tourmaline 0.170ct Loose Stone (CuO: 2.1%, MnO: 1.1%) Sale price¥258,000

[On sale May 9 at 10 PM JST] Brazilian Sky Blue Topaz 0.802ct Loose Stone Sale price¥9,800

[On sale 5/4 at 10 PM] Colombian bicolor emerald 0.274ct loose stone Sale price¥98,000

[Sale at 10 PM on May 4] Moroccan Cerussite 1.026ct Loose Stone with Japan-Germany Gemological Report Sale price¥69,800

[On sale May 4th, 10 PM JST] Bicolor Benitoite from USA, 0.624 ct loose stone with鑑別書 Sale price¥98,000

[Sale on May 4, 10 PM] Bolivian Phosphophyllite 1.806ct Loose Stone with Certificate Sale price¥98,000

[On Sale May 2 at 10 PM] Ruby 0.286ct Loose Gemstone with Identification Report Sale price¥22,800

Colombian mint color emerald 0.136ct loose stone Sale price¥6,980

Colombian mint color emerald 0.155ct loose stone Sale price¥7,980

Colombian Trapiche Emerald 0.422ct Loose Sale price¥18,800

Bicolor Zoisite 0.823ct rough stone Sale price¥6,980

Bicolor Tanzanite 1.677ct rough stone Sale price¥7,980

Colombian emerald 0.153ct rough stone Sale price¥6,980

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.