0.1ct - 2.0ct

Tanzanian Kornerupine 0.300ct Loose Stone Sale price¥18,800

Tanzanian Kornerupine 0.210ct loose stone Sale price¥11,000

Tanzanian Kornerupine 0.220ct loose stone Sale price¥6,980

Tanzanian Kornerupine 0.229ct loose stone Sale price¥9,800

Tanzanian Kornerupine 0.249ct loose stone Sale price¥15,800

Tanzanian Kornerupine 0.201ct loose stone Sale price¥14,800

Tanzanian Kornerupine 0.200ct Loose Stone Sale price¥9,800

[For sale on May 16th at 10 PM] Brazilian Emerald Cat's Eye 0.559ct Loose Stone with Appraisal Report Sale price¥9,800

[On Sale May 16th, 10 PM JST] Brazilian Emerald Cat's Eye 0.459 ct Loose Gemstone with Certificate Sale price¥9,800

[On Sale May 16th, 10 PM JST] Brazilian Emerald Cat's Eye 1.022ct Loose Stone with Certification Sale price¥12,800

[On sale June 7th at 10 PM] Nepal Green Kyanite 0.764ct Loose Stone Sale price¥6,980

Tanzanian Chrome Tourmaline 0.522ct Loose Stone Sale price¥3,980

Brazilian Dumortierite in Quartz 0.432ct Loose Stone Sale price¥6,980

Purple Spinel 4.3mm/0.323ct Loose Stone Sale price¥6,980

Violet spinel 0.301ct loose Sale price¥6,980

Pink tourmaline 6.1mm/1.031ct loose stone Sale price¥12,800

Pink tourmaline 0.466ct loose Sale price¥8,800

Tanzania Zoisite 0.278ct loose stone Sale price¥7,980

Zoisite 0.216ct loose stone (heart shape) Sale price¥7,980

Zoisite 0.162ct loose stone (heart shape) Sale price¥7,980

Zoisite 0.247ct loose stone (heart shape) Sale price¥7,980

[On Sale June 3rd, 10 PM JST] Andalusite from Spain, 0.425 ct Loose Stone Sale price¥9,800

[On sale at 10 PM on June 7] Andalusite from Spain, 0.930ct loose gemstone Sale price¥12,800

[On sale June 7th at 10 PM] Spanish Andalusite 0.571ct Loose Gemstone Sale price¥7,980

[On sale June 7th at 10 PM] Andalusite from Spain, 0.536ct loose stone Sale price¥9,800

[On sale May 24th at 10 PM] Andalusite from Spain 0.598ct Loose Gemstone Sale price¥9,800

[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

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

[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

【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 10th at 10 PM] Tanzanian Tanzanite 0.406ct Loose Stone Sale price¥12,800

[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

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.