0.1ct - 2.0ct

Mexican Fire Opal 0.593ct Loose (Faceted Cut) Sale price¥9,800

Nigerian bicolor tourmaline 0.379ct loose stone Sale price¥6,980

Tanzanian green sapphire 0.303ct loose stone Sale price¥8,800

Tanzania Purple Zoisite 0.863ct Rough Stone Sale price¥7,980

Pakistani Oil in Quartz 0.438ct Loose Stone Sale price¥6,980

Madagascar sapphire 0.448ct loose stone Sale price¥15,800

[Sale begins June 26th, 10 PM JST] Sri Lankan Silky Sapphire 5.1mm/0.488ct Loose Rose Cut Gemstone Sale price¥7,980

[Sale Date: June 26th, 10 PM JST] Brazilian Medusa Quartz (Paraiba Quartz) 5.4mm/0.479ct Loose Stone (Rose Cut) Sale price¥12,800

マダガスカル産アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.807ctルース

[On sale June 26th, 10 PM JST] Madagascar Andesine-Labradorite (Common name: Rainbow Moonstone) 0.807ct Loose Sale price¥8,800

マダガスカル産アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.619ctルース

[On sale June 21st at 10 PM] Madagascar Andesine-Labradorite (commonly known as Rainbow Moonstone) 0.619ct Loose Stone Sale price¥6,980

[On sale June 26th at 10 PM] Madagascar Canary Yellow Chrysoberyl 0.569ct Loose Gemstone with Certificate Sale price¥9,800

[Sale on June 21 at 10 PM] Jeremejevite from Namibia 0.139ct Loose Stone with Certification Sale price¥29,800

[On sale June 26, 10 PM JST] Russian rough diamond (sawable) 0.148ct (trigon) Sale price¥49,800

[On Sale June 24 at 10 PM] Zimbabwe Euclase 0.183 ct Loose Stone with Certificate Sale price¥35,800

[On Sale June 26th at 10 PM] Zimbabwean Euclase 3.4mm/0.206ct Loose Gemstone with Certification Sale price¥29,800

Diamond (cabochon cut) 0.206ct loose Sale price¥45,800

Australian Rainbow Lattice Sunstone 1.746ct Loose Stone Sale price¥12,800

Namibian Jeremejevite 0.501ct loose stone (bicolor) Sale price¥89,800

Sky blue topaz 1.719ct loose stone Sale price¥8,800

Brazilian Pink Tourmaline 0.862ct Loose Stone Sale price¥12,800

Vietnam Aquamarine 0.398ct Loose Sale price¥5,980

Vietnam Aquamarine 0.494ct Loose Stone Sale price¥8,800

Brazilian Blue Tourmaline 0.196ct Loose Sale price¥6,980

Brazilian Bicolor Tourmaline 7.2mm/1.326ct Loose Stone Sale price¥18,800

[Sale on June 19th at 10 PM] Mozambican Elbaite Tourmaline/Pink Tourmaline 1.126 ct Loose Stone (CuO: 0.2%, MnO: 2.4%) Sale price¥55,800

[On sale June 19, 10 PM] Colombian Trapiche Emerald 0.183ct Loose Stone Sale price¥39,800

【Sales start: June 15, 10 PM JST】Almandine Garnet from Tanzania 0.938ct Loose Stone Sale price¥12,800

[On sale June 13th at 10 PM] Pakistani Lapis Lazuli (Lazurite) 0.103ct Loose Stone with Certification Sale price¥19,800

[On sale June 12th at 10 PM] Synthetic Alexandrite 1.381ct Loose Stone Sale price¥25,800

[On sale 6/12 10 PM JST] Synthetic Alexandrite 1.076ct Loose Stone Sale price¥25,800

[Sale June 16th, 10 PM] Myanmar Red Spinel 0.453ct Loose Stone Sale price¥19,800

[Sale starts June 16th at 10 PM] Myanmar Red Spinel 3.3mm/0.172ct Loose Stone Sale price¥8,800

[Sales start 10 PM on June 16] Myanmar Red Spinel 3.5mm/0.214ct Loose Gemstone Sale price¥9,800

[On sale June 14th at 10 PM] Myanmar Red Spinel 3.4mm/0.194ct Loose Stone Sale price¥9,800

[Sale starts June 16th, 10 PM JST] Myanmar Red Spinel 0.234ct Loose Gemstone Sale price¥12,800

[On Sale June 16, 10 PM] Loose 0.249ct Myanmar Red Spinel Sale price¥12,800

[On sale June 14th, 10 PM JST] Madagascar Apatite Cat's Eye 1.734ct Loose Stone, Nissaihou Sale price¥9,800

[On Sale June 20th, 10 PM JST] Myanmar Leuco Garnet 0.128ct Loose Stone with Appraisal Report Sale price¥25,800

【Sales start at 10 PM on June 21】Myanmar Leuco Garnet 0.108ct Loose Gemstone with Certificate Sale price¥22,800

[Available 6/18 10 PM JST] Botswana rough diamond (sawable) 0.118ct (trigon) Sale price¥29,800

【Sales begin on 6/21 at 10 PM】Mexican Fire Opal 1.857ct Loose Gemstone Sale price¥25,800

[On sale July 24 at 10 PM] Mexican Fire Opal Loose Stone 0.729ct Sale price¥8,800

[On sale June 23rd, 10 PM JST] Colombian Trapiche Emerald 0.210ct Loose Stone Sale price¥39,800

[On Sale June 18th at 10 PM] Madagascar Bi-Color Sapphire 3.7mm/0.271ct Loose Gemstone Sale price¥6,980

[On sale June 14, 10 PM JST] Brazilian Canary Yellow Chrysoberyl 0.672 ct Loose Gemstone Sale price¥18,800

[On sale June 13th at 10 PM] Blue Sapphire 0.369ct Loose Stone (with Japan-Germany gemological report) Sale price¥22,800

【On sale June 14, 10 PM】Spanish Andalusite 0.416ct Loose Stone Sale price¥9,800

[Sales begin 10 PM on June 21] Sri Lankan Chrysoberyl Cat's Eye 0.798ct Loose Sale price¥12,800

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.