Coming soon

[12551312] Zimbabwean Blue Apatite (UV Type) 1.312ct Loose Stone Sale price¥8,800

[12550865] 0.203ct loose zoisite from Tanzania Sale price¥5,980

[12552038] Beryl Cat's Eye 32.703ct Loose Stone Sale price¥98,000

[12550851] 2.944ct Mozambique pink tourmaline loose stone Sale price¥39,800

Spanish Sphalerite 9.2mm/3.980ct loose stone Sale price¥49,800

Mini bottle keychain filled with natural stones (11 colors available, multiple purchase discount) Sale price¥2,800

[On sale June 6th, 10 PM JST] Nigerian Cobaltian Gahnite 0.122ct Loose Gemstone with Identification Report Sale price¥18,800

[On sale June 7th at 10 PM] Madagascar Padparadscha Sapphire 3.9mm/0.336ct Loose Stone DGL Certified Sale price¥45,800

[On sale June 7th at 10 PM] Madagascar Padparadscha Sapphire 3.9mm/0.282ct Loose Stone, DGL Certified Sale price¥43,800

[Sale on June 7 at 10 PM] Nigerian Cobaltian Garnet 0.154ct Loose Gemstone with Certificate Sale price¥24,800

【On sale June 7, 10 PM JST】Nigerian Cobalt Hauyne 0.157ct Loose with Certificate Sale price¥22,800

[On sale June 7th, 10 PM] Nigerian Cobalt-bearing Gahnite, 0.158ct loose stone with gemological report Sale price¥22,800

[On sale June 8th, 10 PM] Bi-Color Sapphire 1.040 ct Loose Gemstone GIT Sale price¥29,800

[On sale June 7th at 10 PM] India Odisha Alexandrite 0.759ct Loose Gemstone with Identification Report Sale price¥22,800

[Sale 10 PM JST, June 7] Alexandrite from Odisha, India 0.764 ct Loose Stone with Certificate Sale price¥29,800

[On sale June 8th, 10 PM] India, Orissa Origin Alexandrite 0.760ct Loose Stone with Certification Sale price¥19,800

[On Sale June 8th, 10 PM JST] India, Orissa Origin Alexandrite 0.715ct Loose Stone with Certification Sale price¥18,800

[On sale June 7th at 10 PM] Malawi Moonstone 1.792ct Loose Gemstone Sale price¥15,800

【Sales Start: June 8th, 10 PM JST】Kochi Prefecture-produced Red Coral, 1.975ct Loose Stone Sale price¥18,800

[Sales start 10:00 PM on June 8th] Kochi Prefecture Production Blood Red Coral Loose Stone 2.423ct Sale price¥22,800

[Sales start 10 PM on June 8th] High-Grade Red Coral from Kochi Prefecture, 2.187ct Loose Stone Sale price¥19,800

[On sale June 8th at 10 PM JST] Kochi Prefecture-produced oxblood coral, 1.879 ct loose stone Sale price¥18,800

[On Sale June 8th at 10 PM] Kochi Prefecture Blood Coral 16.659ct Branch (Raw Material) Sale price¥18,800

Sri Lankan Star Sapphire 2.093ct Loose Sale price¥8,800

Sri Lankan Star Sapphire 1.339ct Loose Sale price¥12,800

Sri Lankan Star Sapphire 1.682ct Loose Sale price¥12,800

Sri Lankan Star Sapphire 1.225ct Loose Sale price¥12,800

Lavender Tanzanite 0.784ct loose stone Sale price¥12,800

Mexican Opal 0.499ct Loose Sale price¥3,980

Bicolor Zoisite 1.100ct Loose Stone (Bicolor Tanzanite) Sale price¥18,800

Sky blue topaz 1.051ct loose stone Sale price¥8,800

American red beryl 0.143ct loose Sale price¥35,800

[Available June 12, 10 PM JST] [Colorfuri] Pt900 Thai Sapphire 1.33ct and Diamond 0.12ct Ring with GIA Report Sale price¥198,000

[COLORFUL] Pt900 Diamond 1.00ct Pendant (Necklace) Sale price¥49,800

[On sale June 12th at 10 PM] [Colorfuri] Pt900 Madagascar Sapphire 0.99ct / Diamond 0.58ct Ring GIA Sale price¥228,000

[Sale on 6/8 at 10 PM] Pt900 Benitoite 0.152ct / Diamond 0.58ct Ring Sale price¥188,000

Lepidocrocite in quartz 0.532ct loose Sale price¥6,980

Bicolor tourmaline 0.429ct loose Sale price¥5,980

Bicolor tourmaline 1.329ct loose Sale price¥9,800

Bicolor Tourmaline 0.378ct Loose Stone (Hexagonal Cut) Sale price¥8,800

Pink tourmaline 0.539ct loose stone (heart shape) Sale price¥9,800

Pink tourmaline 0.819ct loose Sale price¥9,800

Oregon Sunstone 0.462ct loose Sale price¥5,980

[On sale June 12th at 10 PM] Malawi Moonstone 2.144ct Loose Sale price¥15,800

[Sales start June 12th, 10 PM] Malawi Moonstone (Malawi Moonstone) 2.085ct Loose Gemstone Sale price¥16,800

[On sale June 12, 10 PM JST] Madagascar Padparadscha Sapphire 4.1mm/0.396ct Loose Stone DGL Certified Sale price¥52,800

[On sale June 13th, 10 PM JST] Malawi Moonstone 2.055ct Loose Stone Sale price¥16,800

[Sale on June 13th at 10 PM] Ruby 0.820ct Loose Stone - Hogikyo 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.