1.0ct - 2.0ct

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

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

[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

Sold out

【12563291掲載】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） 1.904ctルース

【Sales start June 16, 10 PM JST】Madagascar Andesine-Labradorite (Common Name: Rainbow Moonstone) 1.904 ct Loose Stone

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

[On sale June 14th at 10 PM] Australian Black Opal 1.080ct Loose Stone Sale price¥39,800

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

Spessartite Garnet from Madagascar 1.053ct loose stone Sale price¥29,800

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

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

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

Bicolor tourmaline 1.329ct loose Sale price¥9,800

[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] Colombian Trapiche Emerald, 1.874ct Loose Stone, with Identification Report Sale price¥69,800

[On sale June 6th, 10 PM JST] Cambodian Blue Zircon (Ratanakiri Blue) 1.455ct Loose Stone with Gemological Report Sale price¥22,800

[Sales start June 5th, 10 PM] Russian Demantoid Garnet (horsetail inclusion visible) 6.8mm/1.366ct Loose Stone with Appraisal Report Sale price¥398,000

[On sale June 5th at 10 PM] Russian Demantoid Garnet (Horsetail inclusion confirmed) 6.9mm/1.589ct Loose Stone with Appraisal Report Sale price¥458,000

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

[Sale at 10 PM on June 6] Malawi Moonstone 1.661ct Loose Stone Sale price¥12,800

[On sale May 31st at 10 PM] Malawi Blue Zircon (Malawi Zircon) 1.833ct Loose Sale price¥98,000

[On Sale May 30th at 10 PM] Malawi Moonstone 1.475ct Loose Gemstone Sale price¥9,800

[Sale on May 30th at 10 PM] Synthetic Rutile 6.2mm/1.594ct Loose Stone Sale price¥15,800

Mexican Hyalite Opal 1.215ct Loose (Faceted Cut) Sale price¥8,800

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） 1.101ctルース

[On sale May 30th, 10 PM JST] Madagascar Andesine-Labradorite (commonly known as Rainbow Moonstone) 6.0mm/1.101ct loose stone Sale price¥16,800

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

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

Almandine Garnet 1.049ct Loose Stone Sale price¥9,800

Mexican Opal 9.6mm/1.803ct Loose (Contralus Opal) Sale price¥49,800

Sillimanite from Sri Lanka 1.704ct loose stone Sale price¥18,800

Pink tourmaline 1.157ct loose stone Sale price¥12,800

Mexican Opal 1.666ct Loose Sale price¥14,800

Brazilian Indigolite Tourmaline 1.247ct Loose Stone, Japan-Germany Exchange Sale price¥98,000

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

Non-Oil Emerald 1.370ct Loose GIA Sale price¥1,580,000

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

[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

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

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

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

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

[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

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.