Oval Cut

【10/5 22時販売】アメリカ産ベニトアイト 0.262ctルース Sale price¥128,000

[On Sale at 10 PM on September 22nd] Unheated Brazilian Paraiba Tourmaline 0.039ct Loose Stone (CuO: 2.0%, MnO: 2.3%) Sale price¥59,800

[12559781] Hackmanite 0.091ct loose stone Sale price¥18,800

【12559437掲載】タンザニア産バイカラーグロッシュラーガーネット 1.359ctルース

[12559437] Tanzanian Bicolor Grossular Garnet 1.359ct Loose Sale price¥49,800

[12559463] Pyrope Almandine Garnet from Mozambique, 1.455ct Loose Sale price¥15,800

[12559368] Zimbabwean sphene 0.756ct loose stone Sale price¥18,800

[12559054] Mozambique rubellite 1.406ct loose stone Sale price¥69,800

[On sale at 10pm on September 20th] German Auchenite 0.097ct Loose Stone Sale price¥39,800

[Sold at 10pm on September 15th] Blue sapphire 0.591ct loose stone Sale price¥9,800

[Sold at 10 PM on September 13th] Brazilian Indigolite Tourmaline 0.715ct Loose Stone with Certificate of Authenticity Sale price¥45,800

[On Sale at 10 PM on September 13th] Tanzanian Dragon Garnet 0.754ct Loose Stone Sale price¥19,800

[Sold at 10 PM on September 7th] Tanzanian Magnesioaxinite 0.357ct Loose Stone, Japan-Germany Qualification Sale price¥39,800

[On Sale at 10 PM on September 5th] Brazilian Elestial Amethyst 3.093ct Loose Stone Sale price¥19,800

[On Sale at 10 PM on September 6th] 0.610ct Loose Blue Apatite from Madagascar Sale price¥9,800

[On Sale at 10 PM on August 29th] 0.169ct Loose Pink Sapphire from Mozambique Sale price¥6,980

[On Sale at 10 PM on September 6th] 0.170ct Loose Blue Sapphire from Madagascar Sale price¥8,800

[On Sale at 10 PM on September 6th] 0.162ct Loose Blue Sapphire from Madagascar Sale price¥9,800

[On sale at 10pm on September 6th] Brazilian Alexandrite 0.326ct Loose Stone Sale price¥79,800

1.483ct blue sapphire loose stone Sale price¥98,000

[12560245] Green Zoisite 0.224ct Loose Stone Sale price¥8,800

[On Sale at 10 PM on August 17th] Tanzanian Golden Zircon 3.548ct Loose Stone Sale price¥39,800

[On Sale at 10 PM on August 16th] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.764ct Loose Stone Sale price¥12,800

[On Sale at 10 PM on August 20th] Mexican Fire Opal (Faceted) 0.515ct Loose Sale price¥12,800

[On Sale at 10 PM on September 9th] Mexican Fire Opal (Faceted) 0.198ct Loose Sale price¥8,800

[On Sale at 10 PM on September 9th] Mexican Fire Opal (Faceted) 0.417ct 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） 0.295ctルース

[Available at 10 PM on August 22nd] Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.295ct Loose Stone Sale price¥8,800

[On sale at 10pm on August 14th] Alexandrite 0.272ct loose stone Sale price¥59,800

[8/10 22:00 Sale] Brazilian Lepidocrocite in Quartz 0.953ct Loose Stone Sale price¥7,980

[On sale at 10pm on August 13th] Zimbabwean sphene 0.441ct loose stone Sale price¥8,800

[On Sale at 10 PM on August 5th] Afghanistan Hackmanite 0.761ct Loose Stone (Bicolor) Sale price¥39,800

[8/11 22:00 Sale] Tanzanian Rhodolite Garnet 0.734ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on August 7th] Tanzanian Kornerupine 0.219ct Loose Stone Sale price¥29,800

[8/11 22:00 Sale] Tanzanian Kornerupine 0.084ct Loose Stone Sale price¥22,800

[Available at 10 PM on August 16th] Cambodian Blue Zircon (Ratanakiri Blue) 2.607ct Loose Stone Sale price¥59,800

[Available at 10 PM on August 15th] Cambodian Blue Zircon (Ratanakiri Blue) 0.529ct Loose Stone Sale price¥18,800

[Available at 10 PM on August 15th] Cambodian Blue Zircon (Ratanakiri Blue) 0.484ct Loose Stone Sale price¥12,800

Sri Lankan saffron 0.320ct loose stone with certificate of authenticity Sale price¥29,800

Tanzanian Dragon Garnet 0.746ct Loose Stone Sale price¥17,800

[On Sale at 10 PM on August 17th] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.338ct Loose Stone Sale price¥8,800

American Benitoite 0.158ct loose stone Sale price¥59,800

American Benitoite 0.296ct loose stone Sale price¥148,000

[Available at 10 PM on August 17th] Zimbabwean Euclase 0.129ct Loose Stone with Certificate of Authenticity Sale price¥29,800

Namibian Yellow Grossular Garnet 0.215ct Loose Stone with Certificate of Authenticity Sale price¥18,800

Sri Lankan bicolor sapphire 1.396ct loose stone Sale price¥39,800

Brazilian bicolor tourmaline 13.927ct loose stone Sale price¥198,000

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.134ctルース

Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.134ct Loose Stone Sale price¥6,980

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.152ctルース

Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.152ct Loose Stone Sale price¥8,800

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.104ctルース

Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.104ct Loose Stone Sale price¥7,980

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.