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Sold out 【12561989掲載】アメリカ産オレゴンサンストーン 0.793ctルース

Oregon Sunstone from the United States, 6.0mm/0.793ct loose stone
Sold out Imperial Topaz Gacha: Win a Pink Imperial Topaz, normally priced at 69,800 yen (Multiple purchase discounts available)

Imperial Topaz Gacha: Win a Pink Imperial Topaz, normally priced at 69,800 yen (Multiple purchase discounts available)

Sold out アルマンディンガーネット 3.214ctルース

[Rouge cut] Almandine garnet 3.214ct loose

Sold out ベトナム産非加熱シルキーピンクサファイア 0.175ctルース

Unheated silky pink sapphire from Vietnam 0.175ct loose
Sold out Bekily Blue Garnet from Madagascar (color change garnet) 0.163ct loose

Bekily Blue Garnet from Madagascar (color change garnet) 0.163ct loose
Sold out Colombian trapiche emerald (reverse trapiche) 3.0mm/0.107ct rough stone (faceted cut)

Colombian trapiche emerald (reverse trapiche) 3.0mm/0.107ct rough stone (faceted cut)
Sold out バイカラートルマリン 0.974ctルース

Bicolor tourmaline 0.974ct loose
Sold out Sri Lankan Ratotta Topaz 7.709ct Loose (White Topaz)

Sri Lankan Ratotta Topaz 7.709ct Loose (White Topaz)
Sold out 【12548254掲載】パパラチアサファイア 0.474ctルース

[12548254 published] Padparadscha sapphire 0.474ct loose
Sold out [12548259 published] Padparadscha sapphire 0.524ct loose

[12548259 published] Padparadscha sapphire 0.524ct loose
Sold out ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 3.089ctルース

Brazilian Tinkerbell Quartz (Pink Fire Quartz) 3.089ct loose
Sold out コッパールチルクォーツ 1.747ctルース

Copper rutilated quartz 1.747ct loose

Sold out ブラッドショットアイオライトサンストーン 1.250ctルース

Bloodshot Iolite Sunstone 1.250ct Loose
Sold out アフガニスタン産ハックマナイト 0.111ctルース

Afghanistan Hackmanite 0.111ct loose stone
Sold out グリーントルマリン 2.144ctルース

Green tourmaline 2.144ct loose
Sold out Indian alexandrite cat's eye 0.422ct loose

Indian alexandrite cat's eye 0.422ct loose
Sold out Indian alexandrite cat's eye 0.679ct loose

Indian alexandrite cat's eye 0.679ct loose
Sold out オーストラリア産レインボーラティスサンストーン 1.635ctルース

Australian Rainbow Lattice Sunstone 1.635ct Loose
Sold out オーストラリア産レインボーラティスサンストーン 1.013ctルース

Australian Rainbow Lattice Sunstone 1.013ct Loose
Sold out 奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 0.960ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 0.960ct loose
Sold out Montana Sapphire 0.449ct loose (bicolor sapphire)

Montana Sapphire 0.449ct loose (bicolor sapphire)
Sold out Montana sapphire 0.359ct loose (blue sapphire)

Montana sapphire 0.359ct loose (blue sapphire)
Sold out Blue Stone Gacha (normally 22,800 JPY for Brazilian Paraiba Tourmaline (CuO: 1.7%, MnO: 2.1%), Mozambique Paraiba Tourmaline, Zimbabwean Euclase, etc.)《Bulk Purchase Discount Available》

Blue Stone Gacha (normally 22,800 JPY for Brazilian Paraiba Tourmaline (CuO: 1.7%, MnO: 2.1%), Mozambique Paraiba Tourmaline, Zimbabwean Euclase, etc.)《Bulk Purchase Discount Available》
Sold out Limited to 10 stones! Pigeon Blood Ruby (normally priced at 39,800 yen) Red Gemstone Gacha with AIGS Certificate (Multiple purchase discounts available)

Limited to 10 stones! Pigeon Blood Ruby (normally priced at 39,800 yen) Red Gemstone Gacha with AIGS Certificate (Multiple purchase discounts available)

Sold out [Available at 10 PM on January 24th] Limited to 18 stones: Golden Hill Turquoise from Kazakhstan (December birthstone, average 1.3 carats) [Multiple purchase discounts available]

[Available at 10 PM on January 24th] Limited to 18 stones: Golden Hill Turquoise from Kazakhstan (December birthstone, average 1.3 carats) [Multiple purchase discounts available]

Sold out Limited to 8 stones - New in Tucson - Canadian Eudialite (Round Cut, Approx. 2mm) - Multiple purchase discounts available

Limited to 8 stones - New in Tucson - Canadian Eudialite (Round Cut, Approx. 2mm) - Multiple purchase discounts available
Sold out K18YG Russian Demantoid Garnet (horsetail inclusion) 4mm/0.382ct, Bekily Blue Garnet Ring

K18YG Russian Demantoid Garnet (horsetail inclusion) 4mm/0.382ct, Bekily Blue Garnet Ring
Sold out 0.085ct loose, non-oil red beryl from the United States, GIA

0.085ct loose, non-oil red beryl from the United States, GIA

Sold out バイカラーベニトアイト 0.282ctルース

[Authenticity Check] American Bicolor Benitoite 0.282ct Loose Stone

Sold out 【12558711掲載】ドゥニライト 0.132ctルース

Sri Lankan Dunilite 0.132ct Loose Stone with Certificate of Authenticity
Sold out ラズライト（天藍石） 0.085ctルース

Lazurite 0.085ct loose Japanese-German appraisal

Sold out ラズライト（天藍石） 0.051ctルース 日独鑑付

Lazurite 0.051ct loose Japanese-German appraisal

Sold out マンガノタンタライト 0.382ctルース

Mangano tantalite 0.382ct loose Japanese-German appraisal

Sold out マンガノタンタライト 0.092ctルース

Mangano tantalite 0.092ct loose Japanese-German appraisal

Sold out モンテブラサイト 0.749ctルース 日独鑑付

Montebrasite 0.749ct loose Japanese-German certified (mint color)

Sold out 【12525625掲載】トリプライト 0.140ctルース

Triplite 3.1mm/0.140ct loose Japanese-German appraisal

Sold out トリプライト 0.277ctルース

Triplite 0.277ct loose Japanese-German appraisal

Sold out ラズライト（天藍石） 0.125ctルース

Lazurite 0.125ct loose

Sold out トパーズ 1.770ctルース

Topaz 1.770ct loose Japanese-German appraisal

Sold out ルチル 0.230ctルース 日独鑑

Rutile 0.230ct loose Japanese-German book

Sold out 【12525649掲載】ルチル 0.285ctルース 日独鑑付

Rutile 0.285ct loose Japanese-German appraisal

Sold out セルサイト 0.150ctルース 日独鑑付（オレンジセルサイト）

Cell site 0.150ct loose Japanese-German appraisal (orange cell site)

Sold out セルサイト 0.413ctルース 日独鑑付

Cellsite 0.413ct loose Japanese-German appraisal

Sold out ボラサイト 0.120ctルース 日独鑑付

Boracite 0.120ct loose Japanese-German appraisal

Sold out ボラサイト 0.096ctルース 日独鑑付

Boracite 0.096ct loose Japanese-German appraisal

Sold out フォルステライト 0.368ctルース 日独鑑付

Forsterite 0.368ct loose Japanese-German book

Sold out ベリロナイト 0.302ctルース 日独鑑付

Berylonite 0.302ct loose Japanese-German appraisal

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.