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ブラジル産マイカインローズクォーツ（雲母インローズクォーツ） 7.882ctルース

Brazilian Mica in Rose Quartz (雲母 in Rose Quartz) 7.882ct Loose Sale price¥9,800
【12562772掲載】ブラジル産マイカインローズクォーツ（雲母インローズクォーツ） 7.044ctルース

Brazilian Mica-in-Rose Quartz (Mica-included Rose Quartz) 7.044ct Loose Gemstone Sale price¥8,800
Brazilian Mica in Rose Quartz Loose Stone 3.245ct

Brazilian Mica in Rose Quartz Loose Stone 3.245ct Sale price¥5,980
Brazilian Mica in Rose Quartz 8.773ct Loose Stone

Brazilian Mica in Rose Quartz 8.773ct Loose Stone Sale price¥9,800
94ctルース

Mica in Quartz 0.594ct loose stone Sale price¥5,980
オレゴンサンストーン 0.272ctルース

Oregon Sunstone 0.272ct Loose Sale price¥6,980
オレゴンサンストーン 0.575ctルース

Oregon Sunstone 0.575ct loose Sale price¥9,800
ラベンダークォーツ（スコロライト） 1.130ctルース

Lavender quartz (scorolite) 1.130ct loose stone Sale price¥5,980
ラベンダークォーツ（スコロライト） 2.181ctルース

Lavender quartz (scorolite) 2.181ct loose stone Sale price¥8,800
ラベンダークォーツ（スコロライト） 2.740ctルース

Lavender quartz (scorolite) 2.740ct loose stone Sale price¥8,800
アンダリュサイト 0.672ctルース

Andalusite 0.672ct loose Sale price¥8,800
アンダリュサイト 0.435ctルース

Spanish Andalusite 0.435ct loose stone Sale price¥6,980
ダイヤモンド 0.042ctルース

Diamond 0.042ct loose (VS class equivalent, emerald cut) Sale price¥6,980
クリストバライトインクォーツ 2.417ctルース

Cristobalite in Quartz 2.417ct Loose Stone Sale price¥8,800
オパール 2.131ctルース

Ethiopian Opal 2.131ct Loose Sale price¥9,800
ブラジル産インペリアルトパーズ 0.402ctルース

Brazilian Imperial Topaz 0.402ct Loose Stone Sale price¥9,800
レピドクロサイトインクォーツ 0.308ctルース

Lepidocrocite in quartz 0.308ct loose Sale price¥6,980
Lepidocrocite in quartz 1.087ct loose

Lepidocrocite in quartz 1.087ct loose Sale price¥5,980
ヴァイオレットスピネル 0.642ctルース

Violet spinel 0.642ct loose Sale price¥6,980
ヴァイオレットスピネル 0.472ctルース

Violet spinel 0.472ct loose Sale price¥8,800
イエロートルマリン 0.277ctルース

Yellow tourmaline 0.277ct loose Sale price¥6,980
グリーントルマリン 0.559ctルース

Green tourmaline 0.559ct loose Sale price¥6,980
ピンクトルマリン 0.632ctルース

Pink tourmaline 0.632ct loose Sale price¥9,800
Mexican Hyalite Opal 0.774ct Loose (Faceted Cut)

Mexican Hyalite Opal 0.774ct Loose (Faceted Cut) Sale price¥8,800
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） 1.533ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 1.533ct loose Sale price¥6,980
《Limited Edition》Chilean Seruleite (Japanese name: Pseudoturquoise) 4x5mm Cabochon Single Stone Loose《Bulk Purchase Discount Available》

《Limited Edition》Chilean Seruleite (Japanese name: Pseudoturquoise) 4x5mm Cabochon Single Stone Loose《Bulk Purchase Discount Available》 Sale price¥3,980
Limited to 10 stones: Cambodian Pink Zircon Loose Stone (Avg. 0.50ct) - Multiple Purchase Discount Available

Limited to 10 stones: Cambodian Pink Zircon Loose Stone (Avg. 0.50ct) - Multiple Purchase Discount Available Sale price¥3,980
《Limited to 5 stones》Fluorescent brown diamond single loose stone (pear shape, SI clarity equivalent, 0.2ct UP) 《Bulk purchase discount available》

《Limited to 5 stones》Fluorescent brown diamond single loose stone (pear shape, SI clarity equivalent, 0.2ct UP) 《Bulk purchase discount available》 Sale price¥4,980
Tanzanian Yellow Scapolite 1.780ct Loose

Tanzanian Yellow Scapolite 1.780ct Loose Sale price¥8,800
《Limited to 10 stones》Mozambique Grape Garnet loose stone (6×4mm, pear cut) 《Bulk purchase discount available》

《Limited to 10 stones》Mozambique Grape Garnet loose stone (6×4mm, pear cut) 《Bulk purchase discount available》 Sale price¥3,980
タンザニア産スペサルティンガーネット 0.359ctルース

Tanzanian Spessartine Garnet 0.359ct Loose Stone Sale price¥9,800
Afghanite 0.447ct loose stone from Afghanistan, Japan-Germany

Afghanite 0.447ct loose stone from Afghanistan, Japan-Germany Sale price¥5,980
《Limited to 13 stones, Tucson Arrivals》Kenya Bi-Color Grossular Garnet, usually ¥29,800, average 0.63ct. Tucson Arrivals 《Multiple Purchase Discount Available》

《Limited to 13 stones, Tucson Arrivals》Kenya Bi-Color Grossular Garnet, usually ¥29,800, average 0.63ct. Tucson Arrivals 《Multiple Purchase Discount Available》 Sale price¥9,800
Ceylon Blue Sapphire (Ice Blue) 0.289ct Loose

Ceylon Blue Sapphire (Ice Blue) 0.289ct Loose Sale price¥9,800
《Tucson New Arrival - Limited to 8 Stones》Zambian Canary Yellow Tourmaline Average 0.47ct《Bulk Purchase Discount Available》

《Tucson New Arrival - Limited to 8 Stones》Zambian Canary Yellow Tourmaline Average 0.47ct《Bulk Purchase Discount Available》 Sale price¥7,980
《New Arrivals from Tucson・Limited to 9 Stones》Canary Yellow Tourmaline from Zambia, average 0.18ct《Multi-purchase discount available》

《New Arrivals from Tucson・Limited to 9 Stones》Canary Yellow Tourmaline from Zambia, average 0.18ct《Multi-purchase discount available》 Sale price¥3,980
Sri Lankan Unheated Star Sapphire 0.238ct Loose

Sri Lankan Unheated Star Sapphire 0.238ct Loose Sale price¥3,980
0.354ct Unheated Star Sapphire Loose Stone from Sri Lanka

0.354ct Unheated Star Sapphire Loose Stone from Sri Lanka Sale price¥6,980
ブルーサファイア 0.485ctルース

Loose 0.485 ct Sri Lankan Blue Sapphire Sale price¥9,800
【12558413掲載】モルガナイト 0.460ctルース

Brazilian Morganite 0.460ct Loose Sale price¥6,980
【12557631掲載】アベンチュリンアクアマリン 0.239ctルース

Brazilian Aventurine Aquamarine 4.2mm/0.239ct Loose Stone Sale price¥8,800
【12556697掲載】ロードライトガーネット 0.609ctルース

Tanzanian Rhodolite Garnet 0.609ct Loose Gemstone Sale price¥8,800
【12562649掲載】ペルー産バイカラーブルーオパール 4.379ctルース

Peruvian Bicolor Blue Opal 4.379 ct Loose Gemstone Sale price¥6,980
《Limited to 11 stones》Koshu Kiseki Kiriko plusthree Peridot (including lilypad) & Monsieur Saint-Jude cut peridot gacha《Multiple purchase discount available》

《Limited to 11 stones》Koshu Kiseki Kiriko plusthree Peridot (including lilypad) & Monsieur Saint-Jude cut peridot gacha《Multiple purchase discount available》 Sale price¥4,980
デュモルチェライトインクォーツ 0.387ctルース

Brazilian Dumortierite in Quartz 0.387ct loose stone Sale price¥3,980
【12562516掲載】スリランカ産非加熱スターサファイア 0.499ctルース

Unheated Sri Lankan star sapphire 3.9mm/0.499ct loose gemstone Sale price¥8,800
スリランカ産非加熱スターサファイア 0.523ctルース

Unheated Sri Lankan Star Sapphire 0.523ct Loose Stone Sale price¥9,800
スリランカ産非加熱スターサファイア 0.618ctルース

Unheated Sri Lankan Star Sapphire 0.618ct Loose Stone Sale price¥9,800

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.