¥30,000 - ¥50,000

Brazilian Paraiba Tourmaline in Quartz 3.049ct loose stone Sale price¥49,800

Kenyan Gold Sheen Sapphire 3.6mm/0.302ct Loose Stone Sale price¥35,800

非加熱ブラジル産パライバトルマリン 0.044ctルース（CuO:1.6%、MnO:2.0%）

Unheated Brazilian Paraiba Tourmaline 0.044ct loose stone (CuO: 1.6%, MnO: 2.0%) Sale price¥45,800

非加熱ブラジル産パライバトルマリン 0.068ctルース（CuO:1.4%、MnO:2.3%）

Unheated Brazilian Paraiba Tourmaline 0.068ct loose stone (CuO: 1.4%, MnO: 2.3%) Sale price¥49,800

Diamond 0.171ct loose stone (E, VS2, radiant cut) Sale price¥35,800

【12555024掲載】ライモナイトインクォーツ（オーロラクォーツ） 7.281ctルース

[Dandelion Cut] Brazilian Limonite in Quartz (Aurora Quartz) 13.5mm/7.281ct Loose Stone Sale price¥39,800

Brazilian Green Tourmaline 1.333ct Loose Stone Sale price¥49,800

Brazilian Green Tourmaline 0.935ct Loose Stone Sale price¥45,800

Brazilian Green Tourmaline 1.193ct Loose Stone Sale price¥49,800

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） 1.742ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 1.742ct loose stone Sale price¥37,800

【甲州貴石切子plusthree】ロッククリスタル 15mm/10.059ctルース《昴×灯》(ダブル切子タイプ) ワッペン

[Koshu Precious Stone Cut Plusthree] Rock Crystal 15mm/10.059ct Loose Stone "Subaru x Hikaru" (Double Cut Type) Patch Sale price¥45,800

Diamond 0.128ct loose stone (cabochon cut, maroon cut) Sale price¥39,800

Colombian pyrite-mica emerald 0.739ct loose stone Sale price¥36,800

Colombian pyrite-mica emerald 0.628ct loose stone Sale price¥35,800

Elbaite tourmaline from Mozambique 2.964ct loose stone (CuO: 0.1%, Mn0: 4.4%) Sale price¥45,800

Namibian Jeremejevite 0.158ct loose stone Sale price¥45,800

Spanish Sphalerite 2.726ct loose stone Sale price¥39,800

Spanish bicolor sphalerite 3.504ct loose stone Sale price¥38,800

Additional charge: K18WG (base metal) + 10,000 yen Sale price¥40,000

Additional charge: K18PG (base metal) + 15,000 yen Sale price¥35,000

Additional charge: K18PG (base metal) + 20,000 yen Sale price¥35,000

Additional charge: K18WG (base metal) + 15,000 yen Sale price¥35,000

Mozambique Pink Tourmaline 1.122ct Loose Stone (Contains CuO) Sale price¥39,800

Pakistani Lazurite (Azurite) 0.305ct Loose Stone Sale price¥49,800

非加熱ブラジル産パライバトルマリン 0.037ctルース（CuO:1.9%、MnO:2.3%）

Brazilian Paraiba Tourmaline 0.037ct Loose (CuO:1.9%, MnO:2.3%) Sale price¥39,800

非加熱ブラジル産パライバトルマリン 0.067ctルース（CuO:1.4%、MnO:2.4%）

Paraiba Tourmaline from Brazil 0.067 ct loose (CuO: 1.4%, MnO: 2.4%) Sale price¥45,800

Unheated Brazilian Paraiba Tourmaline 0.071ct loose stone (CuO: 2.1%, MnO: 2.2%) Sale price¥45,800

Brazilian Paraiba Tourmaline 0.821ct rough stone Sale price¥39,800

Australian Shell Opal (Shell Opal) 73.321ct Rough Stone Sale price¥49,800

非加熱ブラジル産パライバトルマリン 0.051ctルース（CuO:2.0%、MnO:2.3%）

Unheated Brazilian Paraiba Tourmaline 0.051ct loose stone (CuO: 2.0%, MnO: 2.3%) Sale price¥39,800

Brazilian pink tourmaline 1.458ct loose stone Sale price¥39,800

Brazilian Tourmaline (untreated) 5.120ct loose stone Sale price¥39,800

Brazilian Indigolite Tourmaline 1.109ct Loose Stone, Japan-Germany Exchange Sale price¥33,800

Ethiopian Opal 167.191ct Rough Stone Sale price¥39,800

Myanmar Podretteite 0.238ct loose stone Nissaiho Sale price¥35,800

【スタッフセレクション】タンザナイト 0.231ctルース（セミオーダーメイドセット）

[Staff Selection] Tanzanite 0.231ct loose stone from Tanzania (semi-custom made set) Sale price¥47,800

【KEN氏】ブラジル産アメジスト 5mm/0.390ctルース（セミオーダーメイドセット）

[Staff Selection] [Mr. KEN] Brazilian Amethyst 5mm/0.390ct Loose Stone (Semi-Custom Made Set) Sale price¥47,800

【スタッフセレクション】　【KEN氏】タンザニア産アイオライト 3.7mm/0.150ctルース（セミオーダーメイドセット）

[Staff Selection] [Mr. KEN] Tanzanian Iolite 3.7mm/0.150ct Loose Stone (Semi-Custom Made Set) Sale price¥47,800

Solo (Simple Order Earring Frame/Chain Type) Sale price¥49,800

【KEN氏】ブラジル産グリーントルマリン 5.2mm/0.584ctルース（セミオーダーメイドセット）

[Staff Selection] [Mr. KEN] Brazilian Green Tourmaline 5.2mm/0.584ct Loose Stone (Semi-Custom Made Set) Sale price¥47,800

Additional charge: K18WG (base metal) + 10,000 yen Sale price¥42,000

Additional charge: K18YG (base metal) + 10,000 yen Sale price¥37,000

【スタッフセレクション】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） 0.450ctルース（セミオーダーメイドセッ

[Staff Selection] Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.450ct Loose Stone (Semi-Custom Made Set) Sale price¥47,800

[Staff Selection] [Mr. KEN] Tanzanian Iolite 5.5mm/0.589ct Loose Stone (Semi-Custom Made Set) Sale price¥47,800

American red beryl 0.207ct loose Sale price¥49,800

Chrysoberyl cat's eye 2.843ct loose Sale price¥39,800

Brazilian bicolor tourmaline 7.489ct loose Sale price¥49,800

Pink tourmaline 1.690ct loose 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.