colored stone loose

A list of colored stones and loose gemstones.

Manganotantalite 0.736ct loose stone from Japan and Germany Sale price¥158,000

Colombian Mica in Emerald 4.6mm/0.210ct Loose Stone Sale price¥12,800

Colombian Trapiche Emerald 0.147ct Loose Sale price¥9,800

Colombian mint color emerald 0.178ct loose stone Sale price¥6,980

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%）

Unheated Brazilian Paraiba Tourmaline 0.037ct loose stone (CuO: 1.9%, MnO: 2.3%) Sale price¥49,800

【12552018掲載】コロンビア産トラピッチェエメラルド 0.416ctルース

Colombian Trapiche Emerald 0.416ct Loose Sale price¥22,800

Ethiopian Opal 5.2mm/0.688ct Loose (Sphere) Sale price¥6,980

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%）

Unheated Brazilian Paraiba Tourmaline 0.067ct loose stone (CuO: 1.4%, MnO: 2.4%) Sale price¥59,800

Limited to 7 stones: 1 loose Sri Lankan spinel (lozenge cut) stone. Discounts available for multiple purchases. Sale price¥4,980

Limited to 8 stones: 1 Brazilian Alexandrite loose stone (rose cut, 3.2mm/average 0.12ct) Multiple purchase discounts available Sale price¥11,000

Limited to 9 stones: 1 Brazilian Alexandrite loose stone (rose cut, 3mm/average 0.105ct) Multiple purchase discounts available Sale price¥9,800

Limited to 4 stones: 1 Brazilian Alexandrite loose stone (rose cut, 3.3mm/average 0.13ct) Multiple purchase discounts available Sale price¥12,800

非加熱ブラジル産パライバトルマリン 0.034ctルース（CuO:1.8%、MnO:2.4%）

Unheated Brazilian Paraiba Tourmaline 0.034ct loose stone (CuO: 1.8%, MnO: 2.4%) Sale price¥39,800

【12552015掲載】コロンビア産トラピッチェエメラルド 0.266ctルース

Colombian Trapiche Emerald 0.266ct Loose Sale price¥14,800

【12552125掲載】デトロイトシティ産ロードクロサイト 0.439ctルース

Detroit City Rhodochrosite 4mm/0.439ct Loose Stone Sale price¥8,800

Unheated Brazilian Paraiba Tourmaline 0.071ct loose stone (CuO: 2.1%, MnO: 2.2%) Sale price¥59,800

【さくらシェイプ】カンボジア産ブルージルコン 8mm/2.909ct《コラボ》ルースワッペン

[Sakura Shape] Cambodian Blue Zircon 8mm/2.909ct {Collaboration} Loose Patch Sale price¥59,800

[Sakura Shape] Brazilian White Topaz 8.5mm/2.870ct {Collaboration} Loose Patch Sale price¥39,800

Mexican Cantera Opal 4.835ct Loose Sale price¥19,800

Limited to 7 stones: 1 loose stone of spinel (blue/purple) from Madagascar. Discounts available for multiple purchases. Sale price¥3,980

【12549199掲載】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） 0.543ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 0.543ct loose Sale price¥6,980

【12549333掲載】ブラジル産メデューサクォーツ（パライバクォーツ） 1.945ctルース

Brazilian Medusa Quartz (Paraiba Quartz) 1.945ct Loose Stone Sale price¥24,800

Brazilian Goshenite 0.771ct loose stone Sale price¥6,980

Synthetic Moissanite 10mm/4.121ct Loose Stone (Portuguese Cut) Sale price¥19,800

Chinese bicolor fluorite 0.950ct loose stone Sale price¥6,980

Brazilian Paraiba Tourmaline 0.200ct loose stone (CuO: 1.7%, MnO: 2.8%) Sale price¥98,000

Brazilian Dolomite 4.070ct Loose Stone, Japan-Germany Mirror Sale price¥98,000

Canadian Catapleite 0.298ct Loose Stone, Japan-Germany Mirror Sale price¥49,800

Colombian Trapiche Emerald 0.372ct Loose Sale price¥19,800

Colombian Trapiche Emerald 0.299ct Loose Sale price¥16,800

Tanzanite from Tanzania 0.262ct loose stone Sale price¥8,800

Tanzania Bicolor Zoisite 0.397ct Loose Stone Sale price¥8,800

Colombian pyrite emerald 13.691ct loose stone Sale price¥398,000

Brazilian Green Tourmaline 26.071ct Loose Stone (Sugarloaf Cut) Sale price¥298,000

ブラジル産バイカラートルマリン 6.928ctルース（バイカラーブルートルマリン）

Brazilian bicolor tourmaline 6.928ct loose stone (bicolor blue tourmaline) Sale price¥298,000

【さくらインカット】ブラジル産レピドクロサイトインクォーツ 11mm/3.793ctルース

[Sakura Incut] Brazilian Lepidocrocite in Quartz 11mm/3.793ct Loose Stone Sale price¥39,800

Colombian pyrite emerald 8.044ct loose stone Sale price¥188,000

Limited to 2 stones: 1 loose Morganite stone from Mozambique (cabochon cut, April birthstone) Multiple purchase discounts available Sale price¥3,980

Limited to 21 stones: 1 loose Tanzanite stone from Tanzania (5 x 3 mm, oval cut) Multiple purchase discounts available Sale price¥4,980

Colombian Trapiche Emerald 0.392ct Loose Sale price¥19,800

American Red Beryl 0.106ct Loose Sale price¥24,800

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¥55,800

Canary Yellow Tourmaline from Mozambique 0.223ct loose stone Sale price¥8,800

American benitoite 0.074ct loose Sale price¥8,800

Colombian Trapiche Emerald 0.222ct Loose Sale price¥18,800

Limited to 11 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases. Sale price¥3,980

Colombian Trapiche Emerald 0.260ct Loose Sale price¥14,800

Zimbabwean Blue Apatite (UV type) 1.056ct loose stone Sale price¥15,800

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.