Bicolor/Party color system

Some gemstones exhibit multiple colors within a single stone; two colors are called bicolor, three colors are tricolor, and multiple colors are called particolor. Some are clearly separated, while others have a gradation, so I think these are gemstones that give you a sense of their individuality.

Karatz GemMagazine
" Bicolor gemstone "

[Posted as 12562691] Malawi Bicolor Zircon 2.082ct Loose Sale price¥128,000

[On sale July 24 at 10 PM] Spanish Bicolor Sphalerite 6.6mm/1.521ct Loose Stone Sale price¥22,800

【Sales start: July 30, 10 PM JST】Tanzanian Bi-Color Grossular Garnet 0.319ct Loose Stone Sale price¥19,800

0.522ct bicolor sapphire loose stone from Madagascar Sale price¥6,980

[On sale July 19th at 10 PM] Nepal Bi-Color Kyanite 0.526ct Loose Stone Sale price¥15,800

[Available July 11, 10 PM JST] Kenya Bi-Color Grossular Garnet 0.809 ct Loose Stone Sale price¥25,800

[12563374 Posted] Bicolor Euclase from Zimbabwe, 0.055ct Loose Stone Sale price¥14,800

[Listed as 12562693] Malawi Bicolor Zircon 1.434ct Loose Sale price¥79,800

[Lottery Sale 0428_2_07] Watermelon Tourmaline 14.780ct Loose Stone Sale price¥128,000

[On Sale July 9, 10 PM JST] Bicolor Grossular Garnet from Tanzania 0.839ct Loose Stone Sale price¥19,800

[On sale July 3 at 10 PM] Tanzanian Bi-Color Grossular Garnet 0.934ct Loose Stone Sale price¥24,800

【Sale starts 10 PM on July 3rd】Tanzanian Bicolor Grossular Garnet 0.779 ct Loose Stone Sale price¥19,800

【Sales start at 10 PM on July 3rd (JST)】Bicolor Grossular Garnet from Tanzania 0.602ct Loose Gemstone Sale price¥16,800

[On sale July 9th at 10 PM JST] Tanzanian Bicolor Grossular Garnet 0.787ct Loose Stone Sale price¥19,800

[On sale July 15, 10 PM JST] Tanzanian Bi-Color Grossular Garnet, 0.882ct Loose Stone Sale price¥22,800

[On sale July 6th at 10 PM JST] 0.544ct Tanzanian Bi-Color Grossular Garnet Loose Gemstone Sale price¥14,800

【Sales start 10 PM on July 22nd (JST)】Tanzanian Bi-Color Grossular Garnet 0.855ct Loose Stone Sale price¥18,800

【Sales start 10 PM JST on July 6】Tanzanian Bi-Color Grossular Garnet 0.586ct Loose Gemstone Sale price¥14,800

[Sales start July 6, 10 PM] Bicolor Euclase from Zimbabwe 0.118ct Loose Gemstone with Certificate Sale price¥25,800

Bolivian Ametrine 36.887ct loose stone Sale price¥79,800

Nigerian bicolor tourmaline 0.379ct loose stone Sale price¥6,980

Tanzania Purple Zoisite 0.863ct Rough Stone Sale price¥7,980

[On Sale June 24 at 10 PM] Zimbabwe Euclase 0.183 ct Loose Stone with Certificate Sale price¥35,800

[On Sale June 26th at 10 PM] Zimbabwean Euclase 3.4mm/0.206ct Loose Gemstone with Certification Sale price¥29,800

[On Sale June 18th at 10 PM] Madagascar Bi-Color Sapphire 3.7mm/0.271ct Loose Gemstone Sale price¥6,980

Bicolor Zoisite 1.100ct Loose Stone (Bicolor Tanzanite) Sale price¥18,800

Bicolor tourmaline 1.329ct loose Sale price¥9,800

Bicolor tourmaline 0.429ct loose Sale price¥5,980

Bicolor Tourmaline 0.378ct Loose Stone (Hexagonal Cut) Sale price¥8,800

[On sale May 31st at 10 PM] Malawi Bicolor Zircon (Malawi Zircon) 0.985 ct Loose Sale price¥39,800

Amethyst 4.249ct rough stone Sale price¥4,980

Namibian Jeremejevite 0.261ct loose stone Sale price¥45,800

Brazilian Bicolor Euclase 2.4mm/0.051ct Loose Stone Sale price¥18,800

【Sales start 5/13 10 PM JST】Sri Lankan Bi-Color Sapphire, 0.434 ct Loose Stone Sale price¥12,800

[On Sale May 12th at 10 PM] Bi-Color Grossular Garnet from Tanzania, 2.057 ct, Loose Stone Sale price¥55,800

ブラジル産トリカラートルマリン 32.207ctルース (パーティカラートルマリン）

[On sale May 10th at 10 PM] Brazilian Tricolor Tourmaline 32.207ct Loose Stone (Parti-color Tourmaline) Sale price¥398,000

Bicolor Zoisite 0.823ct rough stone Sale price¥6,980

Purple Zoisite 2.617ct rough stone Sale price¥9,800

Bicolor Tanzanite 1.677ct rough stone Sale price¥7,980

Bicolor Tanzanite 5.582ct rough stone Sale price¥18,800

Brazilian Bicolor Tourmaline 0.780ct Loose Sale price¥12,800

Finnish Labradorite 56.209ct Loose Gemstone Sale price¥16,800

Mexican fire agate 3.613ct loose Sale price¥14,800

【Available 5/5 at 10 PM JST】Zimbabwe Bicolor Euclase 3.0mm/0.106ct Loose Stone Sale price¥23,800

Madagascar Bicolor Sphene 1.551ct Loose Stone Sale price¥15,800

【12562577掲載】ケニア産バイカラーグロッシュラーガーネット 0.790ctルース

Bi-color grossular garnet (bi-color tsavorite) from Kenya, 0.790 ct loose stone Sale price¥24,800

Bicolor Grossular Garnet (Bicolor Tsavorite) from Kenya, 0.761 ct, Loose Sale price¥22,800

Bicolor Grossular Garnet from Kenya (Bicolor Tsavorite) 0.496ct Loose Sale price¥14,800

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.