¥10,000 - ¥30,000

Mexican Cantera Opal 3.051ct Loose Stone Sale price¥18,800

[On sale May 6th at 10 PM JST] Mexican Cantera Opal Loose Stone 7.207ct Sale price¥25,800

Mexican Cantera Opal 7.619 ct Loose Stone Sale price¥25,800

カメレオンダイヤモンド 0.079ctルース(FANCY LIGHT GRAY GREEN, SI-1)

Green Diamond, Chameleon Diamond 0.079ct Loose Stone (FANCY LIGHT GRAY GREEN, SI-1) Sale price¥25,800

グレーダイヤモンド 2.8mm/0.089ctルース(LIGHT GRAY, SI-2)

Gray Diamond 2.8mm/0.089ct Loose (LIGHT GRAY, SI-2) Sale price¥16,800

【32501879掲載】グレーダイヤモンド 0.096ctルース(VERY LIGHT GRAY, SI-1)

Gray Diamond, 2.9mm/0.096ct Loose (VERY LIGHT GRAY, SI-1) Sale price¥15,800

0.904ct Datolite, USA (Westfield, Manchester) Loose, with Japan-Germany certification Sale price¥29,800

Mexican Cantera Opal 1.867 ct Loose Stone Sale price¥12,800

[Sale on 5/6 at 22:00] Namibian Jeremejevite 0.073ct Loose Stone with Certificate Sale price¥15,800

[On sale 5/9 10 PM] Lazurite from Pakistan 0.103ct Loose with identification report Sale price¥19,800

[On sale May 2nd at 10 PM] Lazurite from Pakistan 0.150ct Loose Stone with Certificate Sale price¥29,800

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

【12562828掲載】コロンビア産パイライト付ユークレース 37.340ct原石

Euclase with Pyrite from Colombia 37.340ct Rough Gemstone (Hokikyosho) Sale price¥15,800

Spanish Sphalerite 6.2mm/1.320ct loose stone Sale price¥12,800

Oregon Sunstone from the United States 0.941ct loose stone Sale price¥12,800

Loose 2.120ct Oregon Sunstone from the USA Sale price¥18,800

【12562837掲載】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） 6.020ctルース

Brazilian Tinkerbell Quartz (Pink Fire Quartz) 6.020ct Loose Stone Sale price¥15,800

[On sale May 2nd at 10 PM JST] Mexican Cantera Opal 27.410ct Loose Stone Sale price¥25,800

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

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

0.308ct Unset Yellow Sapphire (Sri Lankan) Sale price¥13,800

Tanzanian Rhodolite Garnet 5.9mm/1.084ct Loose Sale price¥12,800

GGG (Gadolinium Gallium Garnet) 3.046ct Loose Stone Sale price¥18,800

【12561173掲載】メキシコ産ファイアオパール（ファセットカット） 0.645ctルース

Mexican Fire Opal (faceted) 0.645ct Loose Stone Sale price¥18,800

Pink tourmaline 1.575ct loose Sale price¥12,800

Medusa Quartz (Paraiba Quartz) 1.855ct loose Sale price¥18,800

Synthetic Spinel 1.668ct Loose Stone (Synthetic Blue Spinel) Sale price¥12,800

[Koshu Precious Stones Plusthree] Lavender Quartz (Scorolite) 1.761ct Loose Stone Sale price¥29,800

Colombian emerald 0.345ct loose stone (silky type) Sale price¥15,800

イエローダイヤモンド 0.071ctルース(FANCY INTENSE ORANGEY YELLOW, SI2)

Fancy intense orangey yellow diamond 0.071ct loose stone (FANCY INTENSE ORANGEY YELLOW, SI2) Sale price¥22,800

Vietnam unheated silky pink sapphire 0.580ct loose stone Sale price¥12,800

Tibetan bicolor andesine 2.657ct loose stone Sale price¥19,800

Spodumene 9.730ct loose stone Sale price¥22,800

Spodumene 9.001ct loose stone Sale price¥22,800

Sapphire 0.461ct loose stone Sale price¥12,800

Green Spodumene 6.419ct loose stone Sale price¥15,800

Rhodochrosite from Detroit City, USA 3.2mm/0.150ct loose stone Sale price¥19,800

Rhodochrosite from Detroit City, USA 3.1mm/0.154ct loose stone Sale price¥19,800

South African Sugilite 0.814ct loose stone Sale price¥12,800

South African Sugilite 7.3mm/1.034ct loose stone Sale price¥14,800

Zimbabwean Euclase 0.058ct loose stone Sale price¥29,800

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.213ctルース

[Sale on May 18th at 10 PM] Madagascar Bekily Blue Garnet (Color Change Garnet) 0.213ct Loose Stone Sale price¥22,800

0.186ct loose Bekily blue garnet (color-change garnet) from Madagascar Sale price¥18,800

Madagascar Bekily Blue Garnet (Color Change Garnet) 0.188ct Loose Stone Sale price¥18,800

[On sale May 1st at 10 PM JST] Madagascar Bekily Blue Garnet (Color Change Garnet) 0.206ct Loose Stone Sale price¥22,800

[On sale May 1st at 10 PM JST] Madagascar Bekily Blue Garnet (Color Change Garnet) 0.167ct Loose Stone Sale price¥16,800

Bekily Blue Garnet (Color Change Garnet) from Madagascar 0.230ct Loose Gemstone Sale price¥18,800

Madagascar Bekily Blue Garnet (Color Change Garnet) 0.257ct Loose Stone Sale price¥25,800

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.