Width: 7.1 - 8.0mm

[On sale July 11th at 10 PM] Brazilian Amphibole-in-Danburite 2.251ct Loose Stone with Japanese and German Identification Sale price¥29,800

[On sale July 12th at 10 PM] Malawi Moonstone 2.184ct Loose Sale price¥13,800

[On sale 7/12 at 10 PM] US Oregon Sunstone 7.1mm/1.397ct Loose Stone Sale price¥39,800

オーストラリア産オーストラリア産レインボーラティスサンストーン 2.208ctルース

[Sale on 7/10 at 10 PM] Australian Rainbow Lattice Sunstone 2.208ct Loose Stone Sale price¥22,800

[Lottery Sale_0612_09] Yellow Sapphire 2.150ct Loose Gemstone GIT Sale price¥158,000

Lottery Sale 11 [For Winners Only] [Listing 12562752] Colombian Pyrite in Emerald Loose Stone 2.107ct Sale price¥49,800

Brazilian rutilated quartz (rutilated quartz) 7.8mm/1.406ct loose stone Sale price¥8,800

Almandine Garnet 1.471ct Loose Stone Sale price¥14,800

Almandine Garnet 1.988ct Loose Stone Sale price¥16,800

Almandine Garnet 1.485ct Loose Stone Sale price¥15,800

Indian Moonstone 8mm/1.879ct Loose Sale price¥6,980

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） 1.440ctルース

[On sale June 21, 10 PM JST] Madagascar Andesine-Labradorite (commonly known as Rainbow Moonstone) 1.440ct Loose Gemstone Sale price¥25,800

[On Sale June 23rd at 10 PM] Myanmar Black Spinel 3.061ct Loose Stone with Gemstone Identification Report Sale price¥15,800

Australian Rainbow Lattice Sunstone 1.746ct Loose Stone Sale price¥12,800

Sky blue topaz 1.719ct loose stone Sale price¥8,800

Brazilian Bicolor Tourmaline 7.2mm/1.326ct Loose Stone Sale price¥18,800

[On sale June 14th, 10 PM JST] Madagascar Apatite Cat's Eye 1.734ct Loose Stone, Nissaihou Sale price¥9,800

【Sales begin on 6/21 at 10 PM】Mexican Fire Opal 1.857ct Loose Gemstone Sale price¥25,800

[12550851] 2.944ct Mozambique pink tourmaline loose stone Sale price¥39,800

[Sales start 10 PM on 6/6] Madagascar Labradorite 0.823ct Loose Gemstone Sale price¥7,980

[On sale June 6th, 10 PM] Nepal Kyanite 2.906ct Loose Stone with Certificate Sale price¥19,800

[On sale June 6, 10 PM JST] Malawi Moonstone 2.233ct Loose Stone Sale price¥15,800

[On sale June 13th, 10 PM JST] Malawi Moonstone 2.055ct Loose Stone Sale price¥16,800

[Sale starts June 13th at 10 PM] Kochi Prefecture Blood Coral 2.340ct Loose Stone Sale price¥19,800

[Sale on June 13 at 10 PM] Kochi Prefecture Red Coral Loose Stone 2.294ct Sale price¥19,800

[Available June 13, 10 PM JST] Kochi Prefecture Blood Coral 6.848ct Branch (Rough) Sale price¥9,800

[On Sale May 22 at 10 PM JST] Australian Black Opal 1.393ct Loose Stone Sale price¥48,800

[On sale May 10th at 10 PM] Tanzanian Tanzanite 0.406ct Loose Stone Sale price¥12,800

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） 2.678ctルース

[Sale on May 26th at 10 PM] Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture 7.4mm/2.678ct Loose Stone Sale price¥15,800

[On sale 9 May, 10 PM] Brazilian Green Spodumene, 1.460 ct loose gemstone Sale price¥12,800

モザンビーク産エルバイトトルマリン 1.456ctルース（CuO:0.1%,MnO:0.4%）

Elbaite tourmaline from Mozambique 1.456ct loose stone (CuO: 0.1%, MnO: 0.4%) Sale price¥45,800

モザンビーク産エルバイトトルマリン 1.574ctルース（CuO:0.1%,Mn0:3.1％）

Elbaite tourmaline from Mozambique 1.574ct loose stone (CuO: 0.1%, Mn0: 3.1%) Sale price¥55,800

Lavender quartz (scorolite) 2.181ct loose stone Sale price¥8,800

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

Burmese ruby 3.72ct loose GIA/CGL Sale price¥298,000

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

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

Ethiopian Opal 2.131ct Loose Sale price¥9,800

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

Lepidocrocite in quartz 1.087ct loose Sale price¥5,980

Zimbabwean Bi-Color Euclase Rough 2.976 ct Sale price¥59,800

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

[On sale May 2 at 10 PM JST] Sri Lankan Topaz Cat's Eye 3.384ct Loose Stone with Japan-Germany Gemological Report Sale price¥12,800

[On Sale June 13, 10 PM JST] Sri Lankan Enstatite 2.567ct Loose Stone with Japan-Germany Gemological Report Sale price¥18,800

【12560344掲載】モザンビーク産アルマンディンガーネット 3.073ctルース

3.073ct Mozambique Almandine Garnet Loose Stone Sale price¥22,800

Mexican Fire Opal 1.424ct Loose Sale price¥39,800

Bulgarian Sphalerite 7.6mm/2.233ct Loose Sale price¥69,800

Sunstone (Illusion Sunstone) 1.908ct loose Sale price¥8,800

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.