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YAG（イットリウムアルミニウムガーネット） 1.772ctルース

YAG (Yttrium Aluminum Garnet) 7.0mm/1.772ct loose stone Sale price¥9,800
バイカラートルマリン 1.209ctルース

Brazilian bicolor tourmaline 1.209ct loose stone Sale price¥9,800
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） 10.840ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 10.840ct loose Sale price¥8,800
Tanzanite rough and loose stone set of 2 (average 3ct, cushion cut) from Tanzania {Multiple purchase discounts available}

Tanzanite rough and loose stone set of 2 (average 3ct, cushion cut) from Tanzania {Multiple purchase discounts available} Sale price¥6,980
スリランカ産クリソベリルキャッツアイ 0.519ctルース

Sri Lankan Chrysoberyl Cat's Eye 0.519ct Loose Stone Sale price¥8,800
ピンクスピネル 0.344ctルース

Myanmar pink spinel 0.344ct loose stone Sale price¥8,800
タンザニア産タンザナイト 0.298ctルース

Tanzanite from Tanzania 0.298ct loose stone Sale price¥9,800
タンザニア産タンザナイト 0.250ctルース

Tanzanite from Tanzania 0.250ct loose stone Sale price¥7,980
タンザニア産バイカラーゾイサイト 0.320ctルース

Tanzania Bicolor Zoisite 0.320ct Loose Stone Sale price¥7,980
タンザニア産タンザナイト 0.321ctルース

Tanzanite from Tanzania 0.321ct loose stone Sale price¥6,980
タンザニア産タンザナイト 0.250ctルース

Tanzanite from Tanzania 0.250ct loose stone Sale price¥8,800
グリーントルマリン 0.764ctルース

Brazilian Green Tourmaline 0.764ct Loose Stone Sale price¥9,800
イエローサファイア 0.344ctルース

Sri Lankan Yellow Sapphire 0.344ct Loose Sale price¥8,800
イエローサファイア 0.300ctルース

Sri Lankan Yellow Sapphire 0.300ct Loose Sale price¥8,800
バイカラートルマリン 0.675ctルース

Brazilian bicolor tourmaline 0.675ct loose stone Sale price¥9,800
ピンクトルマリン 0.448ctルース

Brazilian Pink Tourmaline 0.448ct Loose Stone Sale price¥8,800
イエローオパール 0.673ctルース

Mexican Yellow Opal 0.673ct Loose Sale price¥8,800
イエローオパール 0.428ctルース

Mexican Yellow Opal 0.428ct Loose Sale price¥8,800
カイヤナイト 1.042ctルース（通称：パライバカラーカイヤナイト）

Kyanite 1.042ct loose (commonly known as Paraiba color kyanite) Sale price¥8,800
カイヤナイト 1.052ctルース（通称：パライバカラーカイヤナイト）

Kyanite 1.052ct loose stone (commonly known as Paraiba color kyanite) Sale price¥9,800
カイヤナイト 0.963ctルース

Kyanite 0.963ct loose stone (commonly known as Paraiba color kyanite) Sale price¥6,980
アフガニスタン産ハックマナイト 15.600ct原石

Hackmanite from Afghanistan, 15.600ct rough stone Sale price¥8,800
ブラジル産ロマネサイトインクォーツ 4.331ctルース

Brazilian Romanesite in Quartz 4.331ct Loose Stone Sale price¥9,800
ミャンマー産パープルスピネル 0.514ctルース

Myanmar Purple Spinel 4.8mm/0.514ct Loose Stone Sale price¥6,980
[Limited to 9 stones] Argentine Inca Rose (Rhodochrosite, average 1.2ct) [Multiple purchase discount available]

[Limited to 9 stones] Argentine Inca Rose (Rhodochrosite, average 1.2ct) [Multiple purchase discount available] Sale price¥3,980
[Limited to 10 stones] Inca Rose from Argentina (Rhodochrosite, average 1.5ct) [Multiple purchase discount available]

[Limited to 10 stones] Inca Rose from Argentina (Rhodochrosite, average 1.5ct) [Multiple purchase discount available] Sale price¥5,980
カラーレスジルコン 0.508ctルース

Cambodian colorless zircon 0.508ct loose stone Sale price¥8,800
カラーレスジルコン 0.512ctルース

Cambodian colorless zircon 0.512ct loose stone Sale price¥8,800
カンボジア産カラーレスジルコン 0.533ctルース

Cambodian colorless zircon 0.533ct loose stone Sale price¥5,980
カンボジア産カラーレスジルコン 0.309ctルース

Cambodian colorless zircon 0.309ct loose stone Sale price¥4,980
【12555409掲載】メキシコ産カンテラオパール 3.280ctルース

Mexican Cantera Opal 3.280ct Loose Sale price¥9,800
ペタライト 0.713ctルース

Brazilian Petalite 0.713ct loose stone Sale price¥5,980
ペタライト 1.654ctルース

Brazilian Petalite 1.654ct loose stone Sale price¥9,800
カンテラオパール 1.534ctルース

Mexican Cantera Opal 1.534ct ​​Loose Sale price¥8,800
ブルーサファイア 0.279ctルース

Sri Lankan Blue Sapphire 3.8mm/0.279ct Loose Sale price¥8,800
Limited to 12 stones: 1 loose Australian iron opal (average 28ct, October birthstone opal) Multiple purchase discounts available

Limited to 12 stones: 1 loose Australian iron opal (average 28ct, October birthstone opal) Multiple purchase discounts available Sale price¥7,980
Limited to 5 stones: 1 Veracruz amethyst rough stone (from Mexico, February birthstone) Multiple purchase discount

Limited to 5 stones: 1 Veracruz amethyst rough stone (from Mexico, February birthstone) Multiple purchase discount Sale price¥1,980
【KEN氏】トルマリンキャッツアイ 0.890ctルース - カラッツSTORE

Brazilian Tourmaline Cat's Eye 0.890ct Loose Stone Sale price¥2,980
コンクパール（火焔模様有り） 0.572ctルース

Dominican Republic Conch Pearl (with flame pattern) 0.572ct loose Sale price¥8,800
Mausithit from Myanmar 5.246ct loose (Maushitsit)

Mausithit from Myanmar 5.246ct loose (Maushitsit) Sale price¥5,980
【KEN氏】トルマリンキャッツアイ 0.910ctルース - カラッツSTORE

Brazilian tourmaline cat's eye 0.910ct loose stone Sale price¥3,980
Mexican Smithsonite 2.697ct loose stone

Mexican Smithsonite 2.697ct loose stone Sale price¥9,800
Rose-cut beryllium-treated sapphire, 1 loose stone (4mm, September birthstone) {Multiple purchase discounts available}

Rose-cut beryllium-treated sapphire, 1 loose stone (4mm, September birthstone) {Multiple purchase discounts available} Sale price¥1,580
アメリカ産オレゴンサンストーン 0.239ctルース

Madagascar Oregon Sunstone 4mm/0.239ct Loose Stone Sale price¥7,980
オレゴンサンストーン 0.206ctルース

Oregon Sunstone from the United States 4.0mm/0.206ct loose stone Sale price¥8,800
オレゴンサンストーン 0.204ctルース

Oregon Sunstone from the United States 4.0mm/0.204ct loose stone Sale price¥6,980
Limited quantity: Colombian mango quartz (medium size) Multiple purchase discounts available

Limited quantity: Colombian mango quartz (medium size) Multiple purchase discounts available Sale price¥1,680

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.