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Brazilian rutilated quartz (rutile/rutile quartz (rutilated quartz)) 1 loose stone (6.0-6.5mm, for beginners) {Multiple purchase discounts available}

Brazilian rutilated quartz (rutile/rutile quartz (rutilated quartz)) 1 loose stone (6.0-6.5mm, for beginners) {Multiple purchase discounts available} Sale price¥2,580
Brazilian rutilated quartz (rutile/rutilated quartz (rutilated quartz)) 1 loose stone (3.0-3.5mm, for beginners) {Multiple purchase discounts available}

Brazilian rutilated quartz (rutile/rutilated quartz (rutilated quartz)) 1 loose stone (3.0-3.5mm, for beginners) {Multiple purchase discounts available} Sale price¥1,580
{2 stones remaining} 1 Labradorite loose stone (20 x 15 mm, for beginners) {Multiple purchase discounts available}

{2 stones remaining} 1 Labradorite loose stone (20 x 15 mm, for beginners) {Multiple purchase discounts available} Sale price¥3,980
ユーパーライト 50.042ct原石

American Euperlite 50.042ct rough stone Sale price¥3,980
Limited to 15 stones, 1 raw stone of Chinese hemimorphite, multiple purchase discount

Limited to 15 stones, 1 raw stone of Chinese hemimorphite, multiple purchase discount Sale price¥3,980
[Limited to 24 stones] Tourmaline Gacha💎Indigolite tourmaline, clover cut, and other single loose stones {Multiple purchase discounts available}

[Limited to 24 stones] Tourmaline Gacha💎Indigolite tourmaline, clover cut, and other single loose stones {Multiple purchase discounts available} Sale price¥2,580
グリーンサファイア 0.299ctルース

Green Sapphire 0.299ct Loose (Silky Sapphire) Sale price¥3,980
SV925 Silver Chain 0.7mm/1.1mm [40cm]

SV925 Silver Chain 0.7mm/1.1mm [40cm] Sale priceFrom ¥1,580
American Anthill Garnet (Chrome Pyrope Garnet) 1 Stone Loose (Princess Cut, 2.5mm) {Multiple Purchase Discounts Available}

American Anthill Garnet (Chrome Pyrope Garnet) 1 Stone Loose (Princess Cut, 2.5mm) {Multiple Purchase Discounts Available} Sale price¥2,980
エチオピア産オパール 0.466ctルース

Ethiopian Opal 0.466ct Loose (Heart Shape, Faceted Cut) Sale price¥3,980
オーストラリア産レインボーラティスサンストーン 0.498ctルース

Australian rainbow lattice sunstone 0.498ct loose Sale price¥3,980
レピドクロサイトインクォーツ 0.992ctルース

Brazilian lepidocrocite in quartz 0.992ct loose Sale price¥4,980
H&C(ハート&キューピッド)ダイヤモンド1.2mmルース - カラッツSTORE

H&C (Hearts & Cupids) Diamond 1.5mm Loose (VS Class, DG Class, Melee Diamonds) {Multiple Purchase Discounts Available} Sale price¥4,980
Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available]

Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available] Sale price¥2,980
[Limited to 6 stones] [Mr. Sanjay] Mexican opal or Sri Lankan spinel 1 loose stone (with defects) [Multiple purchase discount available]

[Limited to 6 stones] [Mr. Sanjay] Mexican opal or Sri Lankan spinel 1 loose stone (with defects) [Multiple purchase discount available] Sale price¥3,980
Limited to 6 stones: Aquamarine + Iolite loose stone set of 2 (March birthstone) Multiple purchase discounts available

Limited to 6 stones: Aquamarine + Iolite loose stone set of 2 (March birthstone) Multiple purchase discounts available Sale price¥2,980
タンザニア産コーネルピンキャッツアイ 0.725ctルース

Tanzanian Kornerupine Cat's Eye 0.725ct Loose Stone Sale price¥4,980
ネパール産オーシャンブルーカイヤナイト＋ブルーカイヤナイト2石セット《複数購入割引有》

Limited to 20 sets: Nepalese Ocean Blue Kyanite + Blue Kyanite 2-stone set (Multiple purchase discounts available) Sale price¥3,980
《限定17石》イギリス・ロジェリー産フローライト1石ルース《複数購入割引有》

Limited to 17 stones: 1 loose fluorite stone from Rogerley, England. Discounts available for multiple purchases. Sale price¥3,980
スピネル 0.365ctルース

Purple spinel 4.5mm/0.365ct loose Sale price¥4,980
ブラジル産アレキサンドライト・ムーンストーン2石セット（6月誕生石セット）《複数購入割引有》

《Limited to 32 stones》 Brazilian Alexandrite Moonstone 2 stone set (June birthstone set)《Multiple purchase discount available》 Sale price¥3,980
タンザニア・マヘンゲ産ピンクスピネル原石・ルース2石セット（プリンセスカット）《複数購入割引有》

《Limited to 20 stones》 Pink spinel raw stone from Mahenge, Tanzania, loose 2 stone set (princess cut)《Multiple purchase discount available》 Sale price¥3,980
ブラジル産グリーンクォーツ1石ルース（10mm）

[Limited to 9 stones] Brazilian green quartz 1 stone loose (10mm) [Multiple purchase discount available] Sale price¥3,980
ブラジル産グリーンクォーツ1石ルース

《Limited to 6 stones》 1 stone loose green quartz from Brazil (8mm, concave cut) 《Discount available for multiple purchases》 Sale price¥3,980
[Limited 7 stones] [Mr. KEN] 1 stone loose Andalusite from Spain (Rose cut, 3.5mm) [Multiple purchase discount] [Yuichiro Abe's work motif]

[Limited 7 stones] [Mr. KEN] 1 stone loose Andalusite from Spain (Rose cut, 3.5mm) [Multiple purchase discount] [Yuichiro Abe's work motif] Sale price¥4,980
Sold out Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Intense Pink) 1 stone loose (multiple purchase discount available)

Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Intense Pink) 1 stone loose (multiple purchase discount available)
Raw peridot + 2 loose stones set (August birthstone)《Discount available for multiple purchases》

Raw peridot + 2 loose stones set (August birthstone)《Discount available for multiple purchases》 Sale price¥2,980
Synthetic moissanite 1 stone loose (blue moissanite, 1.2mm)《Multiple purchase discount available》

Synthetic moissanite 1 stone loose (blue moissanite, 1.2mm)《Multiple purchase discount available》 Sale price¥1,000
ブラジル産デュモルチェライトインクォーツ 0.309ctルース

Brazilian dumortierite in quartz 0.309ct loose Sale price¥4,980
Moloxite from Madagascar 1 stone loose (green apatite, pear-shaped cut)《Multiple purchase discounts available》

Moloxite from Madagascar 1 stone loose (green apatite, pear-shaped cut)《Multiple purchase discounts available》 Sale price¥2,980
Moloxite from Madagascar 1 stone loose (green apatite, oval cut)《Multiple purchase discount available》

Moloxite from Madagascar 1 stone loose (green apatite, oval cut)《Multiple purchase discount available》 Sale price¥2,980
Afghanite 1 stone loose from Afghanistan《Discount available for multiple purchases》

Afghanite 1 stone loose from Afghanistan《Discount available for multiple purchases》 Sale price¥2,980
《Limited to 7 stones》1 stone tourmaline in quartz from Sri Lanka loose (8-9mm, octagonal cut)《Multiple purchase discount available》

《Limited to 7 stones》1 stone tourmaline in quartz from Sri Lanka loose (8-9mm, octagonal cut)《Multiple purchase discount available》 Sale price¥3,980
アフガニスタン産シーライト 0.632ctルース

Sealite from Afghanistan 0.632ct loose Sale price¥3,980
アフガニスタン産シーライト 0.938ctルース

Sealite from Afghanistan 0.938ct loose Sale price¥3,980
アフガニスタン産シーライト 0.905ctルース

Sealite from Afghanistan 0.905ct loose Sale price¥3,980
アフガニスタン産シーライト 0.604ctルース

Sealight from Afghanistan 0.604ct loose Sale price¥3,980
シーライト 0.822ctルース

Sealite from Afghanistan 0.822ct loose Sale price¥4,980
シーライト 0.602ctルース

Sealight from Afghanistan 0.602ct loose Sale price¥3,980
デュモルチェライトインクォーツ 3.814ct原石

Brazilian dumortierite in quartz 3.814ct raw stone Sale price¥3,980
《Limited to 16 stones》1 tanzanite stone (octagonal cut, 3.0mm)《Multiple purchase discount available》

《Limited to 16 stones》1 tanzanite stone (octagonal cut, 3.0mm)《Multiple purchase discount available》 Sale price¥2,980
タンザニア産クロムトルマリン 0.076ctルース

Chrome tourmaline from Tanzania 2.5mm/0.076ct loose Sale price¥3,980
Chrome tourmaline from Tanzania 2.5mm/0.061ct loose

Chrome tourmaline from Tanzania 2.5mm/0.061ct loose Sale price¥3,980
カンボジア産ブルージルコン 0.205ctルース

Cambodian Blue Zircon 0.205ct Loose Sale price¥4,980
カンボジア産ブルージルコン 0.204ctルース

Cambodian Blue Zircon 0.204ct Loose Sale price¥4,980
カンボジア産ブルージルコン 0.221ctルース

Cambodian Blue Zircon 0.221ct Loose Sale price¥4,980
雲母インクォーツ 1.967ctルース

Mica in quartz 1.967ct loose Sale price¥3,980
アベンチュリンアクアマリンキャッツアイ 1.210ctルース

Aventurine Aquamarine Cat's Eye 1.210ct Loose Sale price¥4,980

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.