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ピンクフローライト 6.530ctルース

Pink fluorite 6.530ct loose Sale price¥5,980
【サンジェ氏】合成モアッサナイト 0.714ctルース

Synthetic Moissanite 0.714ct loose stone Sale price¥6,980
マデイラシトリン 6mm/0.914ctルース

Madeira Citrine 6mm/0.914ct loose Sale price¥8,800
オパール 21.584ctルース 日独

Opal 21.584ct loose Japanese and German Sale price¥8,800
【KEN氏】バイカラーサファイア 0.853ctルース - カラッツSTORE

Bicolor sapphire 0.853ct loose stone Sale price¥9,800
モルガナイト 1.135ctルース

Morganite 1.135ct loose Sale price¥5,980
合成モアッサナイト 0.245ctルース

Synthetic moissanite 0.245ct loose (shield cut) Sale price¥6,980
ピンクトルマリンキャッツアイ 5.460ctルース

Pink tourmaline cat's eye 5.460ct loose Sale price¥8,800
バイカラートルマリン 6.40ctルース

Bicolor tourmaline 6.40ct loose Sale price¥7,980
ルビー 0.182ctルース

Ruby 0.182ct loose Sale price¥5,980
グリーンランド産ピンクサファイア 4.3mm/0.465ctルース

Pink sapphire from Greenland 4.3mm/0.465ct loose with certificate Sale price¥6,980
グリーンランド産ピンクサファイア 0.336ctルース 証明書付

Pink sapphire from Greenland 0.336ct loose with certificate Sale price¥9,800
コーネルピン 1.011ctルース

Cornel pin 1.011ct loose Sale price¥8,800
エメラルド 77.265ct原石

[Posted 12541074] Emerald 77.265ct rough stone Sale price¥6,980
エメラルド 162.375ct原石

[Posted 12541071] Emerald 162.375ct rough stone Sale price¥9,800
ブラジル産パライバトルマリン 96.184ct原石

Brazilian Paraiba tourmaline 96.184ct raw stone Sale price¥8,800
【KEN氏】ミャンマー産ピンクスピネル 0.325ctルース - カラッツSTORE

Myanmar pink spinel 0.325ct loose stone Sale price¥6,980
【KEN氏】ピンクトルマリン 0.841ctルース

Pink tourmaline 0.841ct loose stone Sale price¥8,800
[Resale] [Jeweler's Tools] Black Light, 3 Loose Stones (Ruby, Red Spinel, Oil in Quartz) with Rechargeable Battery

[Resale] [Jeweler's Tools] Black Light, 3 Loose Stones (Ruby, Red Spinel, Oil in Quartz) with Rechargeable Battery Sale price¥6,980
Ice blue diamond 1.2mm or 2.0mm 1 stone (VS class equivalent, round cut) {Multiple purchase discount available}

Ice blue diamond 1.2mm or 2.0mm 1 stone (VS class equivalent, round cut) {Multiple purchase discount available} Sale priceFrom ¥4,980

[Option] Certificate issuance fee Sale priceFrom ¥2,750
[Jeweler's Tools] White penlight (for loose), loose 3-piece set

[Jeweler's Tools] White penlight (for loose), loose 3-piece set Sale price¥5,980
H&C (Heart & Cupid) Diamond 2.0mm Loose (VS Class, DG Class, 2mm Melee Diamonds) {Multiple Purchase Discounts Available}

H&C (Heart & Cupid) Diamond 2.0mm Loose (VS Class, DG Class, 2mm Melee Diamonds) {Multiple Purchase Discounts Available} Sale price¥7,980
《再販売》ハイヒール（ロッククリスタル）1石《宝石ハイヒール1個 - カラッツSTORE

High heels (rock crystal) 1 stone (gem high heels)《Discount available for multiple purchases》 Sale price¥6,980
1 stone of Brazilian blue tourmaline (3 x 4 mm pear shape/oval cut/3 x 5 mm pear shape/4 x 5 mm oval cut)《Discount available for multiple purchases》

1 stone of Brazilian blue tourmaline (3 x 4 mm pear shape/oval cut/3 x 5 mm pear shape/4 x 5 mm oval cut)《Discount available for multiple purchases》 Sale priceFrom ¥2,980
[Available from 10 PM on August 11th] Gemstone Encyclopedia Playing Cards + 4 Gemstones in a Gemstone Lucky Bag (Valued at 10,000 yen)

[Available from 10 PM on August 11th] Gemstone Encyclopedia Playing Cards + 4 Gemstones in a Gemstone Lucky Bag (Valued at 10,000 yen) Sale price¥6,000
スリランカ産サファイア《ラトゥナプラ》1石ルース(平均0.75ct)

Gem Gacha💎 Sri Lankan Sapphire《Ratnapura》1 loose stone (average 0.75ct)《Multiple purchase discount available》 Sale price¥5,980
1 blue fluorescent diamond (H&C, 3EX, VS-SI class equivalent, 2.0mm) {Multiple purchase discount available}

1 blue fluorescent diamond (H&C, 3EX, VS-SI class equivalent, 2.0mm) {Multiple purchase discount available} Sale price¥8,980
Top Quality: Brazilian Alexandrite 1 Stone Loose (2.0mm, Hematita Mine) Multiple Purchase Discounts Available

Top Quality: Brazilian Alexandrite 1 Stone Loose (2.0mm, Hematita Mine) Multiple Purchase Discounts Available Sale price¥9,800
コロンビア産エメラルド ルース・原石2石セット（ラウンドカット3mm）

Colombian emerald loose rough stone set of 2 stones (round cut 3mm)《Multiple purchase discount available》 Sale price¥6,980
プリンセスカットダイヤモンド 2.0mm ルース（VSクラス相当）

Princess cut diamond 2.0mm loose (equivalent to VS class)《Multiple purchase discount available》 Sale price¥8,800
Limited quantity: Sri Lankan 2mm sapphire (sapphire) 1 loose stone (with identification certificate for all stones) Discounts for multiple purchases

Limited quantity: Sri Lankan 2mm sapphire (sapphire) 1 loose stone (with identification certificate for all stones) Discounts for multiple purchases Sale price¥5,980
クッションカットのブラジル産インペリアルトパーズ1石ルース（3mm）《複数購入割引有》

Cushion cut Brazilian imperial topaz 1 stone loose (3mm)《Multiple purchase discount available》 Sale price¥5,980
グリーンランド産ルビー 1石（ハートシェイプ,4mm）

1 Ruby from Greenland (heart shape, 4mm)《Discount available for multiple purchases》 Sale price¥5,980
《9石限定》ジェムガチャ『春色カラー』💎バイカラートルマリン1石 - カラッツSTORE

Only 1 left! Gem Gacha "Spring Colors" 💎 1 Bicolor Tourmaline (Multiple Purchase Discounts Available) Sale price¥6,980
タンザナイト原石・ルース2石セット（シュガーローフカット）

Tanzanite raw stone/loose 2 stone set (sugar loaf cut)《Multiple purchase discount available》 Sale price¥6,980
Gem Gacha💎 Custom cut spinel《August birthstone》《Multiple purchase discounts available》

Gem Gacha💎 Custom cut spinel《August birthstone》《Multiple purchase discounts available》 Sale price¥5,980
Sky blue topaz 1 stone (10mm, flower cut)《Discount available for multiple purchases》

Sky blue topaz 1 stone (10mm, flower cut)《Discount available for multiple purchases》 Sale price¥5,980
Limited to 13 stones: Namibian Jeremejevite (Elemejevite) 1 stone loose stone (Multiple purchase discounts available)

Limited to 13 stones: Namibian Jeremejevite (Elemejevite) 1 stone loose stone (Multiple purchase discounts available) Sale price¥5,980
Limited to 18 stones, Russian Phenakite rough, average 2.7ct, 1 stone, multiple purchase discounts available

Limited to 18 stones, Russian Phenakite rough, average 2.7ct, 1 stone, multiple purchase discounts available Sale price¥6,980
Myanmar gray spinel, platinum spinel (2mm, round cut) 1 loose stone {Multiple purchase discount available}

Myanmar gray spinel, platinum spinel (2mm, round cut) 1 loose stone {Multiple purchase discount available} Sale price¥5,980
Limited to 14 stones: 1 Cambodian Ratanakiri Blue Zircon (4mm) Multiple purchase discounts available

Limited to 14 stones: 1 Cambodian Ratanakiri Blue Zircon (4mm) Multiple purchase discounts available Sale price¥5,980
《Limited to 10 stones》 Indian bag site 1 stone loose (average 2ct)《Multiple purchase discount available》

《Limited to 10 stones》 Indian bag site 1 stone loose (average 2ct)《Multiple purchase discount available》 Sale price¥6,980

Additional fee +6,000 yen Sale price¥6,000
Limited to 8 stones: 1 Brazilian ametrine loose stone (concave cut, average 7 carats) Multiple purchase discounts available

Limited to 8 stones: 1 Brazilian ametrine loose stone (concave cut, average 7 carats) Multiple purchase discounts available Sale price¥5,980
Limited to 25 stones: 1 Brazilian Santa Maria aquamarine (round cut, approx. 3.0 mm) Multiple purchase discounts available

Limited to 25 stones: 1 Brazilian Santa Maria aquamarine (round cut, approx. 3.0 mm) Multiple purchase discounts available Sale price¥5,980
[Jeweler's Tools] Limited Edition Chelsea Color Filter Emerald 2-Piece Set

[Jeweler's Tools] Limited Edition Chelsea Color Filter Emerald 2-Piece Set Sale price¥6,980
Limited to 15 stones! Green Oregon Sunstone rough stone from the United States 💎 Average 1.5ct [Multiple purchase discounts available]

Limited to 15 stones! Green Oregon Sunstone rough stone from the United States 💎 Average 1.5ct [Multiple purchase discounts available] Sale price¥5,980

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の取り組みと社会貢献

業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。

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.