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Sold out マリ共和国マリガーネット（グロッシュラー/アンドラダイト・ガーネット） 4.5mm/0.498ctルース

Mali Garnet (Grossular/Andradite Garnet) 4.5mm/0.498ct Loose

Sold out ケニア産イリュージョンクロムトルマリン 0.508ctルース

Illusion chrome tourmaline from Kenya 0.508ct loose

Sold out 1 stone loose quartz in oil from Pakistan《Discount available for multiple purchases》

1 stone loose quartz in oil from Pakistan《Discount available for multiple purchases》

Sold out 《限定12石》ブラジル産ラズライト（天藍石）1石ルース（初心者向け）《複数購入割引有》

1 stone loose Brazilian lazurite (for beginners)

Sold out スピネル 3石セット0.328ctルース

Spinel 3 stone set 0.328ct loose

Sold out パキスタン産オイルインクォーツ 0.629ct原石（双子・気泡が動くタイプ）

Oil-in-quartz 0.629ct rough stone from Pakistan (twins, moving bubble type)

Sold out ラピスラズリ 171.543ctオブジェ

Lapis lazuli 28mm/171.543ct loose

Sold out 【5/20 22時販売】ユーパーライト 1石 （平均35ct）原石《複数購入割引有》 - カラッツSTORE

Euparite 1 stone (average 35ct) raw stone (discount available for multiple purchases)

Sold out アイスブルーカラーの合成モアッサナイト1石ルース（5mm,アイスブルー）

Ice blue color synthetic moissanite 1 stone loose (5mm, ice blue)《Multiple purchase discount available》

Sold out Gem Gacha💎 Trapiche Diamond (Sliced ​​Diamond) 1 stone {Multiple purchase discount available}

Gem Gacha💎 Trapiche Diamond (Sliced ​​Diamond) 1 stone {Multiple purchase discount available}

Sold out 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） 2.3mm/0.067ctルース

Bekily Blue Garnet from Madagascar (color change garnet) 2.3mm/0.067ct loose

Sold out 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） 2.3mm/0.065ctルース

Bekily Blue Garnet from Madagascar (color change garnet) 2.3mm/0.065ct loose

Sold out 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） 2.6mm/0.090ctルース

Bekily Blue Garnet from Madagascar (color change garnet) 2.6mm/0.090ct loose

Sold out Diamond 2mm (VS class, DG color, round cut, melee diamond 2.0mm) 1 loose stone {Multiple purchase discounts available}

Diamond 2mm (VS class, DG color, round cut, melee diamond 2.0mm) 1 loose stone {Multiple purchase discounts available}
Sold out 1 Brazilian Euclase rough stone (discount available for multiple purchases)

1 Brazilian Euclase rough stone (discount available for multiple purchases)

Sold out 《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

Gem Gacha "Spring Colors" 💎 1 Bicolor Tourmaline (Multiple Purchase Discounts Available)

Sold out 《残り4石》ジェムガチャ💎ジンバブエ産ソーヤブルダイヤモンド1石（正八面体,VS~SIクラス相当） - カラッツSTORE

Gem Gacha💎1 Zimbabwe sawable diamond (regular octahedron, VS~SI class equivalent)

Sold out カラーチェンジアンデシン1石（5×3mm,オーバルカット）《複数購入割引有》

Color change Andesine 1 stone (5 x 3mm, oval cut)《Discount available for multiple purchases》

Sold out Dragon Garnet x 1 (3.5mm, round cut) {Multiple purchase discount available}

Dragon Garnet x 1 (3.5mm, round cut) {Multiple purchase discount available}
1 dragon garnet stone (4.5mm, round cut)

1 dragon garnet stone (4.5mm, round cut) Sale price¥5,980
Sold out Zimbabwean rough diamond (sawable) 0.054ct rough stone

Zimbabwean rough diamond (sawable) 0.054ct rough stone

Sold out Yuichiro Abe goods set [clutch bag & acrylic key chain]

Yuichiro Abe goods set [clutch bag & acrylic key chain]

Sold out Only 3 left! Yuichiro Abe Goods Set [Tote Bag & Coaster]

Only 3 left! Yuichiro Abe Goods Set [Tote Bag & Coaster]

Sold out 安部祐一朗氏グッズセット【キャンバス＆アクルルキーホルダー＆オレゴンサンストーンの宝石】

Yuichiro Abe goods set [canvas & acrylic key chain & Oregon sunstone jewelry]

Sold out 安部祐一朗氏グッズセット【マグカップ＆コンパクトミラー＆オレゴンサンストーンの宝石】

Yuichiro Abe goods set [General purpose case & notebook & postcard autographed & Oregon sunstone jewelry]

Sold out Yuichiro Abe goods set [Kids T-shirt 130cm, notebook and coaster]

Yuichiro Abe goods set [Kids T-shirt 130cm, notebook and coaster]

Sold out Yuichiro Abe goods set [sticker & waterproof smartphone case]

Yuichiro Abe goods set [sticker & waterproof smartphone case]

Sold out Gem Gacha💎1 special fluorescent diamond (VS-SI class equivalent, 2.0mm)

Gem Gacha💎1 special fluorescent diamond (VS-SI class equivalent, 2.0mm)

Sold out Yuichiro Abe goods set [gadget case & compact mirror]

Yuichiro Abe goods set [gadget case & compact mirror]

Sold out Yuichiro Abe Goods Set [Mug & Compact Mirror]

Yuichiro Abe Goods Set [Mug & Compact Mirror]

Sold out 1 loose sapphire from Ratnapura, Sri Lanka (3.0mm-4.0mm, trilliant cut)《Multiple purchase discount available》

1 loose sapphire from Ratnapura, Sri Lanka (3.0mm-4.0mm, trilliant cut)《Multiple purchase discount available》

Sold out Brazilian Paraiba tourmaline (Batalha) 1 stone 1.3-1.4mm

Brazilian Paraiba tourmaline (Batalha) 1 stone 1.3-1.4mm

Sold out 1 stone of Hokkaido rhodochrosite (5 x 3 mm, pear-shaped cut)《Discount available for multiple purchases》

1 stone of Hokkaido rhodochrosite (5 x 3 mm, pear-shaped cut)《Discount available for multiple purchases》

Sold out ライモナイトインクォーツ（オーロラクォーツ） 1石 ルース

Lymonite in Quartz (Aurora Quartz) 1 stone loose

Sold out グリーンランド産ルビー 1石（ラウンドカット,2mm）

1 Ruby from Greenland (round cut, 2mm) with certificate

Sold out グリーンランド産アイスルビー 1石（ハートシェイプ,4mm）

Ice ruby ​​from Greenland 1 stone (heart shape, 4mm) Comes with original pouch

Sold out Yuichiro Abe goods set [notes & coasters & postcards]

Yuichiro Abe goods set [notes & coasters & postcards]

Sold out オパール0.584ctルース

Opal 0.584ct loose

Sold out シーブルーカルセドニー 5.627ctルース

Sea blue chalcedony 5.627ct loose

Sold out ブラッドショットアイオライトサンストーン 1.150ctルース

Bloodshot Iolite Sunstone 1.150ct Loose

Sold out バイカラートルマリン 2.245ctルース

Bicolor tourmaline 2.245ct loose

Sold out バイカラートルマリン 2.214ctルース

Bicolor tourmaline 2.214ct loose

Sold out ローレントーマサイト0.092ctルース

Lauren Thomasite 0.092ct loose

Sold out 1 Brazilian Paraiba tourmaline stone (cabochon cut, average 0.25 ct)

1 Brazilian Paraiba tourmaline stone (cabochon cut, average 0.25 ct)

Sold out ブラックダイヤモンド 0.316ctルース

Black diamond 0.316ct loose

Sold out グリーンランド産ルビー0.365ctルース 証明書付

Ruby from Greenland 0.365ct loose with certificate

Sold out グリーンランド産ルビー0.337ctルース証明書付

Ruby from Greenland 0.337ct Ruth certificate included

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.