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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 《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 1 Dragon Garnet (4.0mm, round cut)

1 Dragon Garnet (4.0mm, round cut)

Sold out Limited to 9 stones: 1 loose Mexican opal stone (multiple purchase discounts available)

Limited to 9 stones: 1 loose Mexican opal stone (multiple purchase discounts available)

Sold out Zimbabwean rough diamond (sawable) 0.054ct rough stone

Zimbabwean rough diamond (sawable) 0.054ct rough stone

Sold out Gem Gacha💎 Cat Set (1 gemstone + 2 sapphires) {Multiple purchase discounts available}

Gem Gacha💎 Cat Set (1 gemstone + 2 sapphires) {Multiple purchase discounts available}

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

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

Sold out Christmas Sale: Only one pink item available! Yuichiro Abe Goods Set [Tote Bag & Coaster]

Christmas Sale: Only one pink item available! Yuichiro Abe Goods Set [Tote Bag & Coaster]

Sold out Christmas Sale: S: 3 pieces / M: 1 piece / Kids: 1 piece - Yuichiro Abe Goods Set [T-shirt & Coaster]

Christmas Sale: S: 3 pieces / M: 1 piece / Kids: 1 piece - Yuichiro Abe Goods Set [T-shirt & 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 [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 Rose cut diamond 1.2mm x 1 stone (VS-SI class, DH color, melee diamonds) {Multiple purchase discounts available}

Rose cut diamond 1.2mm x 1 stone (VS-SI class, DH color, melee diamonds) {Multiple purchase discounts available}
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 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 コーネルピンキャッツアイ 0.791ctルース

Cornel pin cat's eye 0.791ct loose

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 Russian demantoid garnet (horsetail recognized) 2mm/0.055ct loose

Russian demantoid garnet (horsetail recognized) 2mm/0.055ct loose

Sold out メキシコ産ハイアライトオパール 0.873ctルース

Mexican Hyalite Opal 0.873ct Loose
Sold out メキシコ産ハイアライトオパール 5.2mm/0.433ctルース

[On sale at 10pm on 7/6] Mexican Hyalite Opal 5.2mm/0.433ct Loose
Sold out ブラジル産デュモルチェライトインクォーツ 1.279ctルース

Brazilian Dumortierite in Quartz 1.279ct loose stone (faceted cut)

Sold out ブラジル産デュモルチェライトインクォーツ 1.276ctルース

Brazilian Dumortierite in Quartz 1.276ct loose stone

Sold out バンカチャサファイア（スターサファイア） 1.370ctルース

Thai Black Star Sapphire (Bangkacha Sapphire) 1.370ct Loose
Sold out 【KEN氏】アンデシン 5.2mm/0.453ctルース - カラッツSTORE

Tibetan Andesine 5.2mm/0.453ct Loose Stone
Sold out 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） 0.673ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.673ct loose stone
Sold out 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） 0.339ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.339ct loose stone
Sold out 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） 0.385ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.385ct loose stone
Sold out アンフィボールインクォーツ32.070ctルース ワッペン付

Brazilian Amphibole in Quartz 32.070ct Loose Patch
Sold out 【KEN氏】トルマリンキャッツアイ 0.810ctルース - カラッツSTORE

Brazilian tourmaline cat's eye 0.810ct loose stone
Sold out ゴールドシーンサファイア 2.3mm/0.084ctルース

Kenyan gold sheen sapphire 2.3mm/0.084ct loose
Sold out ティンカーベルクォーツ（ピンクファイヤークォーツ） 3.070ctルース

Brazilian Tinkerbell Quartz (Pink Fire Quartz) 3.070ct Loose Stone
Sold out スリランカ産ヴァイオレットスピネル 0.592ctルース

Sri Lankan Violet Spinel 0.592ct Loose

Sold out インド産アンデシン・ラブラドライト（通称名 レインボームーンストーン） 0.808ctルース

Indian Andesine Labradorite (also known as Rainbow Moonstone) 0.808ct loose stone
Sold out 旧チェコスロバキア産モルダバイト 0.077ctルース

Moldavite from former Czechoslovakia 0.077ct loose stone
Sold out コンクパール 0.648ctルース

Dominican Republic Conch Pearl 0.648ct Loose
Sold out 【NOBU氏】アマゾン産グリーンオパール《コラボ》 7mm ルース - カラッツSTORE

Amazon Green Opal 7mm/0.88ct Loose

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.