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Sold out タンザナイト 0.525ctルース

Tanzanite 5mm/0.525ct loose stone
Sold out タンザナイト 0.435ctルース

Tanzanite 5mm/0.435ct loose stone
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,ピンクサファイア）《複数購入割引有》

Greenland Ice Ruby 1 stone (heart shape, 4mm, pink sapphire) {Multiple purchase discount available}

Sold out ミャンマー産トラピッチェルビー 0.231ct原石

Trapichel ruby ​​from Myanmar 0.231ct rough stone

Sold out ミャンマー産トラピッチェルビー 0.248ct原石

Myanmar trapichel ruby ​​0.248ct rough stone

Sold out ミャンマー産トラピッチェルビー 0.227ct原石

Myanmar trapichel ruby ​​0.227ct rough stone
Sold out 【KEN氏】アパタイト 0.721ctルース

Apatite 0.721ct loose stone

Sold out パイロープ・スペサルティンガーネット（カラーチェンジガーネット） 0.860ctルース

Pyrope spessartine garnet (color change garnet) 0.860ct loose

Sold out アメリカ産ペリドット 0.749ctルース

American Peridot 0.749ct Loose Stone (with Lily Pad)

Sold out Dragon Garnet 1 stone (3.0mm, round cut)《Discount available for multiple purchases》

Dragon Garnet 1 stone (3.0mm, round cut)《Discount available for multiple purchases》
Sold out スコロライト1石ルース（8mm,コンケーブカット）《複数購入割引有》

Scorolite 1 stone loose (8mm, concave cut)《Multiple purchase discount available》
Sold out Dragon Garnet 1 stone (2.0mm, round cut)《Discount available for multiple purchases》

Dragon Garnet 1 stone (2.0mm, round cut)《Discount available for multiple purchases》
Sold out Pink sapphire from Madagascar 0.216ct loose

Pink sapphire from Madagascar 0.216ct loose

Sold out Russian demantoid garnet (2mm, round cut) 1 stone (discount available for multiple purchases)

Russian demantoid garnet (2mm, round cut) 1 stone (discount available for multiple purchases)

Sold out カラーチェンジサファイア 0.351ctルース

Color change sapphire 0.351ct loose

Sold out Diamond gacha💎Fancy cut brown diamonds and FancyDarkBrown diamonds (with medium treasure chest)《Multiple purchase discount available》

Diamond gacha💎Fancy cut brown diamonds and FancyDarkBrown diamonds (with medium treasure chest)《Multiple purchase discount available》

Sold out 1 rose cut diamond (VS-SI class equivalent, 3.0mm)《Multiple purchase discount available》

1 rose cut diamond (VS-SI class equivalent, 3.0mm)《Multiple purchase discount available》

Sold out モルガナイト 0.279ctルース

Morganite 0.279ct loose

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 Madeira Citrine 1 stone 💎5mm-6mm (Madeira Citrine)《November birthstone》《Multiple purchase discount available》

Madeira Citrine 1 stone 💎5mm-6mm (Madeira Citrine)《November birthstone》《Multiple purchase discount available》

Sold out ジェムガチャ💎 アフガナイト1石 ルース（平均0.14ct）《複数購入割引有》

Gem Gacha💎 Afghanite 1 stone loose (average 0.14ct) {Multiple purchase discount available}

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 Limited to 10 stones: Pakistani oil-in-quartz with moving bubbles, single loose stone. Discounts available for multiple purchases.

Limited to 10 stones: Pakistani oil-in-quartz with moving bubbles, single loose stone. Discounts 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 1 Dragon Garnet (4.0mm, round cut)

1 Dragon Garnet (4.0mm, round cut)

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 [On sale from 10 PM on December 18th] [Christmas Sale: Pink only] Yuichiro Abe Goods Set [Tote Bag & Coaster]

[On sale from 10 PM on December 18th] [Christmas Sale: Pink only] Yuichiro Abe Goods Set [Tote Bag & Coaster]

Sold out [On sale from 10 PM on December 18th] [Christmas Sale: S: 3 pieces / M: 1 piece / Kids: 1 piece] Yuichiro Abe Merchandise Set [T-shirt & Coaster]

[On sale from 10 PM on December 18th] [Christmas Sale: S: 3 pieces / M: 1 piece / Kids: 1 piece] Yuichiro Abe Merchandise 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]

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.