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Sold out グリーントルマリン 0.271ctルース

Green tourmaline 0.271ct loose
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 タンザニア産イリュージョンサンストーン1石ルース（6mm）《複数購入割引有》

Illusion sunstone from Tanzania 1 stone loose (6mm)《Multiple purchase discount available》

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 【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 2-Stone Set (2.0mm, Round Cut) "Multiple Purchase Discount Available"

Dragon Garnet 2-Stone Set (2.0mm, Round Cut) "Multiple Purchase Discount Available"
Sold out Pink sapphire from Madagascar 0.216ct loose

Pink sapphire from Madagascar 0.216ct loose

Sold out 奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 2.623ctルース

Rainbow garnet (andradite garnet) 2.623ct loose from Tenkawa Village, Nara Prefecture

Sold out バイカラートルマリン 0.397ctルース

Bicolor tourmaline 0.397ct 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 Malachite 2-Stone Set Loose (6×8mm, Pear-Shape Cut) 《Multi-buy discount available》

Malachite 2-Stone Set Loose (6×8mm, Pear-Shape Cut) 《Multi-buy discount available》

Sold out Malachite 2 stone set loose (6mm, cushion cut)《Discount available for multiple purchases》

Malachite 2 stone set loose (6mm, cushion cut)《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 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 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 合成ルチル 6mm/1.061ctルース

Synthetic rutile 6mm/1.061ct 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 【5/20 22時販売】ユーパーライト 1石 （平均28ct）原石《複数購入割引有》 - カラッツSTORE

Yooperlite, 1 stone, approx. 20ct–25ct (Michigan, USA) 《Multi-buy discount》
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 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 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 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》

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.