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アベンチュリンアクアマリンキャッツアイ 1.421ctルース

Aventurine aquamarine cat's eye 1.421ct loose Sale price¥4,980
Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for beginners: Inca Rose/Fluorite 2 stone set)

Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for beginners: Inca Rose/Fluorite 2 stone set) Sale price¥2,980
シトリン 0.833ctルース

Citrine 0.833ct loose stone Sale price¥3,980
シトリン 1.216ctルース

Brazilian citrine 1.216ct loose stone Sale price¥4,980
ナイジェリア産モルガナイト 1.119ctルース

Morganite from Nigeria 1.119ct loose Sale price¥4,980
ナイジェリア産モルガナイト 0.889ctルース

Morganite from Nigeria 0.889ct loose Sale price¥4,980
タンザニア産カイヤナイト 0.856ctルース

Tanzania Kyanite 0.856ct loose stone Sale price¥4,980
Chrome tourmaline 0.300ct loose stone

Chrome tourmaline 0.300ct loose stone Sale price¥3,980
ジルコン 0.416ctルース

Zircon 0.416ct loose Sale price¥4,980
ジルコン 0.194ctルース

Zircon 0.194ct loose Sale price¥2,980
宝石ガチャ💎ハートシェイプのトルマリン1石💎4mm《複数購入割引有》

Gem Gacha💎Heart-shaped tourmaline 1 stone💎4mm《Multiple purchase discount available》 Sale price¥2,980
宝石ガチャ💎プリンセスカットのトルマリン1石💎 3mm《複数購入割引有》

Gem Gacha💎Princess cut tourmaline 1 stone💎 3mm《Multiple purchase discount available》 Sale price¥2,980
宝石ガチャ💎クッションカットのトルマリン1石💎 4mm《複数購入割引有》

Gem Gacha💎1 cushion cut tourmaline stone💎 4mm《Multiple purchase discount available》 Sale price¥2,980
クォーツ 96.732ctルース（爆裂水晶）

Quartz 96.732ct loose (explosion crystal) Sale price¥4,980
ブラジル産ルチルレイテッドクォーツ1石ルース（6mm）《複数購入割引有》

Brazilian rutilated quartz (rutilated quartz) 1 loose stone (6mm) {Multiple purchase discounts available} Sale price¥1,500
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》 Sale price¥1,500
ミャンマー産トラピッチェルビー 0.179ct原石

Myanmar trapichel ruby ​​0.179ct rough stone Sale price¥3,980
ミャンマー産トラピッチェルビー 0.152ct原石

Myanmar trapichel ruby ​​0.152ct rough stone Sale price¥4,980
ミャンマー産トラピッチェルビー 0.202ct原石

Trapichel ruby ​​from Myanmar 0.202ct rough stone Sale price¥3,980
ミャンマー産トラピッチェルビー 0.261ct原石

Myanmar trapichel ruby ​​0.261ct rough stone Sale price¥4,980
スリランカ産フェルスパー 1.478ctルース

Felspar 1.478ct loose from Sri Lanka Sale price¥3,980

Additional charge for resizing: 2,500 yen Sale price¥2,500
ブラジル産カラーチェンジフローライト1石ルース（6mm,ラウンドカット）《複数購入割引有》

Color change fluorite from Brazil 1 stone loose (6mm, round cut)《Multiple purchase discount available》 Sale price¥2,580
【サンジェ氏】アンダリュサイト 0.192ctルース

Andalusite 0.192ct loose stone Sale price¥4,980
ルチルクォーツ1石ルース（12mm）《複数購入割引有》

Rutilated quartz 1 stone loose (12mm)《Multiple purchase discount available》 Sale price¥1,980
ラブラドライト1石ルース（12×16mm）《複数購入割引有》

Labradorite 1 stone loose (12 x 16mm)《Multiple purchase discount available》 Sale price¥2,580
925 Silver Necklace Adjuster Parts 5cm Necklace Extension Chain

925 Silver Necklace Adjuster Parts 5cm Necklace Extension Chain Sale price¥1,280
1 loose Australian opal (heart shape, 4 x 4mm)《Discount available for multiple purchases》

1 loose Australian opal (heart shape, 4 x 4mm)《Discount available for multiple purchases》 Sale price¥3,980
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》 Sale price¥2,980
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 Sale price¥3,980
【サンジェ氏】ブルートパーズ 5.1mm/0.511ctルース

Blue Topaz 5.1mm/0.511ct Loose Sale price¥4,980
【サンジェ氏】ブルートパーズ 4.5mm/0.422ctルース

Blue Topaz 4.5mm/0.422ct Loose Sale price¥3,980
プレーナイト 5.3mm/0.469ctルース

Prehnite 5.3mm/0.469ct loose Sale price¥4,980
オレンジジルコン 0.453ctルース

Orange zircon 0.453ct loose Sale price¥4,980
【サンジェ氏】ジルコン 0.414ctルース

Zircon 0.414ct loose Sale price¥4,980
カラーチェンジサファイア 0.283ctルース

Color change sapphire 0.283ct loose Sale price¥4,980
Malachite 2 stone set loose (6 x 8mm, pear shape cut)《Multiple purchase discount available》

Malachite 2 stone set loose (6 x 8mm, pear shape cut)《Multiple purchase discount available》 Sale price¥1,000
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》 Sale price¥1,000
Maushitsit (Mawsissi) from Myanmar 1 stone loose (12mm)《Multiple purchase discount available》

Maushitsit (Mawsissi) from Myanmar 1 stone loose (12mm)《Multiple purchase discount available》 Sale price¥2,980
カラーチェンジサファイア 0.351ctルース

Color change sapphire 0.351ct loose Sale price¥4,980
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
ブラジル産レピドクロサイトインクォーツ 2.225ctルース

Brazilian lepidocrocite in quartz 2.225ct loose Sale price¥4,980
ブラジル産レピドクロサイトインクォーツ 1.621ctルース

Brazilian lepidocrocite in quartz 1.621ct loose Sale price¥3,980
【一律1000円】アメリカ産・ハーキマーダイヤモンド（ロッククリスタル）1石 原石

[Flat rate 1000 yen] 1 American Herkimer diamond (rock crystal) rough stone (discount available for multiple purchases) Sale price¥1,000
アゲート 34.143ctルース

Agate 34.143ct Ruth (Druzy Agate) Sale price¥3,980
アゲート 56.919ctルース

Agate 56.919ct Ruth (Druzy Agate) Sale price¥3,980
アゲート 35.084ctルース

Agate 35.084ct Ruth (Druzy Agate) Sale price¥3,980
アゲート 64.882ctルース

Agate 64.882ct Ruth (Druzy Agate) Sale price¥4,980

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'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.