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オーストラリア産プレーナイト 1.758ctルース

[10/17 22:00 Sale] Australian Prehnite 1.758ct Loose Stone Sale price¥9,800
パキスタン産スフェーン 0.396ctルース

[10/19 22:00 Sale] Pakistani Sphene 0.396ct Loose Stone Sale price¥9,800
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） 0.450ctルース

[On Sale at 10 PM on October 19th] Indian Andesine Labradorite (also known as Rainbow Moonstone) 0.450ct Loose Stone Sale price¥9,800
ゴーシェナイト 1.080ctルース

[12549595 published] Goshenite 1.080ct loose Sale price¥8,800
イエロートルマリン 0.469ctルース

[Posted in 12548907] Yellow tourmaline 0.469ct loose Sale price¥8,800
スターサファイア 1.325ctルース

[12548587 published] Star sapphire from Sri Lanka 1.325ct loose Sale price¥5,980
バイカラートルマリン 0.398ctルース

[12547847 published] Bicolor tourmaline 0.398ct loose Sale price¥8,800
ピンクトルマリン 0.605ctルース

[12547844 published] Pink tourmaline 0.605ct loose Sale price¥8,800
ブラジル産デュモルチェライトインクォーツ 0.975ctルース（ファセットカット）

[Posted 12547829] Brazilian Dumortierite in Quartz 0.975ct loose Sale price¥9,800
[On Sale 10/5 at 10 PM] [Limited to 11 Stones] Synthetic Moissanite Gacha 💎 Koshu Kiriko Plus Three Moissanite, Sange Cut, Pink, and Blue Moissanite, Loose Stones Included [Multiple Purchase Discounts Available]

[On Sale 10/5 at 10 PM] [Limited to 11 Stones] Synthetic Moissanite Gacha 💎 Koshu Kiriko Plus Three Moissanite, Sange Cut, Pink, and Blue Moissanite, Loose Stones Included [Multiple Purchase Discounts Available] Sale price¥4,980
[On sale from 10/5 at 10 PM] Limited to 9 stones: 1 loose Australian opal (faceted cut) [Multiple purchase discounts available]

[On sale from 10/5 at 10 PM] Limited to 9 stones: 1 loose Australian opal (faceted cut) [Multiple purchase discounts available] Sale price¥3,980
[On sale from 10/10 at 10 PM] [Limited to 10 stones] Brazilian Bicolor Tourmaline Loose Stone (Baguette Cut) [Multiple purchase discounts available]

[On sale from 10/10 at 10 PM] [Limited to 10 stones] Brazilian Bicolor Tourmaline Loose Stone (Baguette Cut) [Multiple purchase discounts available] Sale price¥3,980
[On Sale 10/10 at 10 PM] [Limited to 8 stones] Mexican Hyalite Opal Loose Stone (Large 4ct, Fluorescent in sunlight) [Multiple purchase discounts available]

[On Sale 10/10 at 10 PM] [Limited to 8 stones] Mexican Hyalite Opal Loose Stone (Large 4ct, Fluorescent in sunlight) [Multiple purchase discounts available] Sale price¥4,980
[Available at 10 PM on October 5th] Limited to 4 stones: Sri Lankan Rhodolite Garnet (4mm, Round Cut) - 1 loose stone [Multiple purchase discounts available]

[Available at 10 PM on October 5th] Limited to 4 stones: Sri Lankan Rhodolite Garnet (4mm, Round Cut) - 1 loose stone [Multiple purchase discounts available] Sale price¥3,980
[On sale from 10/5 at 10 PM] Limited to 9 stones. All stones come with a certificate of authenticity. One loose Zoisite stone (yellow, pink-brown, green, etc.). Discounts available for multiple purchases.

[On sale from 10/5 at 10 PM] Limited to 9 stones. All stones come with a certificate of authenticity. One loose Zoisite stone (yellow, pink-brown, green, etc.). Discounts available for multiple purchases. Sale price¥6,980
Aquamarine 1.574ct loose stone

Aquamarine 1.574ct loose stone Sale price¥9,800
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/0.497ctルース

Mali Garnet (Grossular/Andradite Garnet) 4.5mm/0.497ct Loose Sale price¥8,800
UVタイプミントガーネット 0.521ctルース

UV type mint garnet 0.521ct loose Sale price¥3,980
ナミビア産ジェレメジェバイト 0.034ctルース

Jeremejevite from Namibia 0.034ct loose Sale price¥9,800
タンザニア産バイカラータンザナイト 1.165ct原石

Bicolor tanzanite 1.165ct rough stone from Tanzania Sale price¥7,980
タンザニア産バイカラータンザナイト 1.121ct原石

Bicolor tanzanite 1.121ct rough stone from Tanzania Sale price¥6,980
タンザニア産バイカラータンザナイト 0.492ct原石

Bicolor tanzanite 0.492ct raw stone from Tanzania Sale price¥6,980
タンザニア産ピンクゾイサイト 3.206ct原石

Pink zoisite 3.206ct rough stone from Tanzania Sale price¥7,980
バイカラートルマリン 0.418ctルース

Bicolor tourmaline 0.418ct loose Sale price¥3,980
合成ルチル 2.031ctルース

Synthetic rutile 2.031ct loose Sale price¥9,800
ブラジル産レインボースキャポライト 0.516ctルース

Brazilian rainbow scapolite 6mm/0.516ct loose Sale price¥2,980
ブラジル産メデューサクォーツ（パライバクォーツ） 1.181ctルース

Brazilian Medusa Quartz (Paraiba Quartz) 1.181ct loose Sale price¥3,980
コンゴ産ヘミモルファイト 0.432ctルース

Hemimorphite from Congo 0.432ct loose Sale price¥6,980
オーストラリア産ボルダーオパール 0.874ctルース

Australian boulder opal 0.874ct loose Sale price¥3,980
オーストラリア産ボルダーオパール 1.156ctルース

Australian boulder opal 1.156ct loose Sale price¥3,980
オーストラリア産ボルダーオパール 1.173ctルース

Australian boulder opal 1.173ct loose Sale price¥5,980
オーストラリア産ボルダーオパール 0.982ctルース

Australian boulder opal 0.982ct loose Sale price¥6,980
インド産ムーンストーン 1.046ctルース

[10/11 22:00 Sale] Indian Moonstone 1.046ct Loose Sale price¥9,800
インド産ムーンストーン 9.3mm/2.693ctルース

[10/10 22:00 Sale] Indian Moonstone 9.3mm/2.693ct Loose Sale price¥9,800
カンボジア産カラーレスジルコン 0.630ctルース

[10/10 22:00 Sale] Cambodian Colorless Zircon 0.630ct Loose Sale price¥8,800
カンボジア産カラーレスジルコン 0.905ctルース

[10/10 22:00 Sale] Cambodian Colorless Zircon 0.905ct Loose Sale price¥9,800
ブラジル産ペタライト 0.725ctルース

[10/10 22:00 Sale] Brazilian Petalite 0.725ct Loose Stone Sale price¥4,980
ブラジル産ペタライト 1.197ctルース

[10/10 22:00 Sale] Brazilian Petalite 1.197ct Loose Stone Sale price¥7,980
タンザニア産パープルサファイア 0.355ctルース

[10/10 22:00 Sale] Tanzanian Purple Sapphire 0.355ct Loose Sale price¥9,800
オーストラリア産オパール 0.374ctルース

[10/10 22:00 Sale] Australian Opal 0.374ct Loose Sale price¥6,980
タンザニア産サンストーン（イリュージョンサンストーン） 0.627ctルース

[On Sale 10/10 at 10 PM] Tanzanian Sunstone (Illusion Sunstone) 0.627ct Loose Stone Sale price¥9,800
ブラジル産ダルメシアンクォーツ 9.2mm/1.711ctルース

[10/10 22:00 Sale] Brazilian Dalmatian Quartz 9.2mm/1.711ct Loose Stone Sale price¥9,800
メキシコ産カンテラオパール 1.120ctルース

[10/10 22:00 Sale] Mexican Cantera Opal 1.120ct Loose Sale price¥8,800
アフガニスタン産ハックマナイト 0.134ctルース

[On Sale at 10pm on October 8th] Afghanistan Hackmanite 0.134ct Loose Stone Sale price¥6,980
アフガニスタン産ハックマナイト 0.121ctルース

[On Sale at 10pm on October 8th] Afghanistan Hackmanite 0.121ct Loose Stone Sale price¥6,980
ブラジル産ラベンダークォーツ（スコロライト） 0.797ctルース

[On Sale at 10 PM on October 8th] Brazilian Lavender Quartz (Scorolite) 0.797ct Loose Stone Sale price¥7,980
ブラジル産ピンクトルマリン 0.385ctルース

[On Sale at 10 PM on October 8th] Brazilian Pink Tourmaline 0.385ct Loose Stone Sale price¥7,980
マダガスカル産グリーンアパタイト 0.597ctルース

[On Sale at 10 PM on October 8th] 0.597ct Green Apatite Loose Stone from Madagascar Sale price¥6,980

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.