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非加熱ブラジル産パライバトルマリン 0.110ctルース

《Yurakucho Marui 2024112 Takeout》Unheated Brazilian Paraiba Tourmaline 0.110ct Loose Stone AIGS Sale price¥258,000
《Yurakucho Marui 2024112 takeout》Brazilian Andalusite 2.013ct loose stone

《Yurakucho Marui 2024112 takeout》Brazilian Andalusite 2.013ct loose stone Sale price¥39,800
Brazilian Alexandrite 0.066ct loose stone

Brazilian Alexandrite 0.066ct loose stone Sale price¥12,800
Brazilian Alexandrite 0.094ct Loose Stone (Silky)

Brazilian Alexandrite 0.094ct Loose Stone (Silky) Sale price¥18,800
エチオピア産ハニカムオパール 3.566ctルース

Ethiopian honeycomb opal 3.566ct loose stone Sale price¥46,800
メキシコ産オパール 1.803ctルース

Mexican Opal 9.6mm/1.803ct Loose (Contralus Opal) Sale price¥69,800
エチオピア産オパール 0.961ctルース

Ethiopian Opal 0.961ct Loose (Sphere) Sale price¥7,980
Mongolian bicolor andesine 5.1mm/0.509ct loose stone (color change andesine)

Mongolian bicolor andesine 5.1mm/0.509ct loose stone (color change andesine) Sale price¥6,980
タンザニア産マンダリンガーネット 0.449ctルース

Tanzanian Mandarin Garnet 0.449ct Loose Stone Sale price¥39,800
タンザニア産マンダリンガーネット 0.361ctルース

Tanzanian Mandarin Garnet 0.361ct Loose Stone Sale price¥14,800
ローズクォーツ 7.293ctルース

[Koshu Precious Stones Plusthree] Rose Quartz 7.293ct Loose Sale price¥29,800
シトリン 5.121ctルース

[Koshu Precious Stones plusthree] Citrine 5.121ct Loose Sale price¥39,800
[Koshu Precious Stones Plusthree] Tibetan Andesine 7.873ct [Collaboration] Loose Stone (Color Change Andesine)

[Koshu Precious Stones Plusthree] Tibetan Andesine 7.873ct [Collaboration] Loose Stone (Color Change Andesine) Sale price¥39,800
ウォーターメロントルマリン 4.731ctルース

[Koshu Precious Stones plusthree] Watermelon Tourmaline 4.731ct Loose Stone Sale price¥39,800
ラベンダークォーツ（スコロライト） 1.761ctルース

[Koshu Precious Stones Plusthree] Lavender Quartz (Scorolite) 1.761ct Loose Stone Sale price¥39,800
モザンビーク産非加熱ルビー 0.135ctルース

Unheated Mozambique ruby 2.7mm/0.135ct loose stone Sale price¥19,800
《Yurakucho Marui 2024112 takeout》Afghanite 0.617ct loose stone from Afghanistan

《Yurakucho Marui 2024112 takeout》Afghanite 0.617ct loose stone from Afghanistan Sale price¥69,800
Brazilian Alexandrite 3.1mm/0.142ct loose stone (silky type)

Brazilian Alexandrite 3.1mm/0.142ct loose stone (silky type) Sale price¥35,800
コロンビア産パイライト・雲母インエメラルド 0.815ctルース

Colombian pyrite-mica emerald 0.815ct loose stone Sale price¥39,800
クリソベリルキャッツアイ 1.088ctルース

Chrysoberyl cat's eye 1.088ct loose stone Sale price¥8,800
Benitoite 1.8mm/0.025ct loose stone (colorless benitoite)

Benitoite 1.8mm/0.025ct loose stone (colorless benitoite) Sale price¥12,800
Benitoite 1.8mm/0.025ct loose stone (colorless benitoite)

Benitoite 1.8mm/0.025ct loose stone (colorless benitoite) Sale price¥15,800
Benitoite 1.8mm/0.028ct loose stone (colorless benitoite)

Benitoite 1.8mm/0.028ct loose stone (colorless benitoite) Sale price¥14,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 4.5mm/0.369ct Loose Stone

Madagascar Bekiri Blue Garnet (Color Change Garnet) 4.5mm/0.369ct Loose Stone Sale price¥29,800
ナイジェリア産モルガナイト 0.527ctルース

Nigerian Morganite 0.527ct loose stone Sale price¥8,800
ナイジェリア産モルガナイト 0.725ctルース

Nigerian Morganite 0.725ct loose stone Sale price¥12,800
クリストバライトインクォーツ 2.417ctルース

Cristobalite in Quartz 2.417ct Loose Stone Sale price¥12,800
クリストバライトインクォーツ 1.660ctルース

Cristobalite in Quartz 1.660ct Loose Sale price¥9,800
Pakistani Oil in Quartz 1.337ct Loose Stone (Moving Bubbles)

Pakistani Oil in Quartz 1.337ct Loose Stone (Moving Bubbles) Sale price¥19,800
Pakistani Oil in Quartz 1.118ct Loose Stone (Moving Bubbles)

Pakistani Oil in Quartz 1.118ct Loose Stone (Moving Bubbles) Sale price¥25,800
ブラジル産アクアマリン 1.071ctルース

[Mr. KEN] Brazilian aquamarine 1.071ct loose stone (phantom cut) Sale price¥9,800
ブラジル産アクアマリン 0.874ctルース

[Mr. KEN] Brazilian aquamarine 0.874ct loose stone (phantom cut) Sale price¥8,800
Limited to 17 stones: 1 loose Afghanite stone from Afghanistan. Discounts available for multiple purchases.

Limited to 17 stones: 1 loose Afghanite stone from Afghanistan. Discounts available for multiple purchases. Sale price¥2,980
Limited to 20 stones: American Anthill Garnet (Chrome Pyrope Garnet, Round Cut 4.0mm) 1 loose stone (Multiple purchase discounts available)

Limited to 20 stones: American Anthill Garnet (Chrome Pyrope Garnet, Round Cut 4.0mm) 1 loose stone (Multiple purchase discounts available) Sale price¥5,980
[Limited to 9 stones] American Anthill Garnet (Chrome Pyrope Garnet, Trilliant Cut 4.0mm) 1 loose stone [Multiple purchase discount available]

[Limited to 9 stones] American Anthill Garnet (Chrome Pyrope Garnet, Trilliant Cut 4.0mm) 1 loose stone [Multiple purchase discount available] Sale price¥5,980
Diamond (Old Mine Cut) 1 Loose Stone {Multiple Purchase Discounts Available}

Diamond (Old Mine Cut) 1 Loose Stone {Multiple Purchase Discounts Available} Sale price¥4,980
Limited to 10 stones: Madagascar Andesine Labradorite (Pink Schiller) 1 loose stone (Multiple purchase discounts available)

Limited to 10 stones: Madagascar Andesine Labradorite (Pink Schiller) 1 loose stone (Multiple purchase discounts available) Sale price¥6,980
Brazilian rutilated quartz (rutile/rutile quartz (rutilated quartz)) 1 loose stone (6.0-6.5mm, for beginners) {Multiple purchase discounts available}

Brazilian rutilated quartz (rutile/rutile quartz (rutilated quartz)) 1 loose stone (6.0-6.5mm, for beginners) {Multiple purchase discounts available} Sale price¥2,580
Brazilian rutilated quartz (rutile/rutilated quartz (rutilated quartz)) 1 loose stone (3.0-3.5mm, for beginners) {Multiple purchase discounts available}

Brazilian rutilated quartz (rutile/rutilated quartz (rutilated quartz)) 1 loose stone (3.0-3.5mm, for beginners) {Multiple purchase discounts available} Sale price¥1,580
Limited to 5 stones: 1 loose labradorite stone (20 x 15 mm, for beginners) Multiple purchase discounts available

Limited to 5 stones: 1 loose labradorite stone (20 x 15 mm, for beginners) Multiple purchase discounts available Sale price¥3,980
ベニトアイト 0.154ctルース

《Yurakucho Marui 2024112 takeout》Benitoite 0.154ct loose stone Sale price¥118,000
ベニトアイト 0.352ctルース

《Yurakucho Marui 2024112 takeout》Benitoite 0.352ct loose stone Sale price¥298,000
ベニトアイト 0.152ctルース

{Yurakucho Marui 2024112 takeout} Bicolor Benitoite 0.152ct loose stone Sale price¥148,000
レインボークォーツ（イリデッセンスクォーツ） 0.256ctルース

"Yurakucho Marui 2024112" Rainbow Quartz (Iridescent Quartz) 0.256ct Loose Stone, Japan-Germany Sale price¥98,000
ノンオイルエメラルド 1.370ctルース

《Yurakucho Marui 2024112 takeout》Non-oil emerald 1.370ct loose GIA Sale price¥1,580,000
ラボグロウンダイヤモンド（合成ダイヤモンド） 0.290ctルース(FANCY VIVID PINK, VS-2)

《Yurakucho Marui 2024112 takeout》Lab-grown pink diamond (synthetic pink diamond) 0.290ct loose (FANCY VIVID PINK, VS-2) Sale price¥59,800
Brazilian Paraiba Tourmaline 0.405ct loose stone (CuO2.7% CuO2.2%) GIA

Brazilian Paraiba Tourmaline 0.405ct loose stone (CuO2.7% CuO2.2%) GIA Sale price¥198,000
バイカラーシトリン 8.362ctルース

Bicolor Citrine 8.362ct Loose Sale price¥8,800

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.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.

KARATZ・Five Commitments