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バイカラートルマリン 0.572ctルース（ローズカット）

[On sale at 22:00 on 6/23] Brazilian bicolor tourmaline 0.572ct loose stone (rose cut) Sale price¥14,800
[On sale at 10pm on 6/23] Brazilian bicolor tourmaline 0.901ct loose stone (rose cut)

[On sale at 10pm on 6/23] Brazilian bicolor tourmaline 0.901ct loose stone (rose cut) Sale price¥12,800
【ダンデライオンカット】YAG（イットリウムアルミニウムガーネット） 9mm/4.121ct《コラボ》ルース ワッペン付

[On sale from 10pm on 6/23] [Dandelion cut] YAG (Yttrium Aluminum Garnet) 9mm/4.121ct loose patch Sale price¥39,800
スリランカ産エカナイト 0.830ctルース

[On sale at 22:00 on 6/23] Sri Lankan ekanite 0.830ct loose stone Sale price¥18,800
メキシコ産ファイアーアゲート 1.229ctルース

[On sale from 10pm on 6/23] Mexican Fire Agate 1.229ct Loose Stone (Cabochon Cut) Sale price¥12,800
コンゴ産マラカイト 34.667ctルース ワッペン付

[On sale from 10pm on 6/22] Congo Malachite 34.667ct Loose Stone Patch Sale price¥6,980
バイカラートルマリン 0.763ctルース（ローズカット）

[On sale at 10pm on 6/22] Brazilian bicolor tourmaline 0.763ct loose stone (rose cut) Sale price¥12,800
[On sale at 10pm on 6/22] Mozambique pink spinel 0.670ct loose stone

[On sale at 10pm on 6/22] Mozambique pink spinel 0.670ct loose stone Sale price¥18,800
モザンビーク産ピンクスピネル 0.520ctルース

[On sale at 10pm on 6/22] Mozambique pink spinel 0.520ct loose stone (checkerboard cut) Sale price¥15,800
【12539372掲載】スリランカ産ジルコンキャッツアイ 2.087ctルース

[On sale at 22:00 on 6/22] Sri Lankan Zircon Cat's Eye 2.087ct Loose Stone, Japan-Germany Sale price¥39,800
マダガスカル産ペツォッタイト 0.257ctルース

[On sale at 10pm on 6/22] Madagascar Pezzottaite 0.257ct loose stone Sale price¥15,800
[On sale at 10pm on 6/22] {Limited to 8 stones} 1 loose star sapphire from Sri Lanka (5mm, round cabochon cut) {Multiple purchase discounts available}

[On sale at 10pm on 6/22] {Limited to 8 stones} 1 loose star sapphire from Sri Lanka (5mm, round cabochon cut) {Multiple purchase discounts available} Sale price¥7,980
[On sale at 10pm on 6/22] {Only 2 left} Shinjuku Annex Opening Commemorative Project - Sri Lankan Star Sapphire 1 Loose Stone {Multiple Purchase Discounts Available}

[On sale at 10pm on 6/22] {Only 2 left} Shinjuku Annex Opening Commemorative Project - Sri Lankan Star Sapphire 1 Loose Stone {Multiple Purchase Discounts Available} Sale price¥2,980
ナミビア産ジェレメジェバイト 0.066ctルース

[On sale at 22:00 on 6/25] Namibian Jeremejevite 0.066ct loose stone with certificate of authenticity Sale price¥18,800
ナミビア産ジェレメジェバイト 0.136ctルース

[On sale at 22:00 on 6/25] Namibian Jeremejevite 0.136ct loose stone with certificate of authenticity Sale price¥35,800
ナミビア産ジェレメジェバイト 0.147ctルース

[On sale at 10pm on 6/22] Namibian Jeremejevite 0.147ct loose stone with certificate Sale price¥29,800
パキスタン産アキシナイト（ブルーティント） 0.623ctルース

[On sale at 22:00 on 6/25] Pakistani axinite (blue tint) 0.623ct loose stone Sale price¥12,800
タンザニア産ドラゴンガーネット 0.713ctルース

[On sale at 22:00 on 6/25] Tanzanian dragon garnet 0.713ct loose stone Sale price¥15,800
モザンビーク産ロードライトガーネット 0.520ctルース

[On sale at 10pm on 6/22] Mozambique Rhodolite Garnet 0.520ct Loose Stone, Japan-Germany Scale Sale price¥9,800
モザンビーク産ロードライトガーネット 0.511ctルース

[On sale at 22:00 on 6/25] Mozambique Rhodolite Garnet 0.511ct Loose Stone with Certificate of Authenticity Sale price¥8,800
コロンビア産ユークレース 0.817ctルース

[On sale at 22:00 on 6/25] Colombian Euclase 0.817ct loose stone Sale price¥29,800
コロンビア産ユークレース 1.344ctルース

[On sale at 22:00 on 6/25] Colombian Euclase 1.344ct loose stone Sale price¥26,800
コロンビア産ユークレース 0.735ctルース

[On sale at 10pm on 6/22] Colombian Euclase 0.735ct loose stone Sale price¥14,800
コロンビア産ユークレース 1.776ctルース

[On sale at 22:00 on 6/23] Colombian Euclase 1.776ct loose stone Sale price¥15,800
アパタイトキャッツアイ 1.644ctルース

[On sale at 22:00 on 6/23] Madagascar Apatite Cat's Eye 1.644ct Loose Stone Sale price¥8,800
アパタイトキャッツアイ 2.496ctルース

[On sale at 22:00 on 6/24] Madagascar Apatite Cat's Eye 2.496ct Loose Stone Sale price¥9,800
アパタイトキャッツアイ 0.909ctルース

[On sale at 22:00 on 6/24] Madagascar Apatite Cat's Eye 0.909ct Loose Stone Sale price¥6,980
モルガナイト 0.846ctルース

[On sale at 22:00 on 6/24] Brazilian Morganite 0.846ct loose stone Sale price¥12,800
モルガナイト 0.405ctルース

[On sale at 22:00 on 6/24] Brazilian Morganite 0.405ct loose stone Sale price¥7,980
モルガナイト 2.183ctルース

[On sale at 10pm on 6/22] Brazilian Morganite 2.183ct loose stone Sale price¥29,800
ブラジル産スイスブルートパーズ 0.975ctルース

[On sale at 22:00 on 6/23] Brazilian Swiss Blue Topaz 0.975ct Loose Sale price¥8,800
ブラジル産スイスブルートパーズ 0.957ctルース

[On sale at 10pm on 6/22] Brazilian Swiss Blue Topaz 0.957ct Loose Sale price¥8,800
ブラジル産スイスブルートパーズ 0.889ctルース

[On sale at 22:00 on 6/24] Brazilian Swiss Blue Topaz 0.889ct Loose Sale price¥8,800
ブラジル産スイスブルートパーズ 1.193ctルース

[On sale at 10pm on 6/22] Brazilian Swiss Blue Topaz 1.193ct Loose Sale price¥9,800
ブラジル産スイスブルートパーズ 1.043ctルース

[On sale at 10pm on 6/22] Brazilian Swiss Blue Topaz 1.043ct Loose Sale price¥8,800
ブラジル産ブルートパーズ 1.355ctルース

[On sale at 22:00 on 6/23] Brazilian Blue Topaz 1.355ct Loose Sale price¥8,800
ブラジル産ブルートパーズ 0.766ctルース

[On sale at 10pm on 6/22] Brazilian Blue Topaz 0.766ct Loose Sale price¥6,980
[On sale at 22:00 on 6/20] {Limited to 8 stones} 1 Brazilian ametrine loose stone (concave cut, average 7ct) {Multiple purchase discounts available}

[On sale at 22:00 on 6/20] {Limited to 8 stones} 1 Brazilian ametrine loose stone (concave cut, average 7ct) {Multiple purchase discounts available} Sale price¥5,980
【甲州貴石切子pluesthree】合成モアッサナイト 《コラボ》4.02ctルース ワッペン付

[On sale from 10pm on 6/19] [Koshu Precious Stones Plusthree] Synthetic Moissanite 10mm/4.02ct Loose Stone Patch Sale price¥39,800
【甲州貴石切子plusthree】デンドリティッククォーツ 22.850ctルース ワッペン付

[On sale from 10pm on 6/19] [Koshu Precious Stones plusthree] Brazilian Dendritic Quartz 22.850ct Loose Patch Sale price¥29,800
コンクパール（火焔模様有り） 1.260ctルース

[On sale from 10pm on 6/19] Dominican Republic Conch Pearl (with flame pattern) 1.260ct loose Sale price¥25,800
[On sale at 22:00 on 6/19] Pakistani Veirinite (Beylinenite) 0.168ct loose stone

[On sale at 22:00 on 6/19] Pakistani Veirinite (Beylinenite) 0.168ct loose stone Sale price¥39,800
コンクパール 0.800ctルース

[On sale at 22:00 on 6/19] Dominican Republic Conch Pearl 0.800ct Loose Sale price¥19,800
【甲州貴石切子plusthree】合成モアッサナイト 5.570ct《コラボ》ルース ワッペン付

[On sale from 10pm on 6/19] [Koshu Precious Stones Plusthree] Synthetic Moissanite 12mm/5.570ct Loose Stone Patch Sale price¥49,800
[On sale from 10pm on June 19th] {Limited quantity} Shinjuku Annex opening commemorative project - Ice blue diamond (VS class equivalent, 2mm) 1 loose stone {Multiple purchase discounts available}

[On sale from 10pm on June 19th] {Limited quantity} Shinjuku Annex opening commemorative project - Ice blue diamond (VS class equivalent, 2mm) 1 loose stone {Multiple purchase discounts available} Sale price¥5,980
コロンビア産エメラルドキャッツアイ 0.084ctルース

[On sale at 22:00 on 6/18] Colombian emerald cat's eye 0.084ct loose stone Sale price¥6,980
[On sale at 22:00 on 6/18] Brazilian Morganite 1.950ct loose stone

[On sale at 22:00 on 6/18] Brazilian Morganite 1.950ct loose stone Sale price¥14,800
[On sale at 22:00 on 6/18] Brazilian Paraiba Tourmaline 0.200ct loose stone (CuO: 0.7%, MnO: 4.0%)

[On sale at 22:00 on 6/18] Brazilian Paraiba Tourmaline 0.200ct loose stone (CuO: 0.7%, MnO: 4.0%) Sale price¥29,800

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