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[On sale from 10pm on 4/5] [Jeweler's Tools] {Only a few left} 3-piece set: Jewelry loupe (14x magnification), blue diamond, and pink tourmaline or sapphire

[On sale from 10pm on 4/5] [Jeweler's Tools] {Only a few left} 3-piece set: Jewelry loupe (14x magnification), blue diamond, and pink tourmaline or sapphire Sale price¥3,980
[On sale from 10pm on 4/13] Limited to 20 stones Gem gacha💎 One loose stone of pink tourmaline Sakura in-cut and mint diopsite with many inclusions and chips (multiple purchase discounts available)

[On sale from 10pm on 4/13] Limited to 20 stones Gem gacha💎 One loose stone of pink tourmaline Sakura in-cut and mint diopsite with many inclusions and chips (multiple purchase discounts available) Sale price¥3,980
[On sale 4/4 at 10pm] {4 stones remaining} Brazilian unheated Imperial Topaz 1 loose stone {Multiple purchase discounts available}

[On sale 4/4 at 10pm] {4 stones remaining} Brazilian unheated Imperial Topaz 1 loose stone {Multiple purchase discounts available} Sale price¥3,980
[On sale at 10pm on 4/12] {Limited to 9 sets} Diamond Gacha💎 Yellow Diamond Rough Stone and 2 Loose Stone Set {Multiple Purchase Discounts Available}

[On sale at 10pm on 4/12] {Limited to 9 sets} Diamond Gacha💎 Yellow Diamond Rough Stone and 2 Loose Stone Set {Multiple Purchase Discounts Available} Sale price¥2,980
[On sale from 10pm on 4/4] [Jeweler's Tools] [Limited Quantity] Chelsea Color Filter Emerald 2-piece Set

[On sale from 10pm on 4/4] [Jeweler's Tools] [Limited Quantity] Chelsea Color Filter Emerald 2-piece Set Sale price¥6,980
[On sale from 10pm on 4/6] [Limited to 9 stones] 1 loose Brazilian Elestial Amethyst (average 2.5ct) [Multiple purchase discounts available]

[On sale from 10pm on 4/6] [Limited to 9 stones] 1 loose Brazilian Elestial Amethyst (average 2.5ct) [Multiple purchase discounts available] Sale price¥5,980
[On sale from 10pm on March 30th] Set of 2 Tanzanite stones from Tanzania (2mm, round cut) {Multiple purchase discounts available}

[On sale from 10pm on March 30th] Set of 2 Tanzanite stones from Tanzania (2mm, round cut) {Multiple purchase discounts available} Sale price¥1,580
[On sale from 10pm on 4/20] {Limited to 3 stones} Gem gacha💎Black star sapphire (including 12-ray star) loose stone from Bangkacha, Thailand

[On sale from 10pm on 4/20] {Limited to 3 stones} Gem gacha💎Black star sapphire (including 12-ray star) loose stone from Bangkacha, Thailand Sale price¥6,980
[On sale from 10pm on 4/20] Limited to 3 stones UV type mint garnet 1 loose stone (oval cut) Multiple purchase discounts available

[On sale from 10pm on 4/20] Limited to 3 stones UV type mint garnet 1 loose stone (oval cut) Multiple purchase discounts available Sale price¥2,980
【4/20 22時販売】《限定5石》メキシコ産ハイアライトオパール1石ルース（平均0.5ct）《複数購入割引有》

【4/20 22時販売】《限定5石》メキシコ産ハイアライトオパール1石ルース（平均0.5ct）《複数購入割引有》 Sale price¥2,980
ブラジル産パライバトルマリン 0.220ctルース

[On sale at 22:00 on 4/4] Brazilian Paraiba Tourmaline 0.220ct loose stone (CuO: 0.7%, MnO: 3.0%) GIT Sale price¥45,800
ブルーサファイア 3.9mm/0.280ctルース

[On sale 4/2 at 10pm] Blue sapphire 3.9mm/0.280ct loose stone Sale price¥9,800
ブラジル産サンタマリアアクアマリン 0.240ctルース

[On sale 4/2 at 10pm] Brazilian Santa Maria Aquamarine 0.240ct loose stone Sale price¥8,800
エメラルド 0.138ctルース

[On sale from 10pm on 4/1] Emerald 0.138ct loose stone Sale price¥6,980
メキシコ産カンテラオパール 6.629ctルース

[On sale 4/1 at 22:00] Mexican Cantera Opal 6.629ct loose stone Sale price¥9,800
タンザニア産タンザナイト 0.250ctルース

[On sale from 10pm on 4/1] Tanzanite from Tanzania 0.250ct loose stone Sale price¥8,800
K18メキシコ産ウォーターオパール 4.3mm/0.175ct リング

[On sale from 10pm on 4/5] K18 Mexican water opal 4.3mm/0.175ct ring Sale price¥79,800
K18PG ブラジル産カラーシフトアメジスト・ハックマナイト・ピンクサファイアリング

[On sale from 10pm on 4/5] K18PG Brazilian color shift amethyst, hackmanite and pink sapphire ring Sale price¥79,800
ダイヤモンド 0.091ctルース(G, SI2)

[On sale at 10pm on March 29th] Diamond 0.091ct loose stone (G, SI2, sector cut) Sale price¥9,800
イエローダイヤモンド 0.390ctルース(UNDER S(LIGHT YELLOW), VVS1, 3Excellent H&C)

[On sale 3/29 at 10pm] Yellow Diamond 4.7mm/0.390ct Loose (LIGHT YELLOW, VVS1, 3Excellent H&C) Sale price¥49,800
ブラジル産アメトリン 11.843ctルース

[On sale 3/29 at 10pm] Brazilian Ametrine 11.843ct loose stone Sale price¥22,800
【甲州貴石切子】ミルキーアクアマリン 5.20ctルース - カラッツSTORE

[On sale at 22:00 on 3/30] [Koshu Precious Stone Cutting] Milky Aquamarine from Brazil 5.209ct Loose Color [Collaboration] Patch Nichidokukan Sale price¥59,800
[On sale from 10pm on March 30th] Limited to 24 stones South African diamond rough (yellow fluorescent, orange fluorescent, green fluorescent) [Multiple purchase discounts available]

[On sale from 10pm on March 30th] Limited to 24 stones South African diamond rough (yellow fluorescent, orange fluorescent, green fluorescent) [Multiple purchase discounts available] Sale price¥2,980
メキシコ産オパール 1.465ctルース

[On sale from 10pm on 4/1] [Sakura Shape] Mexican Opal 8.2mm/1.465ct [Collaboration] Loose Patch Sale price¥45,800
コロンビア産パイライトインエメラルド 27.414ctルース

[On sale 4/4 at 10pm] Colombian pyrite in emerald 27.414ct loose stone Sale price¥298,000
ブラジル産シトリン 2.641ctルース

[On sale 4/2 at 10pm] Brazilian citrine 2.641ct loose stone Sale price¥8,800
ブラジル産パライバトルマリン 0.173ctルース（CuO:1.9%、MnO:1.0%）

[On sale 4/4 at 10pm] Brazilian Paraiba Tourmaline 0.173ct loose stone (CuO: 1.9%, MnO: 1.0%) Sale price¥158,000
スタールビー 0.286ctルース

[On sale at 22:00 on 4/6] Star Ruby 0.286ct loose stone with certificate Sale price¥15,800
スタールビー 0.564ctルース

[On sale at 22:00 on 4/9] Sri Lankan Star Ruby 0.564ct Loose Stone with Certificate of Authenticity Sale price¥24,800
スタールビー 0.461ctルース

[On sale at 22:00 on 4/6] Star Ruby 0.461ct loose stone with certificate Sale price¥18,800
インディゴライトトルマリン 3.707ctルース

[On sale 4/6 at 22:00] Brazilian indigolite tourmaline 3.707ct loose stone with certificate Sale price¥128,000
ブラジル産パライバトルマリン 0.320ctルース

[On sale from 10pm on 4/6] Brazilian Paraiba Tourmaline 0.320ct loose stone GIA Sale price¥148,000
ピジョンブラッドルビー 0.940ctルース

[On sale at 22:00 on 4/6] Pigeon Blood Ruby 0.940ct Loose GIA Sale price¥128,000
ロシア産デマントイドガーネット（ホーステール認む） 0.293ctルース

[On sale at 22:00 on 4/5] Russian Demantoid Garnet (Horsetail certified) 3.6mm/0.293ct loose stone Sale price¥49,800
ミャンマー産スターペリドット 3.644ctルース

[On sale at 22:00 on 4/5] Myanmar Star Peridot 3.644ct Loose Stone Sale price¥39,800
ブラジル産ライモナイトイントパーズ 10.100ctルース

[On sale 4/2 at 10pm] Brazilian Limonite in Topaz 10.100ct loose stone Sale price¥25,800
ダイヤモンド 0.215ctルース（ローズカット）

[On sale at 10pm on 4/5] Diamond 0.215ct loose (rose cut) Sale price¥15,800
ミャンマー産スターペリドット 2.678ctルース

[On sale at 22:00 on 4/5] Myanmar Star Peridot 2.678ct Loose Sale price¥29,800
タンザナイト 1.384ctルース

[On sale at 22:00 on 4/9] Tanzanite from Tanzania 1.384ct loose stone Sale price¥35,800
タンザナイト 1.026ctルース

[On sale at 22:00 on 4/9] Tanzanite from Tanzania 6.5mm/1.026ct loose stone Sale price¥35,800
タンザナイト 1.188ctルース

[On sale at 22:00 on 4/9] Tanzanite from Tanzania 1.188ct loose stone Sale price¥39,800
ピンクスターサファイア 0.270ctルース

[On sale 4/4 at 10pm] Sri Lankan pink star sapphire 0.270ct loose stone Sale price¥12,800
ピンクスターサファイア 0.391ctルース

[On sale 4/4 at 10pm] Sri Lankan pink star sapphire 0.391ct loose stone Sale price¥12,800
ブラジル産アレキサンドライト 0.066ctルース

[On sale at 22:00 on 4/5] Brazilian Alexandrite 0.066ct loose stone (emerald cut) Sale price¥22,800
ブラジル産アレキサンドライト 0.071ctルース

[On sale at 22:00 on 4/5] Brazilian Alexandrite 0.071ct loose stone (emerald cut) Sale price¥29,800
ブラジル産アレキサンドライト 0.098ctルース

[On sale at 10pm on 4/5] Brazilian Alexandrite 0.098ct loose stone (emerald cut) Sale price¥39,800
コッパールチルクォーツ 2.051ctルース

[On sale 4/8 at 10pm] Brazilian copper rutilated quartz 2.051ct loose stone Sale price¥8,800
コッパールチルクォーツ 1.445ctルース

[On sale 4/8 at 10pm] Brazilian copper rutilated quartz 1.445ct loose stone 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