0.1ct - 2.0ct

[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 dendritic agate 1.800ct loose stone Sale price¥1,980

ナミビア産エレメージェバイト（ジェレメジェバイト） 0.315ctルース（酸化鉄含有）

[On sale at 22:00 on 6/15] Namibian Eremejevite (Jeremejevite) 0.315ct loose stone (iron oxide included) Sale price¥19,800

[On sale at 22:00 on 6/15] Brazilian Paraiba Tourmaline 3.1mm/0.116ct loose stone (CuO:0.9%, MnO:2.4%) Sale price¥19,800

ブラジル産パライバトルマリン 0.157ctルース（CuO:1.0%、MnO:3.7%）

[On sale at 22:00 on 6/15] Brazilian Paraiba Tourmaline 0.157ct loose stone (CuO: 1.0%, MnO: 3.7%) Sale price¥25,800

[On sale at 22:00 on 6/15] Nigerian Cobalt Garnite 0.175ct Loose Stone, Japan-Germany Exchange Sale price¥35,800

[On sale at 22:00 on 6/12] Madagascar Andalusite 4.6mm/0.369ct loose stone Sale price¥5,980

[On sale 6/12 at 10pm] Dominican Republic Conch Pearl (with flame pattern) 0.960ct loose Sale price¥18,800

[On sale at 10pm on 6/12] Dominican Republic Conch Pearl (with flame pattern) 0.950ct loose Sale price¥15,800

[On sale at 22:00 on 6/12] Nigerian pink tourmaline 1.140ct loose stone (pixel cut) Sale price¥6,980

[On sale at 22:00 on 6/11] Brazilian Madeira Citrine 6.8mm/1.110ct Loose Sale price¥4,980

[On sale at 22:00 on 6/11] Sweet Home Rhodochrosite 2.7mm/0.108ct loose stone Sale price¥12,800

フォレストグリーンダイヤモンド（トリートメント） 0.431ctルース(FANCY DARK GRAY GREEN, SI-2)

[On sale from 10pm on 6/11] Forest Green Diamond (treated) 0.431ct loose stone (FANCY DARK GRAY GREEN, SI-2) Sale price¥35,800

フォレストグリーンダイヤモンド（トリートメント） 0.326ctルース(FANCY DARK GRAY GREEN, SI-2)

[On sale from 10pm on 6/11] Forest green diamond (treated) 0.326ct loose (FANCY DARK GRAY GREEN, SI-2) Sale price¥29,800

[On sale at 22:00 on 6/10] Mexican fire opal 0.448ct loose stone Sale price¥3,980

[On sale at 22:00 on 6/10] Kenyan Gold Sheen Sapphire 0.257ct Loose Sale price¥19,800

[On sale at 22:00 on 6/14] Brazilian bicolor topaz 0.973ct loose stone Sale price¥12,800

[On sale at 22:00 on 6/15] Bicolor sapphire 0.973ct loose stone Sale price¥29,800

[On sale at 22:00 on 6/15] Madagascar aquamarine 1.678ct loose stone Sale price¥15,800

[On sale at 22:00 on 6/15] Madagascar aquamarine 0.709ct loose stone Sale price¥18,800

[On sale at 22:00 on 6/15] Tibetan Andesine 0.671ct loose stone Sale price¥12,800

[On sale at 22:00 on 6/15] Blue sapphire 0.466ct loose stone Sale price¥12,800

[On sale from 10pm on June 15th] Blue sapphire 0.282ct loose stone (teal color) Sale price¥15,800

[On sale at 22:00 on 6/15] Blue sapphire 0.362ct loose stone Sale price¥19,800

[On sale at 22:00 on 6/18] Brazilian aquamarine 0.474ct loose stone Sale price¥12,800

coming soon

[12558245] 0.870ct loose purple spinel from Madagascar Sale price¥14,800

[On sale at 22:00 on 6/18] Madagascar purple spinel 5.2mm/0.651ct loose stone Sale price¥8,800

[On sale at 22:00 on 6/18] Madagascar Andalusite 0.832ct loose stone Sale price¥8,800

coming soon

[12558226] Vietnam aquamarine 0.631ct loose stone Sale price¥9,800

[On sale at 22:00 on 6/18] Vietnam aquamarine 0.586ct loose stone Sale price¥12,800

[On sale at 22:00 on 6/17] Afghanistan diaspore 0.215ct loose stone Sale price¥12,800

[On sale at 22:00 on 6/17] Brazilian Green Spodumene 1.997ct Loose Stone Sale price¥12,800

[On sale at 22:00 on 6/16] Synthetic Alexandrite 0.560ct loose stone Sale price¥14,800

[On sale at 22:00 on 6/16] Brazilian mint color tourmaline 0.849ct loose stone Sale price¥29,800

coming soon

[12558087] Benitoite 0.167ct loose stone Sale price¥59,800

[On sale at 22:00 on 6/17] Spanish Sphalerite 5.6mm/0.956ct loose stone Sale price¥14,800

coming soon

[12558042] 0.878ct loose sphalerite from Spain Sale price¥12,800

coming soon

[12558041] 0.841ct loose sphalerite from Spain Sale price¥12,800

[On sale at 22:00 on 6/8] Sri Lankan bicolor sapphire 1.020ct loose stone Sale price¥59,800

[On sale from 10pm on 6/8] [Koshu Precious Stones Plusthree] Brazilian Citrine 0.912ct Loose Patch Sale price¥19,800

[On sale from 10pm on 6/8] [Koshu Precious Stones Plusthree] Brazilian Citrine 1.121ct Loose Stone Patch Sale price¥19,800

マダガスカル産アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.790ctルース

[On sale 6/8 at 22:00] Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.790ct loose stone Sale price¥4,980

[On sale at 22:00 on 6/8] Brazilian bicolor tourmaline 0.716ct loose stone (rose cut) Sale price¥6,980

【KEN氏】メキシコ産ファイアオパール 1.190ctルース - カラッツSTORE

[On sale 6/8 at 22:00] Mexican Fire Opal 1.190ct Loose (Contralus Opal) Sale price¥12,800

【KEN氏】アフリカ産パーティカラートルマリン 0.968ctルース（トリカラートルマリン） - カラッツSTORE

[On sale at 22:00 on 6/8] African parti-color tourmaline 0.968ct loose stone (tri-color tourmaline) Sale price¥14,800

ブラジル産パーティカラーパライバトルマリン 0.203ctルース（CuO:1.7%、MnO:2.9%）

[On sale at 22:00 on 6/8] Brazilian parti-color Paraiba tourmaline 0.203ct loose stone (CuO: 1.7%, MnO: 2.9%) Sale price¥59,800

【さくらインカット】アベンチュリンアクアマリン 7.7mm/1.240ctルース《コラボ》ワッペン付 - カラッツSTORE

[On sale at 22:00 on 6/8] [Sakura Incut] Brazilian Aventurine Aquamarine 7.7mm/1.240ct Loose Stone [Collaboration] Patch Sale price¥29,800

【さくらインカット】レピドクロサイトインクォーツ 7mm/1.007ct《コラボ》ルースワッペン

[On sale from 22:00 on 6/8] [Sakura in cut] Brazilian Lepidocrocite in Quartz 7mm/1.007ct [Collaboration] Loose Patch Sale price¥25,800

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