Round Cut

[On sale at 10pm on 11/14] Indian Iolite Sunstone 0.247ct Loose Sale price¥5,980

[On sale 11/10 at 22:00] Indian Iolite Sunstone 4.3mm/0.243ct Loose Sale price¥6,980

[On sale at 10pm on 11/10] Blue beryl (Mashish beryl) 3.5mm/0.152ct loose stone Sale price¥8,800

[On sale at 10pm on 11/14] Blue beryl (Mashish beryl) 3.6mm/0.176ct loose stone Sale price¥8,800

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） 0.483ctルース

[On sale 11/10 at 22:00] Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 5.2mm/0.483ct loose stone Sale price¥7,980

[On sale 11/10 at 22:00] Indian Moonstone 6.2mm/0.749ct Loose Sale price¥7,980

[11/10 22:00 Sale] Tanzanian Garnet 8.0mm/2.538ct Loose Stone Sale price¥12,800

ブラジル産ルチルクォーツ（ルチルレイテッドクォーツ）12mm/7.140ctルース

[On sale 11/12 at 10pm] Brazilian rutilated quartz (rutilated quartz) 12mm/7.140ct loose stone Sale price¥9,800

ブラジル産ルチルクォーツ（ルチルレイテッドクォーツ） 12mm/6.709ctルース

[On sale 11/12 at 10pm] Brazilian rutilated quartz (rutilated quartz) 12mm/6.709ct loose stone Sale price¥9,800

[On sale 11/12 at 10pm] Colombian emerald 3.5mm/0.150ct loose stone Sale price¥22,800

[On sale 11/12 at 10pm] American Red Beryl 3.0mm/0.080ct Loose Sale price¥39,800

アンデシン・ラブラドライトムーンストーン（通称名レインボームーンストーン） 0.349ctルース

[On sale 11/12 at 10pm] Madagascar Andesine Labradorite Moonstone (also known as Rainbow Moonstone) 4.7mm/0.349ct loose stone Sale price¥12,800

[On sale 11/4 at 22:00] Pakistani Veirinite 4.5mm/0.326ct loose stone Sale price¥88,800

[On sale 11/2 at 10pm] Madagascar sapphire 3.0mm/0.126ct loose stone Sale price¥8,800

[On sale 11/2 at 10pm] Madagascar sphene 6.2mm/0.906ct loose stone Sale price¥12,800

[On sale 11/2 at 10pm] Color shift amethyst 4.499ct loose stone Sale price¥18,800

[On sale 11/3 at 22:00] Tanzanite from Tanzania 4.6mm/0.429ct loose stone Sale price¥12,800

[On sale 11/3 at 22:00] Tanzanian bicolor zoisite 4.6mm/0.401ct loose stone Sale price¥12,800

[On sale at 10pm on 11/6] Tanzanian bicolor zoisite 0.450ct loose stone Sale price¥9,800

[On sale 11/3 at 22:00] Tanzanian bicolor zoisite 4.7mm/0.415ct loose stone Sale price¥12,800

[On sale at 10pm on 11/6] Tanzanite from Tanzania 0.478ct loose stone Sale price¥9,800

[On sale 11/4 at 22:00] Spanish Sphalerite 7mm/1.676ct loose stone Sale price¥35,800

[On sale 11/4 at 22:00] Montana Sapphire 3.0mm/0.119ct Loose (Blue Sapphire) Sale price¥6,980

[On sale 11/4 at 10pm] Montana Sapphire 3.7mm/0.272ct Loose (Blue Sapphire) Sale price¥9,800

[On sale at 10pm on 10/30] Madagascar Celestite 11.5mm/7.246ct loose stone Sale price¥18,800

[On sale 11/13 at 22:00] Madagascar Celestite 11.0mm/7.556ct loose stone Sale price¥18,800

[On sale at 10pm on 10/30] Madagascar Celestite 9.7mm/4.927ct loose stone Sale price¥12,800

[On sale at 10pm on 10/30] Madagascar Celestite 8.7mm/4.425ct loose stone Sale price¥12,800

[On sale at 10pm on 10/30] Madagascar Celestite 8.4mm/3.991ct loose stone Sale price¥12,800

ブラジル産パライバトルマリン 3.3mm/0.123ctルース《エイトリータ》（CuO:2.0%、MnO:0.8%）

[On sale from 11/1 at 22:00] Brazilian Paraiba Tourmaline 3.3mm/0.123ct loose stone "Eitreta" (CuO: 2.0%, MnO: 0.8%) Sale price¥128,000

[On sale from 10/27 at 10pm] Brazilian Alexandrite 2.8mm/0.070ct loose stone Sale price¥8,800

[On sale at 10pm on 10/26] Silky Diamond 3.5mm/0.178ct Loose Sale price¥19,800

[On sale from 10/31 at 22:00] Myanmar purple spinel 0.434ct loose stone Sale price¥12,800

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） 0.650ctルース

[On sale at 10pm on 10/22] Indian Andesine Labradorite (also known as Rainbow Moonstone) 6mm/0.650ct loose stone Sale price¥15,800

ブラジル産パライバトルマリン 0.167ctルース（CuO:1.1%、MnO:3.6%）

[On sale from 10/22 at 10pm] Brazilian Paraiba Tourmaline 0.167ct loose stone (CuO: 1.1%, MnO: 3.6%) Sale price¥69,800

[On sale from 10/21 at 10pm] American Peridot 7.2mm/1.530ct Loose Sale price¥14,800

[On sale from 10/21 at 10pm] [Koshu Precious Stone Cut] Brazilian Rutile Quartz (Rutiled Quartz) 2.270ct Loose Patch Sale price¥29,800

ロシア産デマントイドガーネット（ホーステール認む） 3mm/0.165ctルース

[On sale at 10pm on 10/20] Russian Demantoid Garnet (Horsetail certified) 3mm/0.165ct loose stone Sale price¥45,800

[On sale at 10pm on 10/20] Colombian emerald 3.1mm/0.097ct loose stone Sale price¥22,800

[On sale at 10pm on 10/19] Oregon Sunstone from the USA 11mm/4.05ct loose stone (vortex cut) Sale price¥39,800

マダガスカル産ホワイトトパーズ（ニードルイントパーズ） 7.8mm/2.336ctルース

[On sale 11/13 at 22:00] Madagascar White Topaz (Needle-in Topaz) 7.8mm/2.336ct Loose Sale price¥5,980

[On sale at 10pm on 10/19] Sri Lankan blue sapphire 3.9mm/0.265ct loose stone Sale price¥7,980

[On sale at 10pm on 10/20] Sri Lankan blue sapphire 3.8mm/0.279ct loose stone Sale price¥8,800

[On sale at 10pm on 10/20] Sri Lankan blue sapphire 4.5mm/0.401ct loose stone Sale price¥12,800

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） 0.259ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 4mm/0.259ct Loose Stone Sale price¥5,980

Madagascar Oregon Sunstone 4mm/0.239ct Loose Stone Sale price¥7,980

[On sale at 10pm on 14th October] Oregon Sunstone from the US 4.0mm/0.206ct 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