Round Cut

【10/30 22時販売】マダガスカル産セレスタイト 11.5mm/7.246ctルース Sale price¥18,800

【10/30 22時販売】マダガスカル産セレスタイト 9.7mm/4.927ctルース Sale price¥12,800

【10/30 22時販売】マダガスカル産セレスタイト 8.7mm/4.425ctルース Sale price¥12,800

【10/30 22時販売】マダガスカル産セレスタイト 8.4mm/3.991ctルース Sale price¥12,800

【10/27 22時販売】ブラジル産アレキサンドライト 2.6mm/0.056ctルース Sale price¥8,800

【10/27 22時販売】ブラジル産アレキサンドライト 2.8mm/0.070ctルース Sale price¥8,800

【10/26 22時販売】シルキーダイヤモンド 3.5mm/0.178ctルース Sale price¥19,800

【10/26 22時販売】シルキーダイヤモンド 2.8mm/0.096ctルース Sale price¥12,800

【10/25 22時販売】ダイヤモンド 3.8mm/0.200ctルース(D, VVS-1, Excellent) Sale price¥45,800

【10/24 22時販売】インド産アレキサンドライトキャッツアイ 0.787ctルース Sale price¥25,800

【10/31 22時販売】ミャンマー産パープルスピネル 0.434ctルース 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

【10/22 22時販売】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） 6mm/0.650ctルース 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

[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

[On sale at 10pm on 10/20] Sri Lankan blue sapphire 4.5mm/0.408ct loose stone Sale price¥12,800

[On sale from 10/20 at 10pm] Myanmar red spinel 3.3mm/0.165ct 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） 0.259ctルース

[On sale at 10pm on 12/10] Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 4mm/0.259ct loose stone Sale price¥5,980

[On sale 10/12 at 22:00] Madagascar Oregon Sunstone 4mm/0.239ct Loose Stone Sale price¥7,980

[On sale at 10pm on 14th October] Oregon Sunstone from the USA 3.8mm/0.208ct loose stone Sale price¥5,980

[On sale at 10pm on 14th October] Oregon Sunstone from the US 4.0mm/0.206ct loose stone Sale price¥8,800

[On sale at 10pm on 14th October] Oregon Sunstone from the US 4.0mm/0.204ct loose stone Sale price¥6,980

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） 0.294ctルース

[On sale at 10pm on 12/10] Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 4mm/0.294ct loose stone Sale price¥6,980

[On sale at 10/14 22:00] Oregon Sunstone from the United States 0.372ct loose stone Sale price¥12,800

[On sale at 10pm on 12/10] Myanmar gray spinel (platinum spinel) 5mm/0.557ct loose stone Sale price¥12,800

[On sale at 10pm on 14th October] Myanmar grey spinel (platinum spinel) 0.515ct loose stone Sale price¥12,800

[On sale at 10pm on 12/10] Oregon Sunstone from the United States 4.9mm/0.417ct loose stone Sale price¥22,800

[On sale at 10pm on 10/16] Oregon Sunstone from the United States 5.0mm/0.460ct loose stone Sale price¥19,800

[On sale at 10pm on 10/16] Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.284ct loose stone Sale price¥22,800

[12555224] Brazilian Paraiba Tourmaline in Quartz 0.330ct Loose Stone Sale price¥15,800

[12555222] Brazilian Paraiba Tourmaline in Quartz 0.162ct Loose Stone Sale price¥14,800

[On sale at 10pm on 10/16] German Awinite 3.0mm/0.089ct loose stone Sale price¥29,800

[On sale 10/10 at 22:00] Madagascar Grandidierite 2.5mm/0.071ct loose stone Sale price¥14,800

[On sale at 10pm on 10/17] German Auchenite 2.7mm/0.063ct loose stone Sale price¥22,800

[On sale from 10/6 at 22:00] YAG (Yttrium Aluminum Garnet) 7.1mm/1.709ct loose stone Sale price¥12,800

[On sale from 10/4 at 22:00] Hana Shinju (black pearl) 13mm/18.972ct loose pearl, Hana Shinju guarantee card Sale price¥59,800

[On sale from 10/4 at 22:00] Hana Shinju (South Sea pearl) 11mm/13.962ct loose pearl, Hana Shinju guarantee card Sale price¥59,800

[On sale from 10/6 at 22:00] American Benitoite 1.8mm/0.159ct loose stone (gradation) Sale price¥39,800

Brazilian Lazurite (Azurite) 0.061ct loose stone Sale price¥18,800

Brazilian Lazurite (Azurite) 0.052ct loose stone Sale price¥16,800

Brazilian Lazurite (Azurite) 0.049ct loose stone Sale price¥18,800

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