Product list

[On sale 11/12 at 22:00] 2.467ct loose Oregon sunstone from the United States Sale price¥9,800

[11/12 22:00 Sale] Sri Lankan Chrysoberyl Cat's Eye 0.532ct Loose Stone Sale price¥5,980

[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

[11/12 22:00 Sale] Brazilian Alexandrite 0.058ct Loose Sale price¥8,800

[On sale 11/7 at 10pm] Mexican Hyalite Opal 0.171ct loose stone (fluoresces even in sunlight) Sale price¥17,800

[On sale 11/7 at 10pm] Mexican Hyalite Opal 0.170ct loose stone (fluoresces even in sunlight) Sale price¥18,800

[On sale 11/7 at 22:00] Nigerian Cobalt Garnite 0.150ct Loose Sale price¥12,800

マダガスカル産アンデシン・ラブラドライト（通称名ブルームーンストーン） 1.453ctルース

[On sale 11/7 at 10pm] Madagascar Andesine Labradorite (also known as Blue Moonstone) 1.453ct loose stone Sale price¥19,800

Sold out

[On sale 11/7 at 22:00] Afghanistan Sodalite 0.231ct loose stone

[On sale at 10pm on 11/5] Brazilian bicolor tourmaline 0.763ct loose stone Sale price¥7,980

[On sale at 10pm on 11/5] Brazilian bicolor tourmaline 1.177ct loose stone Sale price¥12,800

[On sale 11/5 at 22:00] Colombian Trapiche Emerald 1.341ct Loose Sale price¥6,980

[On sale from 10pm on 11/5] Myanmar purple spinel 0.514ct loose stone Sale price¥8,800

[On sale 11/4 at 22:00] Pakistani lazurite (blue sapphire) 0.123ct loose stone Sale price¥59,800

[On sale 11/4 at 22:00] Brazilian Paraiba Tourmaline 0.112ct loose stone Sale price¥29,800

[On sale 11/4 at 22:00] Brazilian Paraiba Tourmaline 0.138ct loose stone Sale price¥39,800

[On sale 11/4 at 22:00] Brazilian Paraiba Tourmaline 0.181ct loose stone (CuO: 0.7%, MnO: 0.2%) Sale price¥59,800

[On sale 11/4 at 22:00] Tanzanian blue spinel 1.028ct loose stone Sale price¥39,800

[On sale 11/4 at 22:00] Set of 2 Tanzanian bicolor tanzanite rough stones and loose stones, 3.018ct Sale price¥6,980

[On sale 11/4 at 10pm] Montana Sapphire 3.3mm/0.158ct loose stone (green sapphire) Sale price¥15,800

[On sale 11/4 at 22:00] Brazilian bicolor tourmaline 0.548ct loose stone Sale price¥9,800

奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 10.080ctルース

[On sale at 10pm on November 4th] Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture, 10.080ct loose stone Sale price¥8,800

[On sale 11/4 at 10pm] Brazilian Alexandrite 0.519ct loose stone (sugarloaf cut) Sale price¥358,000

[On sale 11/4 at 22:00] Non-oil emerald 1.070ct loose stone with Gubelin certificate Sale price¥698,000

Sold out

[11/4 22:00 Sale] Myanmar Musgravite 0.090ct Loose GLT Grade

【さくらシェイプ】ブラジル産インペリアルトパーズ（シェリーカラー） 6.3mm/1.084ct《コラボ》ルースワッペン

[On sale from 10pm on 11/4] [Sakura Shape] Brazilian Imperial Topaz (Shelly Color) 6.3mm/1.084ct [Collaboration] Loose Patch Sale price¥79,800

【さくらシェイプ】アメリカ産オレゴンサンストーン 7.3mm/1.361ct《コラボ》ルースワッペン

Lottery Sale ⑤ [Lottery Sale 0928] [Published on 12555057] [Sakura Shape] Oregon Sunstone from the United States 7.3mm/1.361ct Loose Stone Sale price¥69,800

【さくらシェイプ】メキシコ産オパール 6.7mm/0.792ctルース（コントラルス）

[On sale from 10pm on 11/4] [Sakura Shape] Mexican Opal 6.7mm/0.792ct [Collaboration] Loose (Contralus) Patch Sale price¥59,800

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

[On sale 11/3 at 22:00] Brazilian bicolor tourmaline 0.914ct loose stone Sale price¥12,800

[On sale 11/3 at 22:00] Tanzanite from Tanzania 1.36ct loose stone Sale price¥49,800

[On sale 11/3 at 22:00] Unheated Ruby 0.330ct Loose AIGS Sale price¥35,800

[On sale 11/4 at 10pm] Pt900 Colombian emerald 0.72ct, diamond 0.61ct ring Sale price¥158,000

Pt900/Pt850 ブラジル産アレキサンドライト 0.2ct ペンダント（ネックレス）

[On sale from 10pm on 11/4] Pt900/Pt850 Brazilian Alexandrite 0.2ct Diamond Pendant (Necklace) Sale price¥79,800

[On sale 11/4 at 22:00] Pt900/Pt850 Australian black opal 0.37ct, diamond 0.73ct necklace Sale price¥198,000

[11/2 22:00 Sale] Australian Opal 6.799ct Loose Stone, Japan-Germany Exchange Sale price¥59,800

[On sale 11/2 22:00] Pigeon Blood Ruby 0.280ct Loose AIGS Sale price¥45,800

[11/2 22:00 Sale] Brazilian Indigolite Tourmaline 0.626ct Loose Stone JTL Grade Sale price¥18,800

[On sale 11/2 at 22:00] Burmese ruby 0.418ct loose stone Japan-Germany Sale price¥35,800

[11/2 22:00 Sale] Burmese Unheated Ruby 0.245ct Loose Stone Nikko Kan Sale price¥39,800

[On sale 11/2 at 10pm] Myanmar ruby 0.283ct loose Sale price¥29,800

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

[On sale 11/2 at 10pm] Bankacha Sapphire 1.413ct Loose Sale price¥15,800

[On sale 11/2 at 10pm] Burmese ruby 0.239ct loose Sale price¥9,800

[On sale 11/2 at 10pm] Emerald 0.254ct loose stone Sale price¥15,800

[On sale 11/2 at 10pm] Emerald 0.484ct 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