Vertical: Above 10.0mm

[On sale at 22:00 on 6/14] Colombian fluorite 6.327ct loose stone Sale price¥25,800

[On sale at 22:00 on 6/14] Afghanistan Kunzite 4.992ct loose stone Sale price¥15,800

[12558264] Kunzite (lilac pink) from Afghanistan 2.993ct loose stone Sale price¥25,800

[12558262] Colombian fluorite 5.903ct loose stone Sale price¥18,800

[12558193] Brazilian bicolor topaz 2.618ct loose stone Sale price¥18,800

[On sale at 22:00 on 6/17] Oligoclase Sunstone 15mm/10.593ct Loose Sale price¥15,800

インターナリーダイヤモンド 0.25ルース(E, IF, 3Excellent) GIA

[On sale at 22:00 on 6/8] Internal Diamond 0.25 Loose (F, IF, 3Excellent) GIA Sale price¥69,800

[On sale at 22:00 on 6/8] Bicolor sapphire 5.640ct loose stone with certificate Sale price¥98,000

[On sale at 22:00 on 6/8] Brazilian green tourmaline 4.613ct loose stone Sale price¥39,800

[On sale 6/6 at 22:00] Brazilian Rainbow Aquamarine 3.308ct Loose Sale price¥29,800

[On sale 6/6 at 22:00] Brazilian Rainbow Aquamarine 3.188ct Loose Sale price¥22,800

[On sale at 22:00 on 6/7] Dendritic Opal 3.041ct Loose Sale price¥18,800

[On sale at 22:00 on 6/7] Sri Lankan zircon 3.614ct loose stone Sale price¥29,800

[On sale at 22:00 on 6/8] Afghanistan Lazurite in Sodalite 2.387ct loose stone Sale price¥39,800

[On sale at 22:00 on 6/10] Brazilian Rubellite 2.439ct loose stone Sale price¥69,800

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） 3.675ctルース

[On sale 6/3 at 22:00] Indian Andesine Labradorite (also known as Rainbow Moonstone) 3.675ct loose stone Sale price¥59,800

[On sale at 22:00 on 6/10] Brazilian Dumortierite in Quartz 3.240ct loose stone Sale price¥15,800

[On sale at 22:00 on 6/10] Madagascar Moloxite (Green Apatite) 4.087ct Loose Stone Sale price¥39,800

[On sale at 22:00 on 6/5] Brazilian rutilated quartz (rutilated quartz) 7.741ct loose stone Sale price¥15,800

[On sale from 10pm on 5/27] [Takeshi Yamamoto] Bicolor smoky quartz 10.674ct loose stone Sale price¥39,800

[On sale from 10pm on 5/27] [Takeshi Yamamoto] Brazilian Rock Crystal 22mm/48.216ct Loose Stone (Fire Flower) Sale price¥59,800

Synthetic Moissanite 8.417ct Loose Stone Sale price¥49,800

[On sale from 10pm on 5/20] Kunzite from Afghanistan 8.609ct loose stone Sale price¥14,800

【山本武氏】ブラジル産ルチルクォーツ（ルチルレイテッドクォーツ） 31.967ctルース

[On sale from 10pm on 5/21] [Takeshi Yamamoto] Brazilian rutilated quartz (rutilated quartz) 31.967ct loose stone Sale price¥59,800

[On sale from 10pm on 5/21] [Takeshi Yamamoto] Brazilian Ametrine 29.930ct loose stone Sale price¥79,800

[On sale from 10pm on 5/16] Mexican Cantera Opal 6.112ct loose stone Sale price¥59,800

[On sale at 22:00 on 6/14] Cambodian blue zircon (Ratanakiri blue) 6.771ct loose stone Sale price¥168,000

[On sale 6/7 at 22:00] Mexican Cantera Opal 14.458ct loose stone (faceted cut) Sale price¥14,800

[On sale at 22:00 on 6/7] Brazilian Paraiba Tourmaline in Quartz 3.046ct loose stone Sale price¥45,800

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） 6.645ctルース

[On sale at 22:00 on 6/15] Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 6.645ct loose stone Sale price¥98,000

[On sale from 10pm on 5/18] Australian white opal 2.318ct loose Sale price¥12,800

[On sale from 10pm on 5/25] Afghanistan Kunzite 1.857ct loose stone Sale price¥18,800

[On sale at 22:00 on 5/13] Synthetic black opal 5.013ct loose stone Sale price¥59,800

[On sale from 10pm on 5/25] Sri Lankan star sapphire 7.976ct loose stone Sale price¥98,000

[On sale from 22:00 on 5/6] Tanzanian bicolor zoisite 2.270ct loose stone Sale price¥45,800

[On sale 5/3 at 22:00] Montana Agate 6.534ct loose stone Sale price¥6,980

[On sale at 22:00 on 5/12] Brazilian Green Spodumene 6.484ct Loose Stone Sale price¥29,800

[On sale at 22:00 on 5/13] Bolivian Ametrine 3.751ct loose stone Sale price¥9,800

[On sale at 10pm on 4/20] Mexican Cantera Opal 3.176ct loose stone Sale price¥39,800

[On sale at 22:00 on 4/19] Mexican Cantera Opal 2.038ct loose stone Sale price¥29,800

[On sale at 10pm on 4/19] Mexican Cantera Opal 3.167ct loose stone (faceted cut) Sale price¥12,800

[On sale at 10pm on 4/25] Tibetan Andesine 2.020ct loose stone Sale price¥18,800

[On sale at 22:00 on 5/29] Afghanistan Kunzite 7.741ct loose stone Sale price¥15,800

[On sale at 10pm on 4/22] Kunzite from Afghanistan 2.938ct loose stone Sale price¥9,800

[On sale at 22:00 on 5/29] Synthetic black opal 2.996ct loose stone Sale price¥29,800

[On sale at 10pm on 4/16] [Takeshi Yamamoto] Brazilian Ametrine 24.465ct loose stone Sale price¥98,000

ブラジル産非加熱ピンクインペリアルトパーズ（シェリーピンク） 0.423ctルース

[On sale from 10pm on 4/17] Brazilian unheated pink imperial topaz (sherry pink) 0.423ct loose stone Sale price¥15,800

Prehnite 3.016ct loose stone Sale price¥6,980

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