Products on display at Yurakucho Marui

Cambodian Blue Zircon (Ratanakiri Blue) 23.12ct Loose Sale price¥498,000

Kunzite 50.260ct loose Sale price¥198,000

[On sale from 22:00 on 5/2] Pakistani bicolor sphene 3.980ct loose stone Sale price¥188,000

Aquamarine 9.00ct loose Sale price¥148,000

[On sale at 22:00 on 4/19] Brazilian bicolor pink euclase 0.310ct loose stone, Nikko Kan Sale price¥128,000

Fire opal 52.470ct loose Sale price¥69,800

【甲州貴石切子】ティンカーベルクォーツ（ピンクファイヤークォーツ） 5.560ctルース

[On sale from 10pm on 5/18] [Koshu Precious Stone Cut] Brazilian Tinkerbell Quartz (Pink Fire Quartz) 5.560ct Loose Patch Sale price¥55,800

【ダンデライオンカット】カラーシフトアメジスト 12.5mm/6.639ct《コラボ》ルース(5枚花びら）ワッペン付

[Dandelion cut] Color shift amethyst 12.5mm/6.639ct 《Collaboration》 Loose (5 petals) Patch included Sale price¥55,800

【甲州貴石切子】アフガニスタン産クンツァイト 4.630ctルース《コラボ》ワッペン

[Koshu Precious Stone Cutting] Afghanistan Kunzite 4.630ct Loose Stone [Collaboration] Patch Sale price¥49,800

【甲州貴石切子】アフガニスタン産クンツァイト 7.040ctルース《コラボ》ワッペン

[Koshu Precious Stone Cutting] Afghanistan Kunzite 7.040ct Loose Stone [Collaboration] Patch Sale price¥49,800

[On sale from 10pm on 4/28] [Koshu Precious Stone Cut] Purple Scapolite from Tanzania 2.01ct loose patch Sale price¥45,800

[On sale from 10pm on 5/9] [Koshu Precious Stone Cut] Ludwigite in Peridot 2.510ct Loose Stone [Collaboration] Patch Sale price¥39,800

[On sale from 10pm on 5/4] [Koshu Precious Stones Plusthree] Madagascar Apatite 1.990ct Loose Stone [Collaboration] Patch Sale price¥39,800

【甲州貴石切子】ティンカーベルクォーツ（ピンクファイヤークォーツ） 5.540ctルース

[On sale from 10pm on 5/4] [Koshu Precious Stone Cut] Brazilian Tinkerbell Quartz (Pink Fire Quartz) 5.540ct Loose Stone [Collaboration] Patch Sale price¥39,800

[On sale from 10pm on 4/21] [Koshu Precious Stone Cutting] Australian Prehnite 3.090ct [Collaboration] Loose Patch Sale price¥39,800

【甲州貴石切子plusthree】オレゴンサンストーン 2.670ctルース《コラボ》す。宝石鑑定士が運営しています。

[On sale from 10pm on 4/19] [Koshu Precious Stones Plusthree] 2.670ct Oregon Sunstone Loose Stone from the USA [Collaboration] Patch Sale price¥39,800

[On sale from 10pm on 5/4] [Koshu Precious Stones] Brazilian Tinkerbell Quartz 3.790ct Loose Stone [Collaboration] Patch Sale price¥35,800

Rough diamond (makeable) 0.353ct loose Sale price¥33,800

[Koshu Precious Stones Cut] Brazilian Rutile Quartz (Rutile-Rated Quartz) 2.270ct Loose Patch Sale price¥29,800

American Benitoite 0.099ct loose stone (princess cut) Sale price¥29,800

[On sale from 10pm on 5/1] [Koshu Precious Stones Plusthree] Sri Lankan Hessonite Garnet 0.99ct Loose Irodori [Collaboration] Patch Sale price¥25,800

Russian Demantoid Garnet (Horsetail) 3.0mm/0.145ct Loose Stone Sale price¥25,800

White sapphire 0.418ct loose Sale price¥16,800

Afghanite 0.210ct loose Sale price¥8,800

Fluorite 1.420ct loose stone Sale price¥6,980

Cornerpine 0.890ct rough stone Sale price¥5,980

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Non-Oil Emerald 1.76ct Loose GIA

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Burmese peridot 10.306ct loose

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[Kikyou Cut] Iris Quartz 31.670ct《Mr. Yukio Shimizu, Representative of Shimizu Precious Stones》 Patch included

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Pigeon blood ruby 0.950ct loose AIGS

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Burmese pigeon blood ruby 1.340ct loose GRS

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【桔梗カット】ロッククリスタル 19.590ctルース《シミズ貴石代表・清水幸雄氏》ワッペン付

[Kikyo Cut] Rock Crystal 19.590ct Loose (Mr. Yukio Shimizu, Representative of Shimizu Precious Stones) Patch Included

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[Koshu Precious Stone Kiriko] Bicolor Amethyst 14.320ct Loose with Patch

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【12534202掲載】非加熱ブラジル産パライバトルマリン 0.110ctルース

Unheated Brazilian Paraiba tourmaline 0.110ct loose AIGS

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Royal blue sapphire 1.02ct loose AIGS

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Padparadscha sapphire 0.676ct loose medium treasure book

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Colombian Euclase 3.68ct loose

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[Kikyo Cut] Citrine 7.620ct Loose《Mr. Yukio Shimizu, Representative of Shimizu Precious Stones》 Patch included

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【桔梗カット】ロッククリスタル 15.750ctルース《シミズ貴石代表・清水幸雄氏》ワッペン付

[Kikyo Cut] Rock Crystal 15.750ct Loose《Mr. Yukio Shimizu, Representative of Shimizu Precious Stones》 Patch included

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[Koshu Precious Stone Kiriko] Blue Topaz 27.540ct Loose with Patch

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Royal blue sapphire 1.01ct loose AIGS

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Padparadscha sapphire 0.603ct loose medium treasure book

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【甲州貴石切子】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） 2.760ctルース《6月誕生石》

[Koshu Precious Stone Kiriko] Andesine Labradorite (commonly known as Rainbow Moonstone) 2.760ct Ruth《June Birthstone》

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Alexandrite from Brazil 0.214ct Ruth Japanese German edition

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[Kikyo Cut] Green Quartz 6.550ct Loose《Mr. Yukio Shimizu, Representative of Shimizu Precious Stones》 Patch included

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【甲州貴石切子】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） 1.970ctルースワッペン付

[Koshu Precious Stone Kiriko] Andesine Labradorite (commonly known as Blue Moonstone) 1.970ct loose with emblem

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