Custom Cut

[On sale at 10pm on 10/26] Sri Lankan yellow sapphire 0.593ct loose stone Sale price¥15,800

[On sale at 10pm on 10/26] Sri Lankan yellow sapphire 0.299ct loose stone Sale price¥12,800

[On sale from 10/26 at 10pm] Sri Lankan yellow sapphire 0.261ct loose stone Sale price¥12,800

[On sale at 10pm on 10/24] Green beryl 0.078ct loose stone Sale price¥5,980

[On sale from 10/31 at 22:00] Myanmar purple spinel 0.519ct loose stone Sale price¥9,800

ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 4.807ctルース

[On sale from 10/20 at 10pm] Brazilian Tinkerbell Quartz (Pink Fire Quartz) 4.807ct loose stone Sale price¥15,800

[On sale from 10/20 at 10pm] [Cat cut] Pink tourmaline (bicolor) 5mm/0.459ct loose stone Sale price¥7,980

【甲州貴石切子】ルチルクォーツ（ルチルレイテッドクォーツ） 12.860ctルース《コラボ》ワッペン

[On sale from 10/21 at 10pm] [Koshu Precious Stone Cut] Brazilian Rutile Quartz (Rutile-Rated Quartz) 12.860ct Loose Stone [Collaboration] Patch Sale price¥59,800

【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

[On sale from 10/21 at 10pm] [Koshu Precious Stone Cutting] Kunzite from Afghanistan 7.040ct loose stone [Collaboration] patch Sale price¥49,800

【甲州貴石切子】ブラッドショットアイオライトサンストーン 2.450ctルース《コラボ》ワッペン付

[On sale from 10/20 at 10pm] [Koshu Precious Stones Cut] Indian Bloodshot Iolite Sunstone 2.450ct Loose Stone [Collaboration] Patch Sale price¥55,800

[On sale at 10pm on 10/19] 1.306ct loose Oregon sunstone from the US Sale price¥12,800

[On sale at 10pm on 10/19] Brazilian Ametrine 1.56ct loose stone Sale price¥9,800

[On sale at 10pm on 10/22] Argentine Inca Rose 5.022ct loose stone Sale price¥12,800

[On sale at 10pm on 10/22] Australian Opal 1.916ct Loose Sale price¥8,800

[On sale at 10pm on 10/22] Australian Opal 3.639ct Loose Sale price¥14,800

[On sale at 10pm on 10/22] Cambodian colorless zircon 0.508ct loose stone Sale price¥8,800

[On sale at 10pm on 10/22] Cambodian colorless zircon 0.512ct loose stone Sale price¥8,800

[On sale 11/2 at 10pm] Cambodian colorless zircon 0.533ct loose stone Sale price¥5,980

[On sale 11/2 22:00] Cambodian colorless zircon 0.309ct loose stone Sale price¥4,980

[On sale at 10pm on 10/23] Mexican Cantera Opal 1.794ct loose stone Sale price¥8,800

[On sale at 10pm on 10/18] Mexican Cantera Opal 2.982ct loose stone Sale price¥14,800

[On sale at 10pm on 10/18] Mexican Cantera Opal 2.219ct loose stone Sale price¥9,800

[On sale at 10pm on 10/18] Mexican Cantera Opal 1.534ct loose stone Sale price¥8,800

[On sale at 10pm on 10/18] Mexican Cantera Opal 4.542ct loose stone Sale price¥12,800

[On sale 10/23 22:00] Mexican Cantera Opal 11.105ct Loose Sale price¥12,800

ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 3.920ctルース

Brazilian Tinkerbell Quartz (Pink Fire Quartz) 3.920ct Loose Stone Sale price¥6,980

タンザニア産アンデシン・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） 0.605ctルース

[On sale from 10/11 at 22:00] Tanzanian Andesine Labradorite Moonstone (also known as Rainbow Moonstone) 0.605ct loose stone Sale price¥15,800

[On sale at 10pm on 14/10] Afghanistan Green Tourmaline 11.5mm/5.854ct Loose Sale price¥198,000

ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 4.569ctルース

Brazilian Tinkerbell Quartz (Pink Fire Quartz) 4.569ct loose Sale price¥12,800

[On sale at 10pm on 14/10] Australian Chrysoprase 11.3mm/5.280ct loose stone Sale price¥12,800

[On sale at 10pm on 14/10] Andesine Labradorite (also known as Blue Moonstone) 1.096ct loose stone Sale price¥45,800

[On sale at 10pm on 14/10] Andesine Labradorite (also known as Blue Moonstone) 0.949ct loose stone Sale price¥45,800

[On sale 11/1 22:00] Yellow Diamond (Sugarloaf Cut) 0.348ct Loose Sale price¥39,800

[On sale 11/9 at 22:00] Tanzanian rhodolite garnet 10.608ct loose stone Sale price¥98,000

[On sale at 10/14 22:00] Brazilian dendritic quartz 3.650ct loose stone Sale price¥5,980

[On sale at 10pm on 10/17] Brazilian Limonite in Topaz 3.399ct loose stone Sale price¥8,800

【カメリアカット】カラーシフトアメジスト《コラボ》 18mm/21.330ctルースワッペン

[Camellia Cut] Brazilian Color Shift Amethyst [Collaboration] 18mm/21.330ct Loose Patch Sale price¥69,800

[Camellia Cut] Orange Moonstone 19mm/23.890ct Loose Sale price¥39,800

[Camellia Cut] Rose Quartz 12mm/5.530ct {Collaboration} Loose Patch Sale price¥19,800

Tanzanian Mandarin Garnet 0.383ct Loose Stone Sale price¥19,800

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） 1.416ctルース

Rainbow garnet (andradite garnet) 1.416ct loose from Tenkawa Village, Nara Prefecture Sale price¥8,800

Synthetic Moissanite 12.5mm/6.579ct Loose Stone Sale price¥29,800

[Koshu Precious Stones plusthree] Peridot 1.644ct Loose Stone Patch Sale price¥49,800

Brazilian Imperial Topaz 0.764ct Loose Stone Sale price¥19,800

Brazilian bicolor tourmaline 0.845ct loose stone Sale price¥15,800

[Sakura Shape] Blue Beryl (Mashish Beryl) 7.0mm/1.153ct {Collaboration} Loose Patch Sale price¥45,800

[Sakura Shape] Cambodian Blue Zircon (Ratanakiri Blue) 6.3mm/1.473ct {Collaboration} Loose Patch Sale price¥49,800

Indian Moss Agate 0.755ct Loose Stone Sale price¥7,980

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