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甲州貴石切子

Koshu precious stone cut glass

Koshu Precious Stone Kiriko was developed by applying cutting techniques such as Edo Kiriko and Satsuma Kiriko. It was born from a collaboration between Yoichi Fukazawa of Jewelry Craft Fukazawa and Yukio Shimizu of Shimizu Precious Stone. Koshu Precious Stone Kiriko is made using a cutting method that is a world first, with Fukazawa in charge of the cut surfaces and Shimizu in charge of the facet surfaces. The stunning cuts, full of originality and like works of art, are combined with the individuality of the gemstones to make them truly one of a kind. There are dozens of patterns in total that combine surface cuts such as rose cuts and checkerboard cuts with several types of cut glass, and it is also possible to enjoy the luxury of collecting and arranging stones with various cuts.

Carats Gem Magazine
" Koushuu precious stone cut glass "

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【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 4.630ctルース《コラボ》 ワッペン

[On sale from 10/21 at 10pm] [Koshu Precious Stones Cut] Kunzite from Afghanistan 4.630ct loose stone [Collaboration] Patch Sale price¥49,800
【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） 2.270ctルース ワッペン

[On sale from 10/21 at 10pm] [Koshu Precious Stones Cut] Brazilian Pink Amethyst 3.71ct Loose Irodori [Collaboration] Patch Sale price¥39,800
【甲州貴石切子】ルチルレイテッドクォーツ 2.270ctルース ワッペン付

[On sale from 10/21 at 10pm] [Koshu Precious Stone Cut] Brazilian Rutile Quartz (Rutiled Quartz) 2.270ct Loose Patch Sale price¥29,800
【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
【甲州貴石切子】ミルキーアクアマリン 5.20ctルース - カラッツSTORE

[10/17 22:00 Sale] [Koshu Precious Stone Cut] Milky Aquamarine from Brazil 5.20ct Loose Irodori [Collaboration] Patch Sale price¥79,800
【甲州貴石切子plusthree】ペリドット 1.644ctルース ワッペン

[Koshu Precious Stones plusthree] Peridot 1.644ct Loose Stone Patch Sale price¥49,800
【甲州貴石切子plusthree】ラベンダークォーツ（スコロライト） 3.217ct《コラボ》ルース ワッペン

[Koshu Precious Stones Plusthree] Lavender Quartz (Scorolite) 3.217ct {Collaboration} Loose Patch Sale price¥39,800
【12555026掲載】ラベンダークォーツ（スコロライト） 3.111ctルース

[12555026] Lavender quartz (scorolite) 3.111ct loose stone Sale price¥29,800
【12555025掲載】ローズクォーツ 2.679ctルース

[12555025] Rose quartz 2.679ct loose stone Sale price¥29,800
【甲州貴石切子plusthree】アメジスト 4.306ctルース ワッペン

[Koshu Precious Stones plusthree] Amethyst 4.306ct Loose Stone Patch Sale price¥25,800
【甲州貴石切子pluethree】イエローベリル 0.880ctルース

[Koshu Precious Stone Cutting Pluethree] Yellow Beryl 0.880ct Loose Sale price¥29,800
【甲州貴石切子plusthree】ロッククリスタル 15mm/10.059ctルース《昴×灯》(ダブル切子タイプ) ワッペン

[Koshu Precious Stone Cut Plusthree] Rock Crystal 15mm/10.059ct Loose Stone "Subaru x Hikaru" (Double Cut Type) Patch Sale price¥45,800
【12548911掲載】ペリドット 0.792ctルース

[Koshu Precious Stone Cut Plusthree] Peridot 6mm/0.792ct Loose Patch Sale price¥24,800
【12552579掲載】ティンカーベルクォーツ（ピンクファイヤークォーツ） 1.255ctルース

[Koshu Precious Stone Cut] Brazilian Tinkerbell Quartz (Pink Fire Quartz) 1.255ct {Collaboration} Loose Patch Sale price¥38,800
【甲州貴石切子】スコロライト 6.039ctルース ワッペン

[Koshu Precious Stone Cut] Scololite 6.039ct Loose Stone Patch Sale price¥69,800
【甲州貴石切子plusthree】アメトリン 5.170ctルース ワッペン

[Koshu Precious Stones Plusthree] Ametrine 5.170ct Loose Patch Sale price¥45,800
【12552578掲載】ティンカーベルクォーツ（ピンクファイヤークォーツ） 1.082ctルース

[Koshu Precious Stone Cut] Brazilian Tinkerbell Quartz (Pink Fire Quartz) 1.082ct Loose Patch Sale price¥35,800
【甲州貴石切子pluesthree】合成モアッサナイト 10mm/4.198ctルース ワッペン

[Koshu Precious Stone Cutting Plusthree] Synthetic Moissanite 10mm/4.198ct Loose Patch Sale price¥69,800
【甲州貴石切子plusthree】メキシコ産ファイアオパール 4.633ctルース《コラボ》 ワッペン

[Koshu Precious Stones plusthree] Mexican Fire Opal 4.633ct Loose Stone [Collaboration] Patch Sale price¥59,800
【甲州貴石切子plusthree】スイスブルートパーズ 21.690ctルース《コラボ》ワッペン

[Koshu Precious Stones plusthree] Swiss Blue Topaz 21.690ct Loose Stone [Collaboration] Patch Sale price¥69,800
【甲州貴石切子plusthree】メキシコ産ファイアオパール 3.056ctルース　ワッペン

[Koshu Precious Stones plusthree] Mexican Fire Opal 3.056ct Loose Stone [Collaboration] Patch Sale price¥69,800
アメトリン 7.238ctルース

[Koshu Precious Stones plusthree] Ametrine 7.238ct loose stone with patch Sale price¥39,800
ローズクォーツ 7.293ctルース

[Koshu Precious Stones Plusthree] Rose Quartz 7.293ct Loose Sale price¥29,800
シトリン 5.121ctルース

[Koshu Precious Stones plusthree] Citrine 5.121ct Loose Sale price¥39,800
[Koshu Precious Stones Plusthree] Tibetan Andesine 7.873ct [Collaboration] Loose Stone (Color Change Andesine)

[Koshu Precious Stones Plusthree] Tibetan Andesine 7.873ct [Collaboration] Loose Stone (Color Change Andesine) Sale price¥39,800
ウォーターメロントルマリン 4.731ctルース

[Koshu Precious Stones plusthree] Watermelon Tourmaline 4.731ct Loose Stone Sale price¥39,800
ラベンダークォーツ（スコロライト） 1.761ctルース

[Koshu Precious Stones Plusthree] Lavender Quartz (Scorolite) 1.761ct Loose Stone Sale price¥39,800
【甲州貴石切子plusthree】スカイブルートパーズ 6mm/0.988ctルース ワッペン付

[Koshu Precious Stones Plusthree] Sky Blue Topaz 6mm/0.988ct Loose Stone with Patch Sale price¥25,800
【甲州貴石切子plusthree】グリーンクォーツ 6mm/0.714ctルース ワッペン付

[Koshu Precious Stones Plusthree] Green Quartz 6mm/0.714ct Loose Stone with Patch Sale price¥25,800
コロンビア産エメラルド 2.018ctルース

[Koshu precious stone cutter pluethree] Colombian emerald 2.018ct loose Sale price¥98,000
グリーンクォーツ 0.743ctルース

[Koshu Precious Stones plusthree] Green Quartz 6mm/0.743ct Loose with Patch Sale price¥25,800
【甲州貴石切子plusthree】ダルメシアンクォーツ 70.155ctルース《コラボ》 ワッペン付

[Koshu precious stone Kiriko plusthree] Dalmatian quartz 70.155ct loose "Collaboration" with patch Sale price¥59,800
【甲州貴石切子plusthree】モルダバイト 1.511ctルース ワッペン付

[Koshu precious stone Kiriko plusthree] Moldavite 1.511ct loose with patch Sale price¥39,800
スモーキークォーツ 0.691ctルース

[Koshu precious stone Kiriko plusthree] Smoky quartz 6mm/0.691ct loose with patch Sale price¥25,800
デュモルチェライトインクォーツ 10.068ctルース

[Koshu Precious Stone Kiriko] Dumortierite in Quartz 10.068ct loose with emblem Sale price¥69,800
ブラジル産カラーシフトアメジスト 0.955ctルース

[Koshu Precious Stone Kiriko plusthree] Color shift amethyst from Brazil 0.955ct loose with patch Sale price¥29,800
【12546889掲載】スイスブルートパーズ 4.529ctルース

[Koshu Precious Stone Kiriko plusthree] Swiss Blue Topaz <Akatsuki> 4.529ct loose Sale price¥35,800
【甲州貴石切子plus three】スイスブルートパーズ＜彩＞ 4.842ctルース

[Koshu precious stone Kiriko plus three] Swiss blue topaz <Aya> 4.842ct loose Sale price¥35,800
ルベライト 1.809ctルース

[Koshu precious stone Kiriko plusthree] Rubellite 1.809ct loose Sale price¥39,800
グリーントルマリン 1.880ctルース

[Koshu precious stone Kiriko plusthree] Green tourmaline 1.880ct loose Sale price¥35,800
グリーントルマリン 3.322ctルース

[Koshu precious stone Kiriko plusthree] Green tourmaline 3.322ct loose Sale price¥39,800
スイスブルートパーズ 26.821ctルース

[Koshu precious stone Kiriko plusthree] Swiss blue topaz 26.821ct loose Sale price¥59,800
【甲州貴石切子plusthree】パイライトインクォーツ 12.164ctルース ワッペン付

[Koshu precious stone Kiriko plusthree] Pyrite in quartz 12.164ct loose with patch Sale price¥29,800
【甲州貴石切子】モルガナイト 14.931ct《コラボ》ルース ワッペン付

[Koshu Precious Stone Kiriko] Morganite 14.931ct《Collaboration》Loose with emblem Sale price¥98,000
【甲州貴石切子plusthree】ローズクォーツ 10.284ctルース《コラボ》 ワッペン付

[Koshu precious stone Kiriko plusthree] Rose quartz 10.284ct loose "Collaboration" with patch Sale price¥29,800
【甲州貴石切子plusthree】レピドクロサイトインクォーツ 1.973ct《コラボ》ルース ワッペン付

[Koshu precious stone Kiriko plusthree] Lepidocrocite in quartz 1.973ct《Collaboration》Loose with emblem Sale price¥45,800

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