gray/gray gemstones

Gemstones that exhibit gray or gray hues include gray diamonds, gray spinels (platinum spinels), gray sapphires, and other gemstones that contain gray inclusions, such as platinum rutilated quartz. It has a chic and calm atmosphere, and gives off a unique charm that is different from jewelry with gorgeous colors.

[On sale from 10pm on 5/20] 0.931ct loose labradorite from Madagascar Sale price¥8,800

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.227ctルース

Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.227ct Loose Stone Sale price¥18,800

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.124ctルース

Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.124ct Loose Stone Sale price¥8,800

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.139ctルース

Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.139ct Loose Stone Sale price¥9,800

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.192ctルース

Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.192ct Loose Stone Sale price¥13,800

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.272ctルース

Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.272ct Loose Stone Sale price¥19,800

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.179ctルース

Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.179ct Loose Stone Sale price¥12,800

Sri Lankan Musgravite 0.389ct Loose Stone (Tubular Inclusions) Nikkei Sale price¥398,000

Sri Lankan Silky Sapphire 1.079ct Loose Sale price¥12,800

Oregon Sunstone from the United States 1.198ct loose stone Sale price¥8,800

Brazilian Mica in Quartz (Mica in Quartz) 0.990ct Loose Sale price¥6,980

Brazilian Mica in Quartz (Mica in Quartz) 0.701ct Loose Stone Sale price¥6,980

Brazilian Mica in Quartz (Mica in Quartz) 1.009ct Loose Stone Sale price¥9,800

Sri Lankan Blue Sapphire 0.344ct Loose Sale price¥12,800

マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.824ctルース

Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.824ct Loose Stone Sale price¥39,800

Brazilian Pink Tourmaline 0.331ct Loose Stone Sale price¥8,800

Australian white opal 1.830ct loose Sale price¥9,800

Brazilian platinum rutilated quartz (brookite in quartz) 5.062ct loose stone Sale price¥12,800

Brazilian platinum rutilated quartz (brookite in quartz) 5.010ct loose stone Sale price¥18,800

Burmese gray spinel 0.827ct loose stone Sale price¥28,800

Tanzania gray spinel 0.844ct loose stone Sale price¥18,800

Tanzanian grey spinel 5.1mm/0.605ct loose stone Sale price¥12,800

Indian Moonstone 10mm/2.720ct Loose Sale price¥9,800

Silky sapphire from Sri Lanka 0.975ct loose Sale price¥8,800

Brazilian Quartz (Striped Quartz) 15.019ct Loose Patch Sale price¥8,800

Brazilian bicolor tourmaline 1.953ct loose stone Sale price¥18,800

Myanmar spinel 0.402ct loose stone Sale price¥12,800

Tanzanian Blue Spinel 1.028ct Loose Stone Sale price¥39,800

Australian black opal 0.386ct loose stone Sale price¥39,800

【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） 12.860ctルース《コラボ》ワッペン

[Koshu Precious Stones Cut] Brazilian Rutile Quartz (Rutile-Rated Quartz) 12.860ct Loose Stone [Collaboration] Patch Sale price¥59,800

Brazilian bicolor tourmaline 0.326ct loose stone Sale price¥8,800

Grace Spinel 0.384ct Loose Sale price¥9,800

Sri Lankan Silky Sapphire 6.4mm/1.036ct Loose Stone Sale price¥12,800

Silky Sapphire from Sri Lanka 1.716ct loose stone Sale price¥14,800

Myanmar Taaffeite 6.9mm/1.408ct loose stone Sale price¥98,000

Ethiopian Opal 5.2mm/0.688ct Loose (Sphere) Sale price¥6,980

Indian Moonstone 1.946ct Loose Sale price¥14,800

Synthetic Moissanite 5.8mm/0.678ct Loose Stone Sale price¥9,800

Synthetic Moissanite 5.8mm/0.682ct Loose Stone Sale price¥9,800

Brazilian Green Tourmaline 0.825ct Loose Stone Sale price¥9,800

Australian black opal 3.242ct loose stone Sale price¥69,800

Australian black opal 3.322ct loose stone Sale price¥98,000

Australian black opal 0.357ct loose stone Sale price¥8,800

[12551529] Australian black opal 2.233ct loose stone Sale price¥69,800

Myanmar Violet Spinel 0.426ct Loose Sale price¥8,800

【スタッフセレクション】【KEN氏】ミャンマー産スピネル 0.482ctルース（セミオーダーメイドセッ

[Staff Selection] [Mr. KEN] Myanmar Spinel 0.482ct Loose (Semi-Custom Made Set) Sale price¥47,800

[Cat cut] Brazilian dendritic agate 0.774ct loose stone Sale price¥8,800

[Cat cut] Brazilian dendritic agate 0.744ct loose stone Sale price¥8,800

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