Gemstones that exhibit a cat's eye effect

When exposed to light, a cat's eye gemstone reveals a single ray of light in the middle, just like a cat's eye. This phenomenon is called chatoyancy or cat's eye effect, and is said to be caused by the inclusion of tube-shaped inclusions inside. It is often cut into a dome-shaped cabochon to make the cat's eye effect more visible.

Karatz GemMagazine
" Cat's Eye Jewel "

[On sale 3/23 at 10pm] Indian Alexandrite Cat's Eye 0.449ct Loose Stone Sale price¥9,800

[On sale 3/13 at 22:00] Madagascar Petzotite Cat's Eye 0.323ct Loose Stone Sale price¥22,800

コロンビア産エメラルドキャッツアイ1石ルース（平均0.35ct)《初めての方向け》

Colombian emerald cat's eye 1 stone loose (average 0.35ct)《For first-time users》《Multiple purchase discount available》 Sale price¥12,800

Limited to 12 stones Tanzanian Milky Opal Cat's Eye (7.5 x 5.5 mm) Multiple purchase discounts available Sale price¥3,980

[On sale 3/3 at 22:00] Madagascar Pezzottaite Cat's Eye 0.393ct Loose Stone Sale price¥29,800

[On sale 3/2 at 10pm] Indian Alexandrite Cat's Eye 0.643ct Loose Stone Sale price¥18,800

[On sale at 10pm on 2/26] Brazilian cat's eye emerald 6.080ct loose stone, Japan-Germany Sale price¥298,000

[E_27 Yurakucho Marui Take-out] Brazilian Chrysoberyl Cat's Eye 1.356ct Loose Stone Sale price¥6,980

Brazilian Rubellite Cat's Eye 1.484ct Loose Stone Sale price¥39,800

Brazilian Alexandrite Cat's Eye 3.3mm/0.219ct Loose Stone (Hemachita Mine) Sale price¥32,800

[E_27 Yurakucho Marui Takeout] Brazilian Alexandrite Cat's Eye 3.4mm/0.223ct Loose Stone (Hematita Mine) Sale price¥35,800

Brazilian Alexandrite Cat's Eye 3.3mm/0.219ct Loose Stone (Hemachita Mine) Sale price¥35,800

Brazilian Alexandrite Cat's Eye 3.3mm/0.242ct Loose Stone (Hemachita Mine) Sale price¥24,800

Brazilian Alexandrite Cat's Eye 3.3mm/0.260ct Loose Stone (Hemachita Mine) Sale price¥39,800

Sri Lankan Chrysoberyl Cat's Eye 0.532ct Loose Stone Sale price¥5,980

[E_27 Yurakucho Marui Take-out] Indian Alexandrite Cat's Eye 0.621ct Loose Stone Sale price¥18,800

Sri Lankan Chrysoberyl Cat's Eye 0.519ct Loose Stone Sale price¥8,800

Indian Alexandrite Cat's Eye 0.787ct Loose Stone Sale price¥25,800

Indian Alexandrite Cat's Eye 0.228ct Loose Stone Sale price¥8,800

【KEN氏】トルマリンキャッツアイ 0.890ctルース - カラッツSTORE

Brazilian Tourmaline Cat's Eye 0.890ct Loose Stone Sale price¥2,980

【KEN氏】トルマリンキャッツアイ 0.910ctルース - カラッツSTORE

Brazilian tourmaline cat's eye 0.910ct loose stone Sale price¥3,980

Brazilian bicolor tourmaline cat's eye 22.056ct loose stone Sale price¥198,000

Pt900/K18ブラックオパールキャッツアイ0.736 ペンダント（ネックレス）

Pt900/K18 Australian Black Opal Cat's Eye 0.736ct Diamond Pendant (Necklace) Chuho Sale price¥258,000

[E_27 Yurakucho Marui Take-out] K18YG Sri Lankan chrysoberyl cat's eye 0.69ct chrysoprase ring Sale price¥79,800

[E_27 Yurakucho Marui Take-out] Colombian emerald cat's eye 0.690ct loose Sale price¥39,800

Brazilian Rubellite Cat's Eye 1.180ct Loose Stone Sale price¥29,800

[E_27 Yurakucho Marui Take-out] K18YG Alexandrite Cat's Eye 0.515ct Alexandrite Ring Sale price¥69,800

Indian Alexandrite Cat's Eye 0.528ct Loose Stone Sale price¥15,800

Limited to 9 stones: 1 Indian Sillimanite Cat's Eye Loose Stone (8 x 6 mm) Multiple purchase discounts available Sale price¥3,980

Limited to 8 stones: 1 Indian Sillimanite Cat's Eye Loose Stone (9 x 7 mm) Multiple purchase discounts available Sale price¥4,980

Tanzanian Kornerupine Cat's Eye 0.622ct Loose Stone Sale price¥4,980

Sri Lankan Chrysoberyl Cat's Eye 1.514ct Loose Stone Sale price¥6,980

Sri Lankan Chrysoberyl Cat's Eye 1.074ct Loose Stone Sale price¥5,980

Sri Lankan Chrysoberyl Cat's Eye 1.355ct Loose Stone Sale price¥6,980

Tanzanian Kornerupine Cat's Eye 1.608ct Loose Stone Sale price¥6,980

Indian Alexandrite Cat's Eye 0.206ct Loose Stone Sale price¥6,980

[12552038] Beryl Cat's Eye 32.703ct Loose Stone Sale price¥98,000

[E_27 Yurakucho Marui Take-out] Sri Lankan Chrysoberyl Cat's Eye 1.169ct Loose Sale price¥28,800

[E_27 Yurakucho Marui Take-out] Sri Lankan Chrysoberyl Cat's Eye 0.556ct Loose Sale price¥15,800

Indian Alexandrite Cat's Eye 0.270ct Loose Stone Sale price¥9,800

Colombian emerald cat's eye 0.138ct loose Sale price¥17,800

[E_27 Yurakucho Marui Take-out] Indian Alexandrite Cat's Eye 0.186ct Loose Stone Sale price¥6,980

ロシア産デマントイドガーネットキャッツアイ（ホーステール認む） 0.200ctルース

Russian Demantoid Garnet Cat's Eye (Horsetail Recognized) 0.200ct Loose Sale price¥29,800

Chrysoberyl cat's eye 1.088ct loose stone Sale price¥8,800

Chrysoberyl cat's eye 0.495ct loose stone Sale price¥8,800

Indian Alexandrite Cat's Eye 0.373ct Loose Stone Sale price¥8,800

Tanzanian Kornerupine Cat's Eye 1.331ct Loose Stone Sale price¥7,980

Tanzanian Kornerupine Cat's Eye 0.986ct 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.

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