green/green gems

There are a variety of green and green-toned gemstones, including emerald, jade, peridot, demantoid garnet, diopside, and green tourmaline. Even if the colors are similar, highly transparent gemstones and opaque gemstones give a very different impression. The atmosphere also varies depending on the saturation, brightness, and cut.

Karatz Gem Magazine
" 10 Green Gems "

[On sale at 10pm on 10/22] Mongolian color change andesine 0.797ct loose stone Sale price¥14,800

ブラジル産パライバトルマリン 0.167ctルース（CuO:1.1%、MnO:3.6%）

[On sale from 10/22 at 10pm] Brazilian Paraiba Tourmaline 0.167ct loose stone (CuO: 1.1%, MnO: 3.6%) Sale price¥69,800

[On sale at 10pm on 10/21] Brazilian bicolor tourmaline 16.088ct loose stone (tricolor) Nikkei Sale price¥298,000

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[On sale at 10pm on 10/20] Brazilian bicolor tourmaline 2.020ct loose stone

[On sale from 10/21 at 10pm] American Peridot 7.2mm/1.530ct Loose Sale price¥14,800

ブラジル産パライバトルマリン 0.240ctルース（CuO:1.5%、MnO:1.8%）

[On sale from 10/20 at 10pm] Brazilian Paraiba Tourmaline 0.240ct loose stone (CuO: 1.5%, MnO: 1.8%) Sale price¥45,800

[On sale at 10pm on 10/21] Colombian emerald 1.020ct rough stone Sale price¥29,800

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[On sale at 10pm on 10/21] Colombian emerald rough stone 3.580ct

[On sale at 10pm on 10/20] Russian oil-free emerald 0.640ct loose GIA Sale price¥198,000

ロシア産デマントイドガーネット（ホーステール認む） 3mm/0.165ctルース

[On sale at 10pm on 10/20] Russian Demantoid Garnet (Horsetail certified) 3mm/0.165ct loose stone Sale price¥45,800

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[On sale at 10pm on 10/20] Non-oil emerald 1.76ct loose GIA

[On sale at 10pm on 10/31] Pakistani emerald 0.341ct loose stone Sale price¥39,800

[On sale at 10pm on November 1st] Pakistani emerald 0.436ct loose stone Sale price¥49,800

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[On sale at 10pm on 10/19] Picture agate 9.088ct loose stone

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[On sale at 10pm on 10/19] Picture agate 7.292ct loose stone

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[On sale at 10pm on 10/20] Bicolor tourmaline 1.616ct loose stone

Madagascar Oregon Sunstone 4mm/0.239ct Loose Stone Sale price¥7,980

[On sale at 10pm on 14th October] Oregon Sunstone from the US 4.0mm/0.206ct loose stone Sale price¥8,800

[On sale at 10pm on 11/10] 1.892ct Mongolian color change andesine loose stone Sale price¥29,800

[On sale 10/13 at 22:00] Brazilian bicolor tourmaline cat's eye 22.056ct loose stone Sale price¥198,000

[On sale at 10pm on 14th October] 3.429ct loose bi-color tourmaline from Congo Sale price¥128,000

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

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

[On sale at 10pm on 10/23] 0.527ct Oregon Sunstone loose stone (princess cut) from the US Sale price¥12,800

[On sale at 10pm on 10/16] Oregon Sunstone from the United States 5.0mm/0.460ct loose stone Sale price¥19,800

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[On sale 11/2 at 10pm] Russian Alexandrite 0.160ct loose stone

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[On sale at 10pm on 10/20] 0.838ct Paraiba Tourmaline loose stone from Mozambique

[On sale at 10pm on 10/17] Colombian Trapiche Emerald 0.629ct loose stone Sale price¥34,800

coming soon

[12555255] 0.875ct loose kornerupine from Tanzania Sale price¥158,000

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Grandidierite from Madagascar 2.4mm/0.058ct loose stone

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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） 0.610ctルース

Russian demantoid garnet cat's eye (horsetail recognized) 2mm/0.061ct loose

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[On sale 10/7 at 22:00] Tanzanian Kornerupine 3.0mm/0.111ct loose stone

Tibetan bicolor andesine 1.542ct loose stone Sale price¥14,800

Colombian Trapiche Emerald 1.494ct Loose Sale price¥69,800

非加熱ブラジル産パライバトルマリン 0.044ctルース（CuO:1.6%、MnO:2.0%）

Unheated Brazilian Paraiba Tourmaline 0.044ct loose stone (CuO: 1.6%, MnO: 2.0%) Sale price¥59,800

非加熱ブラジル産パライバトルマリン 0.068ctルース（CuO:1.4%、MnO:2.3%）

Unheated Brazilian Paraiba Tourmaline 0.068ct loose stone (CuO: 1.4%, MnO: 2.3%) Sale price¥69,800

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

ノンオイルエメラルド 1.030ctルースグベリングベリン（Gübelin）鑑別書

Non-Oil Emerald 1.030ct Loose Gübelin Gübelin Certificate Sale price¥698,000

Colombian emerald 1.321ct loose stone (partly trapiche emerald) Sale price¥98,000

Brazilian emerald 1844ct rough stone Sale price¥39,800

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

Indian Moss Agate 0.663ct Loose Stone Sale price¥8,800

Indian Moss Agate 0.860ct Loose Stone Sale price¥8,800

Indian Moss Agate 0.943ct Loose Stone Sale price¥8,800

Indian Moss Agate 1.182ct Loose Stone Sale price¥11,800

Indian Moss Agate 1.434ct Loose Stone Sale price¥12,800

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