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oil-free emerald

Due to their nature, emeralds have many internal scratches and inclusions, so they are generally impregnated with a clarifying agent.
Oil-free emeralds are emeralds that do not require impregnation and are beautiful even when untreated, and are highly valued and rare.
Emerald is the birthstone of May.

Karatz GemMagazine
" Non-oil emerald "

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コロンビア産ノンオイルエメラルド 0.290ctルースGIA

Colombian oil-free emerald 0.290ct loose GIA Sale price¥188,000
[On sale November 3rd at 10pm] [Limited to 14 stones] One loose Russian oil-free emerald (2.1mm, square cut) [Multiple purchase discounts available]

[On sale November 3rd at 10pm] [Limited to 14 stones] One loose Russian oil-free emerald (2.1mm, square cut) [Multiple purchase discounts available] Sale price¥5,980
Limited to 7 stones: One loose, oil-free Russian emerald (1.5-1.6mm, step cut) [Multiple purchase discounts available]

Limited to 7 stones: One loose, oil-free Russian emerald (1.5-1.6mm, step cut) [Multiple purchase discounts available] Sale price¥5,980
コロンビア産ノンオイルエメラルド 0.220ctルース

[On Sale 11/23 10pm] Colombian Oil-Free Emerald 0.220ct Loose GIA Sale price¥298,000
0.223ct loose Russian oil-free emerald

0.223ct loose Russian oil-free emerald Sale price¥25,800
ロシア産ノンオイルエメラルド 0.570ctルース

Russian oil-free emerald 0.570ct loose stone GIA Sale price¥298,000
Afghanistan Oil-Free Emerald 0.100ct Loose GIA

Afghanistan Oil-Free Emerald 0.100ct Loose GIA Sale price¥98,000
0.060ct loose, oil-free emerald from Madagascar, GIA

0.060ct loose, oil-free emerald from Madagascar, GIA Sale price¥69,800
ノンオイルエメラルド 1.070ctルース グベリン鑑別書

Non-Oil Emerald 1.070ct Loose Gübelin Certificate Sale price¥698,000
ロシア産ノンオイルエメラルド 0.640ctルース GIA

Russian oil-free emerald 0.640ct loose GIA Sale price¥198,000
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
コロンビア産ノンオイルエメラルド 0.290ctルース GIA

Colombian oil-free emerald 0.290ct loose stone GIA Sale price¥198,000
ノンオイルエメラルド 1.370ctルース

Non-Oil Emerald 1.370ct Loose GIA Sale price¥1,580,000
コロンビア産ノンオイルエメラルド 0.310ctルース

Colombian oil-free emerald 0.310ct loose stone Sale price¥298,000
コロンビア産ノンオイルエメラルド 0.220ctルース

Colombian oil-free emerald 0.220ct loose GIA Sale price¥248,000
Sold out Single loose Russian oil-free emerald (1.6-1.7mm, princess cut) {Multiple purchase discounts available}

Single loose Russian oil-free emerald (1.6-1.7mm, princess cut) {Multiple purchase discounts available}

Sold out One loose, oil-free emerald from Russia (2.2mm, round cut) (Multiple purchase discounts available)

One loose, oil-free emerald from Russia (2.2mm, round cut) (Multiple purchase discounts available)

Sold out One loose, oil-free emerald from Russia (2.8mm, round cut) (Multiple purchase discounts available)

One loose, oil-free emerald from Russia (2.8mm, round cut) (Multiple purchase discounts available)
Sold out Limited to 6 stones: One loose, oil-free emerald from Russia (3.2mm, round cut) [Multiple purchase discounts available]

Limited to 6 stones: One loose, oil-free emerald from Russia (3.2mm, round cut) [Multiple purchase discounts available]
Sold out コロンビア産ノンオイルエメラルド（NONE） 0.110ctルース GIA

[Posted 12548175] Colombian oil-free emerald 0.110ct loose

Sold out コロンビア産ノンオイルエメラルド 0.535ctルース

Colombian oil-free emerald 0.535ct loose Japanese-German edition
Sold out コロンビア産ノンオイルエメラルド 3.1mm/0.10ctルース GIA

Colombian oil-free emerald 3.1mm/0.10ct loose GIA

Sold out コロンビア産ノンオイルエメラルド 3.1mm/0.10ctルース GIA

Colombian oil-free emerald 3.1mm/0.100ct loose GIA

Sold out ノンオイルエメラルド 0.430ctルース 日独鑑

Oil-free emerald 0.430ct Japanese-German identification book included

Sold out ノンオイルエメラルド 0.38ctルース GIA

Oil-free emerald 0.38ct loose GIA

Sold out ロシア産ノンオイルエメラルド 0.30ctルース GIA付

Russian oil-free emerald 0.30ct loose with GIA

Sold out 【12525386掲載】コロンビア産ノンオイルエメラルド 0.240ctルース

Colombian oil-free emerald 0.24ct loose with GIA

Sold out Colombian oil-free emerald 0.39ct loose GIA

Colombian oil-free emerald 0.39ct loose GIA

Sold out コロンビア産ノンオイルエメラルド 0.430ctルース

Colombian oil-free emerald 0.430ct loose with GIA

Sold out コロンビア産ノンオイルエメラルド 0.290ctルース

Colombian oil-free emerald 0.29ct loose with GIA

Sold out 【12523420掲載】ノンオイルエメラルド 0.200ctルース

Oil-free emerald 0.20ct loose GIA

Sold out Colombian non-oil trapiche emerald 2.00ct loose GIA

Colombian non-oil trapiche emerald 2.00ct loose GIA

coming soon [12543545 published] Non-oil emerald 0.510ct loose

[12543545 published] Non-oil emerald 0.510ct loose Sale price¥498,000
Sold out 0.212ct loose Russian emerald with no oil

0.212ct loose Russian emerald with no oil

Sold out Ethiopian oil-free emerald 0.32ct loose GIA

Ethiopian oil-free emerald 0.32ct loose GIA

Sold out ロシア産ノンオイルエメラルド 0.840ctルース GIA

[On sale from 10pm on 5/4] Russian oil-free emerald 0.84ct loose GIA
Sold out コロンビア産ノンオイルエメラルド 0.170ctルース

Colombian Oil-Free Emerald 3.5mm/0.170ct Loose GIA

Sold out ノンオイルエメラルド 0.564ctルース

Non-Oil Emerald 0.564ct Loose Stone by Nikkei
Sold out コロンビア産ノンオイルエメラルド 0.384ctルース

Colombian oil-free emerald 0.384ct loose Japanese-German edition
Sold out ノンオイルエメラルド 0.318ctルース 中宝鑑

Non-oil emerald 0.318ct loose medium hokan

Sold out ロシア産ノンオイルエメラルド 0.210ctルース

Russian oil-free emerald 0.210ct loose GIA

Sold out ロシア産ノンオイルエメラルド 0.210ctルース

Russian oil-free emerald 0.210ct loose

Sold out コロンビア産ノンオイルエメラルド 0.304ctルース 日独鑑

Colombian oil-free emerald 0.304ct loose Japanese-German edition

Sold out コロンビア産ノンオイルエメラルド 0.090ctルース GIA

Colombian oil-free emerald 0.090ct loose GIA

Sold out コロンビア産ノンオイルエメラルド 0.540ctルース

Colombian oil-free emerald 0.540ct loose GIA

Sold out コロンビア産ノンオイルエメラルド 0.710ctルース

Colombian oil-free emerald 0.710ct loose Japanese-German edition

Sold out エチオピア産ノンオイルエメラルド 0.610ctルース

Ethiopian oil-free emerald 0.610ct loose GIA

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.

KARATZ・Five Commitments

So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.

KARATZ's Initiatives and Social Contributions

We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.

KARATZ Books

These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.

jeweler's tools

For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.