Skip to content

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 "

Sort by

Sold out K18 Colombian oil-free emerald 0.35ct ring GIA
Sold out K18YGノンオイルエメラルドキャッツアイ0.26ctリング GIA
Sold out ロシア産ノンオイルエメラルド 0.150ctルース
Sold out ロシア産ノンオイルエメラルド 4mm/0.210ctルース 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
Sold out コロンビア産ノンオイルエメラルド 3.1mm/0.11ctルース 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
Sold out ノンオイルエメラルド 0.430ctルース 日独鑑
Sold out コロンビア産ノンオイルエメラルド 0.178ctルース 日独鑑
Sold out ロシア産ノンオイルエメラルド 3.0mm/0.09ctルース GIA
Sold out ノンオイルエメラルド 3.1mm/0.110ctルース GIA
Sold out ノンオイルエメラルド 3.3mm/0.130ctルース GIA
Sold out ノンオイルエメラルド 0.38ctルース GIA
Sold out ノンオイルエメラルド 3.0mm/0.10ctルース GIA
Sold out ロシア産ノンオイルエメラルド 0.30ctルース GIA付
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
Sold out 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
Sold out コロンビア産ノンオイルエメラルド 0.290ctルース
Sold out 【12523420掲載】ノンオイルエメラルド 0.200ctルース
Sold out ノンオイルエメラルド 0.360ctルース AIGS付 - KARATZ STORE|カラッツSTORE
Sold out Oil-free emerald 0.260ct loose with GIA
Sold out Colombian non-oil trapiche emerald 2.00ct loose GIA
Sold out ノンオイルエメラルド 1.76ctルース GIA
Sold out Brazilian oil-free emerald (NONE) 0.140ct loose stone GIA
Sold out ブラジル産ノンオイルエメラルド 0.100ctルース GIA
Sold out アフガニスタン産ノンオイルエメラルド 0.040ctルース GIA
Sold out アフガニスタン産ノンオイルエメラルド 0.150ctルース  GIA
Sold out コロンビア産ノンオイルエメラルド 0.384ctルース
Sold out コロンビア産ノンオイルエメラルド 0.100ctルース
Sold out 【12544792掲載】コロンビア産ノンオイルエメラルド 0.128ctルース

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.