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It is indeed a pleasure to showcase this one of a kind vivid green gota de aceite Colombian Muzo emerald, it has a carat weight of 1.55 Ct, this emerald has an exquisite vivid green color, maverlous light dispersion and outstanding clarity, this stone is also a No oil, which means it didn’t go under the standard oiling treatment which around 99% of the emeralds are usually sent, making it exceptionally rare and unique, the gem is a “crown” emerald meaning it has a color zoning and concentration of the color mostly in the culet and the pavilion, however the cutter performed a remarkable work as the emerald displays its full viviness at the table which is the part of the stone which will be observed by the viewer, the emerald can be set in traditional settings such as prongs or bezels and will definitely look gorgeous, if you’re the kind of user who loves heart cut emeralds with these magnificent characteristics, this is an excellent choice and is ideal for those who love to collect this kind of rare Colombian emeralds. This emerald is a collector’s stone, you don’t see very often Colombian emeralds with this uniqueness.

Gem: Colombian Emerald

Origin: Muzo, Boyaca, Colombia

Color: Vivid green

Dimensions: 7.72x6.59x5.43mm

Weight: 1.55 Ct

Price per carat: 6370 USD

Final price: 9873 USD

Treatment: None

GOTA DE ACEITE / BUTTERFLY WING: NOMENCLATURE FOR THE FINEST COLOMBIAN EMERALDS

The finest and rarest emeralds are sometimes said to have an optical effect called gota de aceite. This term describes an aspect of emerald clarity that is associated with Colombian emeralds.

There is no better place to rediscover wonder than in a remarkable phenomenon that occurs inside the finest emeralds. That phenomenon is called gota de aceite (Spanish for “drop of oil,” pronounced “go-tuh day ah-say-tay”). A velvety interruption of the light passing through the emerald, the effect is prized by connoisseurs in the same way they value the velvety texture of a Kashmir sapphire. In both cases, the color of the stone is softened and the internal reflections are spread by numerous microscopic inclusions, reducing extinction and giving a liquid, velvety texture. Gota de aceite is associated with the Colombian emerald, and even in Colombian stones it is visible in only one in a thousand, mainly of fine quality.

The term gota de aceite is also known as the “butterfly wing effect” (efecto aleta de mariposa). Transparent irregularities in the internal crystal seem to be the result of changing and unstable conditions during emerald crystallization.

These conditions give rise to both raised hexagonal terminations as well as etched geometric depressions. After their formation, these growth structures are overgrown with more emerald. The growth structure and patterns thus formed are transparent and difluse the light within the faceted emerald in a manner reminiscent of a drop of thick oil, hence the name.

FIXED PRICE, THIS STONE IS ONE OF A KIND AND IS EXTREMELY DIFFICULT TO BE FOUND.

For hundreds of years, the mines of Colombia have yielded many of the world’s finest emeralds. They were known to the Indian inhabitants prior to the arrival of the Spanish Conquistadors in the 1500s. After being introduced to emeralds in the spring of 1537 as a gift from the Boyacá Indians, over the following decades it was the Spanish who began to send them from what they called “New Grenada” back to Europe. Although emeralds had previously been known from Egypt and a small mining area in Austria (and perhaps from Central Asia), the material from Colombia was of much better quality. There are three main mining areas in the country – Muzo, Coscuez, and Chivor – located in two mountain belts 50 to 80 kilometers northeast of Bogotá.

SALES POLICY

Lunariagems offers 7 days full refund and return policy for all buyers.

Our Gemstones look very similar to the ones in photos, we use the best cameras available at the moment to capture their true color and nature.