Emerald – Harry & Co Jewellery

Emerald Characteristics and Grading

The word 'emerald' is derived from the Latin word 'smaragdus', which came from the Ancient Greek word 'smáragdos' meaning 'green gem'.
Emeralds are graded based on color, clarity, cut, and carat weight.
Color is the most important criterion in grading emeralds.
Clarity is considered a close second in the grading of emeralds.
Emeralds occur in hues ranging from yellow-green to blue-green, with the primary hue being green.
Only medium to dark-toned emeralds are considered true emeralds.
Emeralds tend to have numerous inclusions and surface-breaking fissures.
Emeralds are graded by eye, and if they have no visible inclusions, they are considered flawless.
Inclusions and fissures within an emerald are sometimes referred to as 'jardin' due to their mossy appearance.
Eye-clean emeralds with a vivid primary green hue and minimal secondary hues command the highest prices.

Most emeralds are oiled as part of the post-lapidary process to fill in surface-reaching cracks and improve clarity and stability.
Cedar oil and other liquids with similar refractive indexes are commonly used for treating emeralds.
Epoxy resins are used for filling emeralds with many fractures.
Treatments are typically applied in a vacuum chamber under mild heat to enhance absorption.
The use of oil is accepted in the gem trade, but treated emeralds are worth less than untreated ones.

Chipembele, a 7,525-carat emerald from Zambia.
Gachalá Emerald, one of the largest gem emeralds at 858 carats.
Large, di-hexagonal prismatic crystal of 1,390 carats housed at the Mim Museum in Beirut.
Empress Amélie of Brazil wore an emerald parure.
Various Colombian emeralds of significant size and quality.
The Patricia Emerald housed in the American Museum of Natural History.
The St. Louis Emerald, also known as the 'Emeraude de Saint Louis.'
The Gachala Emerald displayed at the National Museum of Natural History.
The Hope Emerald featured at the Smithsonian Institution.
Notable emeralds auctioned by Christies, including the Rockefeller Emerald and the Chalk Emerald.

Emeralds have been prized and used in jewelry for thousands of years.
Ancient civilizations such as the Egyptians, Greeks, and Romans valued emeralds for their beauty and symbolism.
Cleopatra, the famous Egyptian queen, was known for her love of emeralds.
The Spanish conquistadors discovered large emerald deposits in South America during the 16th century.
Emeralds have been associated with various legends and myths throughout history.
Emerald is the traditional birthstone for May and gemstone for the astrological sign of Cancer.
Emerald City is a prominent location in 'The Wonderful Wizard of Oz'.
Meenakshi Amman Temple in Madurai, India, has an idol made of emerald.

Reference	URL
Glossary	https://harryandcojewellery.com.au/blogs/glossary/emerald
Wikipedia	http://en.wikipedia.org/wiki/Emerald
Wikidata	https://www.wikidata.org/wiki/Q43513
Knowledge Graph	https://www.google.com/search?kgmid=/m/02qv1