Formation

So, what exactly is an emerald? This radiant gem is a silicate of beryllium and aluminum, presenting itself in nature as hexagonal crystals. A rare variety of the mineral beryl, emerald's distinct green hue is owed to its chromium content, rendering it a gemstone of unparalleled value. The lively luminosity of its color sets emerald apart, making it a truly unique and cherished gem.

Yet, the path to perfection for emeralds is rarely smooth. Inclusions often punctuate the evenness of their color, bearing witness to the turbulent genesis that characterizes these gemstones. Rather than detracting from their value, fine inclusions add to the allure. Even an emerald with inclusions, if it boasts a deep, lively green, holds a higher value than an almost flawless counterpart with a paler hue. Poetically referred to as 'jardin' by specialists, these crystal inclusions, cracks, or fissures become tender little green plants in the emerald garden, adding to the gem's natural identity.

From a chemical-mineralogical perspective, emeralds are beryllium-aluminum-silicates with a commendable hardness of 7.5 to 8 on the Mohs scale. Although softer than sapphire, emeralds still stand tougher than steel, ensuring they won't easily succumb to scratches. However, being a brittle stone, rough handling could result in chipping.

Emeralds proudly belong to the beryl family of gemstones, sharing their chemical composition with other captivating stones like aquamarine, morganite, heliodor, and pale green beryl. Pure beryl is colorless, but emeralds come to life when traces of chromium and vanadium are introduced. The mingling of these elements, against all geological odds, gives rise to one of the world's most beautiful gemstones. Tectonic processes, orogenesis, metamorphism, and erosion contribute to the emerald's eventful genesis, leaving behind a magnificent tapestry of small or large fissures, mini-crystals, bubbles, and various shapes within the gem.

The vivid green color of emerald owes its existence to chromium, and as the amount of chromium increases, so does the depth of color. However, this also leads to irregularities in crystal growth, resulting in visible inclusions. Deep green stones that are exceptionally clean are a rarity, making fine emeralds treasures with a storied past, entitled to showcase their unique character.