Modani Diamonds Antwerp

information for your benefit

Education

GOLD
...is a soft yellow metal. Like all other metals, gold is also highly malleable and ductile. Moreover, in high temperature it can be formed in different shapes. Wearing gold is belief to illumination, love, compassion, courage, passion, magic, and wisdom. Gold is a precious metal that is associated with wealth, grandeur, and prosperity, as well as sparkle, glitz, and glamour.

PLATINUM
...the white silver metal known as platinum is the heaviest of the precious metals, weighing almost twice as much as karat gold. It is dense, ductile and impervious to corrosion, in high temperature can be formed in different shapes.

DIAMOND
...formed in nature, has a hardness of 10 on the Mohs scale. Renowned for being the hardest substance on earth. The most precious and enduring of all gemstones, with their very name taken from the ancient Greek word adámas (αδαμας) meaning `unbreakable`. For centuries their exquisite beauty, durability, rarity, allure, sparkling inner fire and unique physical qualities have made them prized above all other gems. The most famed and fabled of all gemstones, very unique in many ways.

Diamond information

4Cs

Carat weight

Carat is the standard unit of weight for diamonds and other gemstones. One carat equals one fifth of a gram. When weighing less than one carat, the diamond's weight is expressed in ”points”: each carat is divided into 100 points, for example: 0,75 carat = 75 points. 0,5 carat = 50 points. When diamonds are mined, large gems are discovered much less frequently than smaller ones. Diamond prices increase exponentially with carat weight. So, a 2-carat diamond of a given quality is always worth more than two 1-carat diamonds of the same quality.

Color grade

Most gem quality diamonds used in jewelry are colorless and nearly colorless, sometimes with tints of yellow or brown. Among the rarest are the colors D, E and F on a scale that goes to Z. Color grades are established by comparing each diamond to a set of master comparison diamonds. Each grade represents a range of color. Grading color is done in a specific and controlled lighting environment and according to strict color grading procedures. More color intensity than Z is called ”fancy” color. Diamonds of all colors can be found in nature: over 300 colors have so far been identified, however these come in an infinite number of shades and hues.

Clarity grade

Since diamonds form under tremendous heat and pressure, internal and external characteristics are common. These characteristics help gemologists separate natural diamonds from synthetics and simulants, and identify individual stones. There are two types of clarity characteristics: inclusions and blemishes. The difference is based on their locations: inclusions are inside the diamond while blemishes are only on its surface.

Cut grade

Cut refers to the finish and proportions, and how these factors influence the overall appearance of a diamond. White and contrasted light called ”brilliance”, the color flashes called ”fire”, and ”scintillation” or flashes of light that occur when the stone moves, the ratio of weight vs. size, the smoothness and symmetry of polished faces: all these determine how light enters the stone, in what way it returns to the eye, and how the stone performs in terms of sparkle. The Cut grade is expressed on a scale from Excellent to Poor.

Diamond Shapes

Diamonds are cut in a variety of shapes:

Emerald

Round

Oval

Radiant

Marquise

Princess

Cushion

Baquette

Pear

Trillion

Heart

Asscher

Octagon

EMERALD
...is a precious stone with a green tone that no other gem stone has, the name comes from the ancient Greek word `Smaragdus` it forms in many shades from light to dark and commonly has natural inclusions within. Emerald has a hardness of 7.5-8 on the Mohs scale with is more fragile the a Diamond. The value of an emerald is determined by same factor of a diamond, carat, cut, color and clarity.

RUBY
...is a pink to blood red gemstone and has a hardness of 9 on the mosh scale. The word ruby comes from `ruber`, latin for red. The value of an Ruby is determined by same factor of a diamond, carat, cut, color and clarity.

SAPPHIRE
...is a gemstone that is formed in a variety of colors from light to dark, the most common one is blue but we can also find them in pink, yellow or colourless, it has a hardness of 9 on the mosh scale. The value of an Sapphire is determined by same factor of a diamond, carat, cut, color and clarity.