4000 BC - 476 AD
Ancient World
476 AD - 1500
Medieval World
1500 - 1945
Modern World
1945 - Present
Contemporary World


4C´s GIA + 2C´s USIA = 6C´s



+ CONFIDENCE
Confidence in our skills and technology of the most advanced Diamond Grading and Verification instruments of the world.


+ CONNOISSEUR
Our Connoisseurs evaluate pieces of jewellery and pieces of art on the basis of their background and experience of the style and technique of artists and jewellery designers. Our responsibility for connoisseur is to attribute authorship and validate authenticity of your stone or piece of art.


+ COLOUR
The color-grading system is the best way to measure the degree of colorlessness by comparing a stone under controlled lighting. The diamonds are the result of carbon exposed in high heat and pressure. The diamonds clarity involves some numbers, sizes, relief and nature.


+ CLARITY
Diamonds have several internal characteristics like inclusions (knot) or external characteristics like blemishes. Clarity-grade system have a scale that define the diamonds by their flawless and slightly. Most of this inclusions are so tiny that most people can´t see on naked eye. That´s why combined expertise in gemology and jewelry design is very important.


+ CUT
Diamond´s cut are crucial to the stone´s final beauty and value. Table is the facet of a gemstone, crown is the extending portion from the girddle to the table. Pavillion is the extension from the girddle to the culet. Culet is the tip of a gemstone.


+ CARAT
Carat weight is the measurement and not Karat (Gold purity). The metric "carat" is defined as 200 milligrams. Each carat is divided into 100 "points". When diamond weighs 0.10 carats, this means that as "ten pointer". Diamonds weights greater than one caract are expressed in caracts and decimals - 1.08 carat stone is described as "one point on eight carats".

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