Sample ČGL certificate
The weight of a diamond is always given in carats and the international abbreviation, ct is used. The weight is indicated in certificates with 2 decimal places. Measurement is done with an accuracy of 3 decimal places. The second decimal place can only be rounded up if the third decimal place is 9.
Sample GIA certificate
Prospectors carefully scrutinize extinct volcanoes, river beds and sandy coastal areas. To get one carat (0.2 gram) of diamonds it is necessary to mine 250 tons of rock, sand or soil in average. For this reason diamonds are so precious.
The diamond is the only gemstone that occurs in all shades of colour but the most common colours (after cutting) are from white to yellow. An international rating system from “D” to “Z” was developed for these basic colours. The whiter the shade of the stone, the closer the mark of the stone is to the beginning of the alphabet.
Sample HRD certificate
World’s famous diamonds deposits
The modern brilliant cut is based on optical calculations focusing on maximizing the beauty of a diamond that comes as a result of its brilliance and dispersion.
A handful of diamonds are very famous today for their unbelievable history and enormous size.
Công ty TNHH MTV TM-DV Ân Minh tự hào là nhà phân phối chính thức các sản phẩm kim cương của tập đoàn DIC Holding.