EXAMPLE HGDL DIAMOND CERTIFICATE
London's Hatton Garden Diamond Laboratory (HGDL) certificate provides an independent verification of the grading of smaller carat weight natural mined diamonds used in diamond-set jewellery. These are also referred to as "melee diamonds."
Each certificate provides details of the precious metal of the jewellery item, the combined diamond carat weight, shape, colour and the clarity grouping, for example F-G/VS.
By nature of the size of melee diamonds, the amount of information provided is less extensive than for larger certified diamonds.
HGDL certification provided on diamond-set items where stated