Always looks for certification from reputed institutes like IGI (International Gemmology Institute) or GIA (Gemology Institute of America). This will give authenticity to your purchase.
Do not buy very expensive jewellery from an exhibition unless it’s from a reputed stall or you have purchased stuff from them earlier. This way your risk will be minimum.
Do not buy solitaires from a random stall in an exhibition. If you do, ensure that the number inscribed on the guarantee certificate matches with the one inscribed on the solitaire.
Colour wise D, E, F, G and H and clarity wise VVS, VS are best to ensure that you get the best quality jewellery. Avoid going for I and J colour and SI clarity.
Trends and taste:
Go for trends that will last a lifetime. For instance, invisible setting of ruby, emerald or sapphire looks beautiful and have an everlasting appeal.
With inputs from Preeti Jain, Jewellery Designer