The quality of colorless princess cut diamond is unmatched if you go for the right one. The beautiful diamond necklace is available in various color, with clarity and computer calibrated for exceptional match and brilliance.
Dont be fooled into buying diamond studs that are said to be .25 points. They are NOT a quarter of a carat, and will be so small that they should only be used as accents to other stones or the gold itself.
With a 10 power diamond loupe, a gauge, the proper light and some experience you may be able to approximate the size and quality of fancy diamonds.