One look at this beauty from Tiffany and Co. and youll know why diamonds are a girls best friend. This Tiffany and Co. pendant is shaped as a key using 18k rose gold and it has been immaculately adorned with a brilliantly cut diamond in the center of the daisy flower. The pendant is held by a delicate chain with a spring ring clasp and, like all of the other keys from Tiffany, it symbolizes a shining future.