a flawless diamond necklace is no more beautiful to the unaided human eye than a grade in the middle of the scale. Once again, extremely subtle differences in clarity are very important to determine rarity, but only affect beauty when in the very low end of the scale.
engagement ring are all the rage now with the popularity of the yellow gold engagement ring tarnishing somewhat.
unique engagement ring in jewelry are the most popular of all gemstones. Their price and rarity is carefully monitored by the major diamond cartels. As a result the price of fancy diamonds in jewelry is pretty well standardized to size and quality of the stone.