From around the fifth century unique engagement ring was a symbol of a king´s strength, courage and invincibility. Since then the gold engagement ring has become - and still is - a symbol of love.
Every copper wire in your computer, television, and house has been shaped with a die made from diamond jewelry.
a flawless engagement rings 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.