The name'diamond' was taken from the Greek word,'adamas', meaning'invincible', a sheer testament to its remarkable and superior hardness. The superlative physical qualities of diamond are credited to the strong covalent tetrahedral bonding between its transparent crystals. Each individual carbon atom is connected to four other carbon atoms, all of which are very closely packed. This formation yields a remarkably strong three-dimensional cubic structure.Diamond's cubic crystal pattern is also completely symmetrical, which allows it to refract light in all directions at the same velocity (singly refractive). The item "VINTAGE ESTATE 14K GOLD GENUINE NATURAL DIAMOND EARRINGS ROUND STUDS ITALY 585" is in sale since Thursday, November 02, 2017. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Earrings\Diamond". The seller is "4744366" and is located in Andover, Massachusetts. This item can be shipped to United States.