diamond dealers 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 GIA Certified Diamond in jewelry is pretty well standardized to size and quality of the stone.
platinum wedding ring, known for over 3000 years, were probably first found in India as loose stones associated with the sand and gravel of riverbeds.
The depression of the 1930s hit the wedding bands trade hard. The cutting shops were sometimes shut down completely for several weeks at a time. The situation remained difficult until the outbreak of the Second World War.