Those who deal in these gemstones usually agree that padparadscha sapphires should range from light to medium pinkish orange to orange-pink. Pink sapphires range from light red (pink) to light purple ...

What gives gemstones colors, or rather ... Amethyst, a type of quartz, owes its captivating purple hue to the presence of iron impurities. When iron (Fe) atoms replace some of the silicon ...

Rahul Kadakia, international head of jewelry at Christie’s, agreed that pink and purple spinels “should ... said that rising demand for colored gemstones has led to a shortage of quality ...