Iranian Crown Jewels of nearly a decade, Nader Shah Afshar successfully drove the Afghans from Iran. In 1738, the Shah launched his own campaign against the Afghan homeland. After taking and raiding the cities of Kandahar and Kabul as well as several principalities in far-off northern India, and sacking Delhi, the victorious Nader Shah returned to Iran with what remained of the plundered crown jewels as well as several other precious objects now found in the Iranian Treasury. These included diamonds, emeralds, rubies, sapphires, and other precious gemstones. Four of the most prominent acquisitions from this conquest were the Koh-i-Noor and Darya-ye Noor
Pink diamond was subsequently forced to default on its purchase. Among famous pink diamonds; the Daria-i-Noor is the largest pink diamond in the world, measured at 182 carats; together with the Noor-ul-Ain, it is the oldest known pink diamond, both belonging to the Iranian crown jewels. As with the color in all fancy color diamonds, the color in pink diamonds is assessed according to its "hue", "saturation" and "tone". The hue refers to the primary and secondary colors, the saturation refers to the distribution of color, and the tone refers to the darkness of the color. Pink diamonds can occur in hues