estimated

The Georgian piece contains about 500 diamonds and was bought for almost double the amount estimated by Sotheby's auction house.

Authorities in Delhi - which has an estimated population of more than 33 million - have already enacted measures aimed at tackling the pollution, including spraying roads with water containing dust suppressants.

An estimated 4,000 illegal gold miners are hiding underground in South Africa after the government cut off food and water in an effort to "smoke them out" and arrest them.

It is estimated that half of all pregnancies in the UK are unplanned.

The three-day event, which will celebrate its 50th anniversary in April, draws nearly 200,000 people to the streets of Long Beach, contributing an estimated $63 million to the region’s economy annually.