A woman was left speechless after learning the true worth of her heirloom Tiffany jewelry on Antiques Roadshow.

The discovery marks the largest diamond to be found at the park this year, according to officials, and the biggest since a 4.49-carat canary yellow diamond was discovered by Fayetteville resident ...

The colour is affected by how the nitrogen is scattered through the stone. If single nitrogen atoms replace carbon, the diamond can be bright canary yellow. If the nitrogen atoms are clustered around ...