https://www.dianomi.com/click.epl?pn=141138&offer=35976565&savid=365089&can_cookie=1&unique_id=aPS6-B7LsBH537qbQyP4ZQAAACQ&adv=75916&said=71495&cf=456.3057.Hotcopper&smartreferer=https%3A%2F%2Fwww.hotcopper.com.au%2Fthreads%2Fann-visible-gold-in-diamond-core-at-crown-prince.8485014%2Fpage-34%3Fpost_id%3D78200322