Ladies Diamond Collarette. This is a beautiful example of an easy to wear Diamond Collaret.carat white gold diamond cross complete with an 18 carat diamond cut belcher style hanging chain. Standard 17 Inches, and weighing 29.2 grams if 18 carat yellow gold. The Collarette is set with 15, stunning diamonds in three rows at the centre of the piece. Diamond = 75 pts Hallmarked in full.