Quick answer: The Pink Star holds the auction record at 71.2 million US dollars, while the Hope Diamond and Cullinan I are valued even higher but have never been sold publicly. Here’s what makes these diamonds so valuable.

Quick answer: The Pink Star holds the auction record at 71.2 million US dollars, while the Hope Diamond and Cullinan I are valued even higher but have never been sold publicly. Here’s what makes these diamonds so valuable.

Quick answer: Let your statement ring be the only bold piece on your hand. Keep other jewellery minimal, wear it on your right hand or middle finger, and pair it with a simple outfit so it stays the focal point. Here’s the full styling guide.

Quick answer: Coloured diamonds are graded by the GIA on hue, tone and saturation rather than colourlessness. Yellow and brown are the most common, while red, blue and vivid pink are the rarest. Here’s how grading, rarity and buying tips work.

Quick answer: The safest way to clean a diamond ring at home is to soak it in warm water with mild dish soap, brush gently with a soft toothbrush, rinse and dry thoroughly. Here’s how to do it safely on platinum, gold and silver settings.