1. A rare pink diamond ring Price: $10.8 million An amazing pink diamond ring that is studded with five carats of diamond is the world’s most expensive diamond ring. The ring was auctioned in Honk Kong for a record $10.8 million. 2. The vivid blue diamond ring : Price: $7.9 million Next in the most expensive list is the vivid blue diamond ring that was sold at the Sotheby’s auction. The ring weighs six carats and has a beautiful blue diamond. The diamonds are set on a platinum ring with emerald cut diamonds on both the sides of the blue diamond. 3. Oval-cut diamond ring Price: $4.2 million A pure white diamond ring that fetched $4.2 million at Christie’s Important Jewels sale in New York is next on the list. An oval cut diamond that weighs 46.51-carat is placed in a platinum ring and has VVS2 diamond mounted with E color clarity. 4. Elizabeth Taylor diamond ring Price: $ 1.3 million This platinum diamond ring is from the Elizabeth Taylor Jewelry House, Los Angeles and costs $ 1.3 million. The stunning oval diamond ring weighs 5.98 carats and is surrounded by 3.96 carats of round diamonds making a flower around it. 5. De Beers Platinum diamond ring Price : $1.83 million The De Beers Platinum diamond ring perfectly dazzles in nine-carat diamond stone. This beautiful piece of jewelry costs $1.83 million. 6. Novo Yellow diamond ring Price: $1.35 million Although this ring is last on the list, this is surely one of the most attractive pieces of ring one can have. The yellow color of the ring is what makes it different from other regular rigs. This Novo Yellow diamond ring was sold by Tiffany’s for $1.35 million. The diamond weighs 25.27 karats and is set in a yellow gold platinum ring.