1 carat diamond rings gained immense popularity due to the ... remember that when you need a platinum setting, there might be an addition to the cost of the ring. Regardless of the decision ...

1. The Pink Star Diamond Ring – $71.2 Million ... ring is known for its 12.03-carat Fancy Vivid Blue diamond. This flawless gemstone, mounted on a platinum band, was purchased by a Hong Kong ...

The priciest offering at this writing is a $319,999.99 ring set in platinum with a 1.54-carat pink diamond rated with VVS1 clarity. For comparison, a solitaire diamond ring at Tiffany & Co.