Here are some choice examples of very expensive diamond engagement rings. We've selected huge diamonds of the highest quality, each around 5 carats.
The dazzler above is a 4.51 ct. I - SI2 AGS Certified Round Brilliant Cut Diamond Solitaire Ring available in white or yellow gold. Price $72,000.
This fancy yellow cushion cut diamond engagement ring (5.79) carats sells for $42,000 or so.
This stunning ring is 4.09 carats. It's an antique European cut diamond engagement ring and sells for about $29,000.