Estate 4.40 carat GIA certified natural untreated sapphire and diamond ring. This 18 karat white gold ring has one GIA certified natural (non heat treated) sapphire at 4.40 carats. This estate sapphire ring is accented with 24 round brilliant diamonds at 0.85 carat total weight having VS1-2 clarity and G-H color. This sapphire diamond ring is a size 6. The natural sapphire has a GIA certification #1166857258. This GIA certified sapphire ring is appraised at $26,000.