A 28 ct. D internally flawless diamond set a per-carat record at Sotheby’s April 8 Hong Kong sale of Magnificent Jewels and Jadeite.
The stone, which had excellent cut, polish, and symmetry, achieved $6.9 million, or $239,352 per carat—a world record per-carat price for a round white diamond.
Other notable sales:
- A matched pair of diamond pendant earrings, each 8 cts., brought in $2.82 million.
- A 19.54 ct. cushion-shaped Colombian emerald and diamond ring took in $1.93 million, above its $1 million to $1.5 million estimate.