For an oval-cut diamond, depth plays a significant role in its elegance and sparkle. An ideal depth falls between 53% and 62%, with a narrower range of 58% to 62% often preferred for a brilliant ...

The second Harry Winston piece was a pair of platinum cluster earrings featuring pear and marquise-shaped diamonds. The two main diamonds were oval brilliant-cut diamond pendants of 10.10 and 10.08 ...

A platinum ring centered with a 31.22-carat oval-shaped Ceylon sapphire surrounded by brilliant-cut diamonds fetched $76,200. Suzanne Belperron diamonds earclips, 1945, in a trefoil design fetched ...