It was a four-carat, emerald-cut diamond.
Frederik presented Mary with an engagement ring featuring an emerald-cut diamond and two emerald-cut ruby baguettes.
When he left, she had been wearing an emerald-cut diamond.
When she died in 1949 Winston purchased the large emerald-cut diamond.
Her first ring was an emerald-cut diamond that was more than two carats.
A $450,000 emerald-cut diamond and platinum necklace is among the most expensive of the upmarket items for sale here.
They were platinum and diamonds, and the engagement ring had a fine, emerald-cut diamond of about five carats.
Her second husband gave her a six-carat, emerald-cut diamond with trilliums on the side.
Kallista had 118 emerald-cut diamonds.
The other one - the 3.27-carat square-shaped, emerald-cut diamond from Harry Winston, which says it is worth $60,000.