The IDEX Diamond Price Report for July 2020 shows that prices for round polished diamonds were “largely static” for sizes between 0.70-1.99 carats while Fancy diamonds under 4 carats “sustained a number of losses”.
1-carat goods (1.00-1.24 carats) as well as 0.90-0.99 carats and 1.25-1.49 carats barely moved in July, but the 0.45 carat range in VVS goods showed a “clear downward trend”. There was “sporadic upward movement in 0.50 carats” and “quite some movement” in 0.3-0.39 carats both up and down – with a clear trend in the SI2 goods.
Fancy diamonds sized 0.18 carats to 0.22 carats saw 4%-5% drops among better colors and clarities. Larger stones (4.00-5.99 carats) saw a number of increases, mostly among better colors.
Read the full report here