# 10 : Diamond , Yellow
28 October 2025
Description
40 Carets Diamond ; Yellow , Natural , VVS1 , D , Round , Loose.
Dimensions
20 cm W x 19 cm H
Acquired from
Online Auction
Online Auction
For sale
Yes
Yes
Answered within
1 day
By Jonty @ Mayfair Diamonds Ltd
Oct 30, 07:39 UTC
A Large Unmounted "Yellow Diamond"
the brilliant-cut stone stated to weigh 40ct, stated to measure 20mm x 19mm.
Judging by the photo it is Vivid Yellow
Valued on basis of being HPHT color treated but if found to be natural its value would be $3 million plus depending on clarity.
If it is in fact a natural diamond at all or treated HP/HT color, once again it is impossible to sell without first obtaining a GIA gem diamond certificate to prove that it's natural and the quality as per the 4 C's.
Happy to review values once a GIA certificate is obtained.
Valuation is based on being a HPHT treated vivid yellow diamond
