I recently sold some. Platinums taken a significant hit in value over the past few years. Seems Palladium is its alternative in the manufacture of all our "must have" electronic devices these days. Don't expect much over spot as those diamonds are pretty small.
Looks like it's maybe 7g? Worth a try going with a diamond resale place but don't get your hopes up. A smeltor will give you about 90% whats calculated below. They'll "frost" the diamonds and send them back to you as they have no use for them. A "we buy gold" place will give you far less.
https://dendritics.com/metal-calc/?...htU=7&cb=6835615001&Units=g&P=1000&Purity=950