A ring described as PD950, weighing 1.225 g with a 0.034 ct diamond, should be assessed as a possible palladium ring, not automatically as platinum. The mark, report and actual material need to agree. These figures allow a conditional metal calculation, but not a reliable current sale price.
PD950 and PT950 are different descriptions
Pd is palladium; Pt is platinum. A 950 fineness description means 950 parts per thousand of the named precious metal. The GOV.UK palladium hallmark notice describes 950 as a palladium fineness in the UK hallmarking system. That supports the material distinction; it does not authenticate a Chinese-market ring or establish its local resale terms.
Ask the buyer to identify the metal before comparing quotes. A platinum price, gold price or the original shop price cannot be substituted for a palladium offer. Also confirm that the buyer actually accepts palladium jewellery.
What the stated weights would mean
A 0.034 ct diamond weighs 0.0068 g because one carat is 0.2 g. If 1.225 g is the gross weight of the complete ring, that is its only stone, and all remaining material is verified Pd950, the estimated alloy weight is 1.225 − 0.0068 = 1.2182 g. The nominal palladium content is then 1.2182 × 0.95 = 1.15729 g.
This is a calculation from the supplied figures, not a test result. Other stones, non-palladium components, measurement tolerances or a certificate field that already gives net metal weight change the calculation. Do not subtract the diamond twice.
Ask how the buyer's price is expressed
If the offer is per gram of accepted Pd950 alloy, apply it to the accepted alloy weight. If it is per gram of pure palladium, apply it to the accepted fine-metal content. Ask whether refining, testing and service charges are already included. Multiplying a net offer by another purity factor or deducting the same fee twice understates the quote.
The diamond is 3.4 points. Its stated I–J colour range alone cannot establish value or a precise loose-stone grade. The GIA diamond grading report guide explains the wider quality factors. Ask whether a quote includes any separate stone allowance and whether the ring would need dismantling to obtain it.
Compare a complete-ring offer with a material-recovery offer, keeping photographs and any Golden Dafu purchase or service records. Do not authorise destructive testing or dismantling before agreeing how it affects the item and what happens if you decline the final price.