Natural diamond 0.08 CT Si1
The exact parameters of the diamond can be seen on the certificate (photo number 4).
Certificate confirmed by an expert of the Polish Gemmological Society with a net valuation of $260 USD. 320 USD gross.
The upward dynamics of diamond prices, due to the extremely expensive mining and declining deposits, is maintained at a strong, stable level.
With a dollar exchange rate of 4.4 PLN, the gross value of a diamond is 1407 PLN.
Estimated price based on the USD/PLN gross exchange rate calculated in the range of PLN 4.4-5/1USD (the PLN 5 barrier was exceeded in September 2022, then according to economists there was an upward correction).