Natural diamond 0.10 CT Si2
The exact parameters of the diamond can be seen on the certificate (photo number 4).
The certificate confirmed by the Polish Gemmological Society's appraiser with a net valuation of $230 USD. 283 USD gross.
The upward dynamics of diamond prices, due to the extremely expensive mining and declining deposits, is maintained at a strong, stable level.
At a dollar exchange rate of 4.4 PLN, the gross value of a diamond is 1245 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 crossed in September 2022, then according to economists there was an upward correction).