Natural diamond 0.11 CT Si1
The exact parameters of the diamond can be seen on the certificate (photo number 6).
The certificate confirmed by the Polish Gemological Society's appraiser with a net valuation of $300 USD. 369 USD gross
The upward dynamics of the price of diamonds 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 1623 PLN.