Jasper shops Brooch

Lovely wee Jasper Brooch, Likely NZ Made, has a jewellers stamp mark on it. Tested 925 silver, heavy at 47.10grams. Stone looks to be NZ Jasper one of the shops very few semi precious stones here in Newzealand. Stone size is approx 17.88mm long by 12.23mms wide. The design look to be Danish or Scandinavian Mid century modern look approx 1960's. Makers mark looks like two dots inside a marquise shape. Total dimensions of the brooch are 3.6cms by 3.1cms.