provenance:Measurements:It measures 2 1/4 1 5/8". The jadeite is 43.2 x 22.5 x 3mm. It weighs a total of 25.3g. measurements:Condition:In overall very good condition with light surface wear consistent with age and use. Though secure, the plaque is slightly loose within the prongs. weight:Provenance:From an Upstate New York estate. Estimate:$200-300