Vintage Birks 0.90ct Diamond "Martha Washington ring" in 18k White Gold

Vintage Birks diamond 'Martha Washington' style cluster ring in 18k white gold. 

ID#: RG919

Main Stones: One (1) prong set center stone measuring approximately 4.2mm in diameter.  Two  (2) prong set, round brilliant cut diamonds measuring approximately 3.0mm each in diameter.  The estimated clarity is VVS2-VS1 and the estimated colour is F/G. The estimated diamond weight of the three stones is 0.48ct. 

Secondary Stones: Fourteen (14) prong set, round brilliant cut diamonds each measuring approximately 1.95mm in diameter. The estimated clarity is VVS2-VS2 and the estimated colour is E/F/G. The estimated diamond weight of the secondary stones is 0.42ct.

Total Estimated Diamond Weight in ring: 0.90ct

Metal: 18k white gold 

Size: 7

Weight: 5.1g

Markings: 'BIRKS JF' '18K'