Colombian Emerald And Diamond Tank Retro Ring In Rose Gold And Platinum

Tank Retro ring in 18Kt rose gold and platinum (hallmark: owl and Mascaron), set in its center with a square with cut sides emerald, weighing approximately 0.60 Ct, and an old-cut diamond, weighing approximately 0.70 Ct (estimated color I, estimated clarity VS), in a shoulder of single cut diamonds, the total weight of which is estimated at approximately 0.35 Ct.

Emerald certified as natural and of Colombian origin (Carat Gem Lab Paris certificate) with minor impregnation noted.

Work circa 1935/1940.
Gross weight: 12.17g
Height of the central motif: 1.60 cm
Width of the central motif: 1.80 cm
Finger size: 62 (diameter 19.75 / US 9.80)
Condition: slight micro scratches on the gold and platinum parts, slight abrasion and shocks on the stones, see photos.