"Cartier Gold-citrine Ring"
Signet-style tank ring in 18K (750 thousandths) yellow gold from Cartier; it is set with a beautiful square-shaped citrine with a lovely orange-yellow color. Signed and numbered inside the ring and is in its Cartier case. PB: 13.18g TDD: 52 Very good condition. 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato