Incredibly Beautiful Antique Pearl and Diamond "Toi et Moi" Ring

This is an incredibly beautiful antique pearl and diamond "Toi et Moi" (you and me in French). Set in 18ct yellow gold and platinum, with one beautiful round creamy pearl and one absolutely stunning 0.5ct old-cut cushion diamond.

Size: UK K1/2, US 5.5, sizeable

Condition: Good, some tarnishing to the gold.