Vintage sterling silver stud earrrings set with oval cut dark blue sapphire, between two round cut diamonds. The earrings have a golden patina, can be cleaned. 

Check out the matching pendant necklace here:

Sapphire is approximately 7x5mm. ~1ct

Diamonds are about 1mm diameter, 0.020tcw

1/2 x 3/8"

2.6g total

Marked "('GFI' logo) 925"