Signed Yellow Gold Princess Ring Set with Blue Sapphire Center Stone. The center measures about 0.33 carats. Surrounding the center is a row of bezel set blue sapphires and below that row is a row of bezel set cabochon stones that vary in makeup but are all natural. The ring is signed JG with a hallmark but we are unaware of the maker. The ring is in 8 karat yellow gold and is currently a finger size 7 1/2 but can be adjusted to any finger size