patterned robes against a luminous golden backdrop

0 mmHeight off Finger: 3

The mounting is from the 1920s or perhaps earlier

An interesting side note

Modern Brilliant Cut Diamond Halo Engagement Ring with Split Shank Ametrine Pendant patterned robes against a luminousThis exquisite white gold engagement ring showcases a unique split shank style, encircled by a sparkling diamond halo. Accented with diamond studded shoulders, it exudes elegance and brilliance from all perspectives. A truly captivating symbol to express your love and create an unforgettable proposal. Metal: 14K White Gold Gem: Diamond . 14 Carats, J in Color, I2 in Clarity Gem Measurements: 3. 2 mm, Round Accents: 36 Diamonds totaling . 15 Carats, H