Bulgari ring Allegra

Beautiful Bulgari ring model "Allegra".
In 18K white gold.
Figure a horseshoe engraved "Bulgari".
Set with three stones: a purple heart shaped amethyst (6mm), green tourmaline and pink amethyst (4.5mm).
The three cabochons are movable and can be placed in different positions on the ring.
Weight: 9g approx.
Size: 49 (USA & UK = 4 3/4) (JAPAN = 9)
In very good condition.
Signed Bulgari.