A Y-shaped wedding dress necklace places a fine vertical line above the shaped bodice edge. Large folded volumes sit beside exposed shoulders. Diagonal folds divide the bodice above a full pale skirt whose hem is outside the picture. Longer earrings, a floral hair ornament and rings accompany the necklace. Both hands rest at the waist. The visible jewellery colours cannot establish a metal or stone type.
For your outfit, compare the gap between the bottom of the jewellery and the real garment edge first. Try the same upper shape without a necklace too, keeping earrings and hair unchanged. Then compare a shorter available option or have it put on. Turn your head sideways and lower your arms to reassess the line. A head-to-waist view supplements the jewellery close-up by including the broad sleeve areas beside the fine necklace. Ask about the actual length setting of your chosen piece rather than inferring an adjustable connection from the photograph.