Luxurious Solitaire Diamond Ring on Silk

[Format] Professional e-commerce product main image, square 1:1, quiet bridal-jewelry luxury on rippled icy-blue silk with a macro solitaire sparkle and one intimate inset. [Colors] Icy pale-blue silk background (#cfe4f2) with flowing satin folds; white-gold metal and brilliant-white diamond sparkle; warm skin tone only in the inset photo; deep grey serif wordmark type. [Layout] A serif wordmark with a small line of shop text sits top-left; a circular inset photo floats upper-right; the solitaire ring dominates the centre on the silk ground with a soft reflection beneath. [Subject] Centre: an elegant white-gold solitaire engagement ring with a large round brilliant-cut diamond in a six-prong crown catching star-like sparkle. Upper-right circular inset: the fair-skinned white / Caucasian hand of a woman wearing the ring, her smiling lips and chin visible at the edge, a fine pearl necklace at her collar. [Headline] Top-left only: an understated serif brand wordmark with a small letterspaced "Fine Jewelry Flagship Store" line beneath it; no promo copy anywhere. [Mood] Luxurious, quiet and bridal; icy blue silk, macro diamond sparkle and one intimate lifestyle inset.