Victorian silver gold ruby diamond pair of earrings and brooch - mark of BLACK STARR and FROST

silver and 18k yellow gold brooch wearable as pendant and a pair of earrings; floral composition with ribbons and loops in rose cut diamonds ca. 10,00 ct and dangling rubies ca. 13.00 ct, geographical origin Burma. Signed B.S & F. (BLACK STARR & FROST).
Brooch dimensions ca. 70 x 40 mm. Earrings dimensions ca. 45 x 20 mm. Weight 43.5 g.
Original leather case.
Item condition grading: **** good.
Accompained by jewels report doctor Maurizio Martini.