Strathmore Rose Tiara Lady Elizabeth Bowes-Lyon (the future Queen Elizabeth, the Queen Mother) received it as a gift from her father, the Earl of Strathmore, for her wedding in 1923. The piece itself is likely older than that; it may have already been an antique when the Earl purchased it.
Strathmore rose tiara. The tiara features a garland of wild roses in diamonds, mounted in silver and gold. Individual elements can be dismantled and worn as brooches. Lady Elizabeth Bowes-Lyon received it as a gift from her father, the Earl Strathmore for her wedding in 1923