A mid-20th century 18K yellow gold brooch representing a bug. The piece is garnished with ten round-cut rubies. Marked RJL on the pin. Total Weight: 2.6 grams. The item comes in a Rood case. S.J. Rood was an English jewelry manufacture and retailer based in Burlington Arcade in Mayfair from 1873 to 1998. Statement Jewelry For Women, Lapel Accessories.