Old-cut diamonds, French assay mark for silver (800‰) and 18K yellow gold (750‰), French import assay mark for 18K white gold (750‰), French maker’s mark (Voirin-Sonrel), 1975 Maison René Boivin, 2025: Certificate of Authenticity n°202512YAR, original piece manufactured by René Boivin in December 1975 after a drawing by Marie-Caroline de Brosses Diamonds: for an approximate total weight of 0.15-0.25 carat Size/Dimensions: 6.2 x 4.8 cm Gross weight: 43.17 grams