Tourbillon ring in 18K (750°/°°) yellow gold and platinum (850°/°°), centred on an old-cut cushion diamond weighing approximately 0.10 ct in a setting of calibrated sapphires (worn, one synthetic sapphire probably brought back following reworking), the attachments adorned with lines of rose-cut diamonds. TDD 54 - Gross weight: 3.3 g