Solitaire ring in white gold and diamonds

Guérin solitaire ring in 18k white gold (750/1000). Set with one brilliant-cut diamond, weighing approximately 0.3 ct. Surrounded by approximately 20 brilliant-cut diamonds, each weighing approximately 0.005 ct. Total diamond weight: approximately 0.1 ct. Width at the top: 0.42 cm. Ring size: 49. Total weight: 1.52 g. Excellent condition.