3.75 carats total weight Gemstones. Earrings London Blue Topaz : 6 pieces, Round Shape, 3.00 mm. Dimension: 1/4 x 1/2 inch. Pendant London Blue Topaz : 3 pieces, Round Shape, 6.00 mm. Dimension: 1/2 x 1 inch. Earrings & Pendant have a total weight of 5.70 grams and are set in pure.925 Sterling Silver. Brand: Oravo Design: Gemstone Style: Gem-Set Resizable: No Adjustable: No Metal Stamp: .925 Sterling Silver Gem Weight: 3.75 Gift Box: Gift Box