Centering one checkerboard cut Swiss blue topaz, measuring 10 x 10 mm, weighing approximately 5.00 carats, surrounded by a halo of 24 round brilliant cut diamonds, weighing a total of approximately .50 carat, SI to I clarity, G to H color, the ring has amazing openwork and floral engraving, the top section is 15 x 15 mm, the band graduates from 3.90 to 3.20 mm, all weighing 8.10 grams, ring size 7.