This stunning ring features a cluster of sparkling blue zircons (9!) set in a luxurious solid 10k yellow gold band. Perfect for adding a touch of elegance to any outfit. Zircon is NOT cubic zirconia which is a synthetic stone. These are natural Zircons mined from the earth. Zircon is also the birthstone for December. They have a high refractive index and sparkle like diamonds. The face of the ring is approximately 20x12mm. Quite a bit of real estate on your hand! A size 6.0 on my ring wand and weighing 5.2 grams this is a substantial ring. In excellent vintage condition.