Our Gwen Pendant features two different sets of Australian Sapphires that are eloquently arranged to sit along the neckline. It is crafted in 9ct Rose, White or Yellow Gold. MAIN SAPPHIRE 0.48ct Green Sapphire, Round SPECIFICATIONS 9ct Yellow Gold = 2.76gm 3.00mm Green Sapphire Round Brilliant Cut 3 = 0.48ct avg. 2.00mm Blue Sapphire Round Brilliant Cut 2 = 0.08ct avg. incl. 9ct YG Chain 1.58gm 48cm| Every Sapphire Dreams Jewellery piece will come with a Sapphire Dreams certificate card stating the specifications seen above as well as a disclaimer that all sapphires are Australian and are ethically sourced.