Each set with an oval-shaped Mozambique ruby weighing 4.05 and 3.07 carats respectively, to an oval-shaped ruby surmount, rubies weighing 1.53 carats in total, decorated with circular-cut diamonds weighing 4.65 carats in total, mounted in 18K gold, earring 3.5 cm longGRS, 2015, report no.GRS2015-042191, 3.07 carats, Mozambique, no indication of thermal treatment, also accompanied by an appendix stating that the vivid red ruby is GRS type 'pigeon's blood' GRS, 2015, report no.GRS2015-042188, 4,05 carats, Mozambique, no indication of thermal treatment, also accompanied by an appendix stating that the vivid red ruby is GRS type 'pigeon's blood' Please note that the reports are more than 5 years old and might require an update