The sapphire is a stone very used in jewelry, sapphire rings have blue colors ranging from dark blue to intense blue, through sky blue. Sapphire is a fairly hard stone (9/10 on the Mohs scale), which allows it to be worn in all circumstances. However, it is always advisable to avoid chemicals, heat and prolonged contact with water.
Diamond sapphire smile ring in 18 karat (750) yellow gold. System ring set with a line of 9 square calibrated sapphires in a rail setting, forming a smile. This ring can be opened and closed in a single movement. The surface of the ring is set with ten brilliant-cut diamonds. Ring signed Sifani.
Sapphire diamond cluster ring in 18 karat (750) yellow and white gold. In its center, a large oval synthetic sapphire weighing approx. 2 carats, surrounded by 14 brilliant-cut diamonds in a closed setting.
Art Deco style sapphire diamond ring in white gold 18 karats (750). Octagonal ring centered with a brilliant-cut diamond (about 0.20 ct) in a closed setting. Twelve natural sapphires encircled the diamond, themselves included in a surround of 28 brilliant-cut diamonds. Art Deco style ring, second half of the 20th century, French jewel.
Eagle head hallmark
Finger size : 52 UE or 6 US (can be changed)
Bezel size : 16 mm x 13 mm
Estimated weight of the central diamond : about 0.20 carat
Total estimated weight of diamonds : 0.48 carat
Estimated weight of natural sapphires : 0.92 carat
Sapphire diamond cluster ring in white gold 18 karats. The bezel is set with an oval cut sapphire surrounded by 10 brilliant-cut diamonds. The sapphire is set with six claws and has a beautiful deep blue colour. Second hand engagement ring, circa 1980.
The hallmark is illegible, the jewel is acid-tested with 18 karat gold.
Finger size: 56 EU or 7.75 US (can be resized)
Bezel size : 15.7 mm x 12.8 mm
Estimated weight of stones: central sapphire, 1.15 carat; diamonds (in total), 0.70 carat
Condition : Scratches from use, natural inclusions of the sapphire.
Pre-owned sapphire ring in 18 karat yellow and white gold. The ring is formed by four strands of gold. The central strand is decorated with three round sapphires set in claws. The sapphires are framed by two strands of white gold adorned with two old-cut diamonds and fine chased patterns. Second-hand ring from the 1980s, France.
Marked 750, CBD goldsmith’s mark
Finger size: 54 EU or 6.75 US (can be changed)
Width of the ring : 7 mm
Estimated weight of sapphires : 0,33 carat
Estimated weight of the diamonds : 0.02 carat