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.
Sapphire diamond tank ring in 18 karat gold. Retro period “tank” ring, decorated with two lines of stones: five sapphires (four natural and one synthetic) and five old-cut diamonds, 0.08 carat each. The gold is solid, and the ring has a certain weight and volume. Tank ring, circa 1945, France.
Eagle head and rhinoceros hallmark (French State hallmark for 18 karat gold).
Finger size: 50 UE or 5.25 US (resized is possible)
Maximum ring width: 13 mm
Total estimated weight of sapphires: 0.85 carat
Estimated total weight of diamonds: 0.40 carat
Circular Art Deco sapphire ring in 18 karat yellow gold. Target ring with a cultured pearl surrounded by calibrated synthetic sapphires. The ring is decorated with a stylized leaf on each shoulder. Art Deco sapphire ring, circa 1930, France.
Eagle head hallmark (french state hallmark for 18 karat gold) and M.H. goldsmith’s hallmark.
Patriotic blue-white-red rings in 18 karat gold. Set of three rings, one set with a sapphire, the second with a colorless cubic zirconia, and the third with a round ruby. These three rings are independent and can be worn individually or together to form the colors of the French flag. Vintage rings, circa 1980, France. Sport jewelry collection.
Hallmarks: eagle head and maker’s mark PM
Finger size: 58 EU or 8.25 US (resizing possible)
Estimated weight of sapphire: 0.05 carats
Estimated weight of ruby: 0.05 carats
Patriotic marquise ring in 18 karat gold (750 thousandths) and silver. Antique marquise-style ring set with a row of rose-cut diamonds, bordered by a row of 12 rubies and a row of 12 sapphires, symbolizing the colors of the French flag. Antique marquise ring, circa 1870.
Hallmarks: owl and swan (french state hallmark for 18 karat gold and silver)
Finger size: 48 EU or 4.25 US (resizing possible)
Dimensions of the ring head: 21 x 8 mm
Total estimated weight of sapphires: 0.07 carats
Total estimated weight of rubies: 0.07 carats
Total estimated weight of diamonds: 0.08 carats
Condition: antique setting, scratches from use
Weight: 2.92 gr
More information : The wearing of patriotic jewelry as a sign of protest or resistance became widespread after the French Revolution (1789-1799) and during the Napoleonic era.
Art Deco sapphire platinum ring in 18 karat white gold and platinum. Antique ring with four-lobed bezel, set with a 0.08-carat old-cut diamond in the center. The top is decorated with eight navette-cut (synthetic) sapphires and eight rose-cut diamonds. The settings are finely beaded. Art deco ring, circa 1930, France.
Eagle head hallmark and dog head hallmark (French State hallmarks for 18 karat gold and platinum).
Sapphire pearl cocktail ring in 18 karat (750) yellow gold. Cocktail ring centered on a 9 mm-diameter flat-bottomed pearl surrounded by 14 natural blue round sapphires. The ring has a large openwork basket 8 mm high. Retro ring, circa 1940.
Owl hallmark (french state hallmark for 18 karat gold)
Finger circumference: 55 UE or 7.25 (can be changed)
Ring head diameter: 16 mm Basket height: 12 mm (with pearl); 8 mm (without pearl)
Art Deco sapphire ring in 18 karat gold and platinum. Oval marquise-shaped ring with an old mine cut diamond in its center, surrounded by four navette-cut synthetic sapphires. The top of the ring is set with 18 rose-cut diamonds. Antique ring, Art Deco, circa 1920-1930, France.
Eagle head and dog head hallmarks (french state hallmark for 18 karat gold), goldsmith’s hallmark illegible.
Finger size: 55 EU or 7.25 US (can be resized).
Note: the ring has been rhodium-plated to restore its lustre.
Condition: chips and scratches from use
Sapphire trilogy ring in 18 karat yellow gold (750). Vintage ring set with an oval-cut sapphire weighing approximately 0.90 carat. The sapphire has a midnight-blue color with green/yellow nuances. The central sapphire is surrounded by two diamond-like zirconium oxides. Vintage ring, circa 1990, France
Eagle head hallmark (French state hallmark for 18-karat gold) and goldsmith’s hallmark.
Finger circumference: 49 UE or 4.75 US (possible sizing)
Sapphire band ring in 18 karat (750) yellow gold. With a beautiful royal blue cushion-cut sapphire weighing approx. 1.06 carats. The sapphire has intense blue flashes. Vintage ring, circa 1950, France.
Owl hallmark (French state hallmark for 18 karat gold).
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, owl hallmark
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.
Owl hallmark, 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