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 tank ring in 18 karat (750) rose gold. The ring is setted with a large round synthetic sapphire of intense blue. The ring is formed by a voluminous scroll motif, the sapphire set by four large claws forming a square setting. Tank ring, Retro period circa 1945.
Owl hallmark (french state hallmark for 18 karat gold)
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, 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
Art Deco style sapphire ring in white gold 18 karats. Important ring with an Art Deco style, within its center an intense blue sapphire of octagonal form. This is a natural sapphire from Madagascar. This sapphire is in close setting and surrounded by twenty-four brilliant diamonds set in grain, in a structure with pearl pattern. The shoulders of the ring are adorned with 10 brilliant cut diamonds. The ring has thirty-four diamonds in total. Perfect for an engagement ring, it is from late 20th century in an Art Deco style. Made in France.
Eagle head hallmark, Sté P. goldsmith hallmark.
Finger size : 53 EU or 6,5 US (possible to change the size)
Dimensions of the ring head : 14 mm x 13 mm
Estimated weight of the diamonds : 0,44 carat
Note : the photo of the certificate can be provided on request, it will be sent to the buyer.
Condition : Scratches inside the ring
Weight : 7.14 gr
A certificate has been established by the Bellerophon laboratory on 21/07/2022, here are the details below:
Estimated weight of the sapphire : 2.18 carats
Dimensions of the sapphire : 7.56 x 6.87 x 4.19 mm
Shape : octagonal
Identification : natural sapphire
Color : intense blue
Comment : indication of heating
Geographic origin : Madagascar
Pre-owned sapphire ring in yellow and white gold 18 karat. The ring is set with a natural round sapphire. The ring is made of two strands – one in yellow gold, the other in white gold – ending in a swirl around the sapphire. Vintage ring from the 1990s, France.
Marked with an eagle’s head
Finger size: 52 EU or 6 US (can be changed)
Estimated weight of the sapphire: 0,12 carat
Condition: Wears, sapphire with natural inclusions