A French Belle Epoque pink sapphire and diamond ring set in platinum. The classic cluster ring centers on an oval Ceylon pink sapphire weighing 3.87 carats, surrounded by 11 old mine-cut diamonds with an approximate total weight of 1.32 carats. French control mark. American Gemological Laboratory certificate # CS 64359 stating that the center stone is natural corundum pink sapphire from Ceylon; low temperature heating. Provenance: Lucie Bigelow Rosen
An American Art Deco platinum ring with diamonds and sapphires. The ring has a center old European-cut diamond with an approximate weight of .50 carat flanked by 4 calibre cut sapphires, and a round-cut sapphire with an approximate weight of .57 carat flanked by 4 single cut diamonds. The ring is made as a double gypsy ring with the diamonds and sapphires in a ''ying-yang'' motif of positive-negative color.
An English Antique 15 karat gold/silver top ring with sapphire and diamonds. The ring centers on a no heat oval-cut sapphire with an approximate weight of .95 carat, 14 old mine-cut diamonds with an approximate total weight of 1.40 carats, and 19 rose-cut diamonds with an approximate total weight of .19 carat. Designed in a classic oval cluster motif.
A Mid-20th Century 18 karat gold and platinum ring with diamonds and turquoise by Cartier. The asymmetrical bombé form centers 46 cabochon turquoises edged by gadrooned gold wiretwist and round brilliant-cut diamond shoulders pavé-set with 52 round brilliant-cut diamonds with an approximate total weight of 3.70 carats, completed by a ribbed shank. Circa 1956.A similar ring set with faceted sapphires is pictured in Amazing Cartier, Jewelry Design Since 1937, by Nadine Coleno, Flammarion Publishers, 2008, page 165.Often worn two or three to a hand, these bold, luxurious and colorful "cocktail" rings were the perfect expression of women''s post-World War II war social and expressive freedom. Under the direction of Jeanne Toussaint, the eternally stylish creative director, Cartier produced a variety of these at once playful and sensual jewels.
An Art Deco platinum ring with diamonds and sapphires. The ring has a center oval diamond with an approximate weight of .80 carat, I/J color, VS clarity and 60 old European-cut diamonds with an approximate total weight of 1.20 carats, and 12 calibre-cut sapphires. The ring is designed in a classic Art Deco plaque motif.
Dimensions: Ring size 5-3/4; this ring can be sized.
An estate platinum ring with a natural Ceylon sapphire and diamonds. The ring has a step-cut, no-heat sapphire weighing approximately 7.14 carats of Sri Lankan (Ceylon) origin. The platinum mount is set with 2 half moon diamonds with an approximate total weight of 1.75 carat, G/H color, VS/SI clarity. Gemological Institute of America Certificate # 5171545750 stating Sri Lanka origin, no indications of heating. Lotus Report 8651-1092.
An American Art Nouveau 18 karat gold, enamel, sapphire and diamond ring by Marcus & Co. The ring has a cushion-cut blue sapphire with an approximate weight of 8.65 carats, and 27 old European-cut diamonds with an approximate total weight of .32 carat. The blue sapphire is most likely of Ceylon origin with no heat treatment evident. The center stone is held in place with gold tendrils that flow throughout the ring in extravagant Art Nouveau motifs. The multi-generational New York firm of Marcus & Co was founded by an ambitious young German immigrant who had trained at a prominent Dresden court jeweler. In 1892, after working with Charles Lewis Tiffany, Hermann Marcus and his sons William and George together set up a business that soon became a glittering New York society institution renowned not only for its superb diamonds, colored stones and pearls, but also its instantly recognizable, original design style. The firm produced great jewels in the Art Nouveau and Arts & Crafts sensibility, with George, the artist/designer, drawing inspiration from sources as diverse and exotic as the contemporary French masters, the Moghuls and Maharajahs, the garland style of the Ancien Regime, and the genius of Renaissance goldsmiths. George''s distinctive, confident hand was always discernible in Marcus creations. Working as a team with George, his brother William was a gem and pearl conn
oisseur who travelled the world hunting fine gem material, including purchasing the entire production of never-before-seen black opal in Lightning Ridge Australia in 1908. Marcus exhibited at the 1900 Exposition Universelle in Paris, and their work won prizes at the prestigious Society of Arts & Crafts of Boston. Plique-a-jour enamel was an art in which Marcus & Co. excelled, creating jewels with unprecedented three-dimensional depth in this medium. The firm and family were well-known for their charitable activities and promotion of young jewelers such as Raymond Yard.
An estate platinum cluster ring with blue sapphire and diamond. The ring has an oval blue sapphire weighing 5.08 carats, and 50 round-cut diamonds with an approximate total weight of 1.02 carats with a G-H color and VS clarity. The ring is composed of two diamond set rings surrounding the center sapphire. Gemological Institute of America Certificate #119003864859 stating that the sapphire is from Ceylon and displays no indications of heating.
Dimensions: Ring size 6-1/4; this ring can be sized.
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