La Belle Époque style Pendant brooch of gold and silver with diamonds and sapphires. Beautiful jewelry by St. Petersburg true style "Catherine Kostrigina"

La Belle Époque style Pendant brooch of gold and silver with diamonds and sapphires. Beautiful jewelry by St. Petersburg true style "Catherine Kostrigina"

A belle époque sapphire and diamond brooch, circa 1910 The rectangular plaque finely pierced and millegrain-set with single-cut diamonds, set to the centre with three graduated old brilliant-cut diamonds interspersed with single-cut diamond floral decoration and courses of calibré-cut sapphires, diamonds approx. 2.00ct. total, width 4.1cm., fitted case

A belle époque sapphire and diamond brooch, circa 1910 The rectangular plaque finely pierced and millegrain-set with single-cut diamonds, set to the centre with three graduated old brilliant-cut diamonds interspersed with single-cut diamond floral decoration and courses of calibré-cut sapphires, diamonds approx. 2.00ct. total, width 4.1cm., fitted case

A Belle Epoque sapphire and diamond brooch, circa 1910. The openwork millegrain cartouche of ribbon and swag design, set with single and brilliant-cut diamonds, the upper interlaced ribbons accented by two oval-cut sapphires, suspending an upper and lower swag each terminating in a central oval-cut sapphire, diamonds approx. 3.00cts total. #BelleÉpoque #brooch

A Belle Epoque sapphire and diamond brooch, circa 1910. The openwork millegrain cartouche of ribbon and swag design, set with single and brilliant-cut diamonds, the upper interlaced ribbons accented by two oval-cut sapphires, suspending an upper and lower swag each terminating in a central oval-cut sapphire, diamonds approx. 3.00cts total. #BelleÉpoque #brooch

An emerald and diamond brooch/pendant, ca 1915. Centrally-set with an old brilliant-cut diamond within an openwork quatrefoil set with alternating rows of calibré-cut emeralds and rose-cut diamonds, accented with circular-cut emerald and single-cut diamond flowers, principal diamond approx. 0.85ct, by amelia

An emerald and diamond brooch/pendant, ca 1915. Centrally-set with an old brilliant-cut diamond within an openwork quatrefoil set with alternating rows of calibré-cut emeralds and rose-cut diamonds, accented with circular-cut emerald and single-cut diamond flowers, principal diamond approx. 0.85ct, by amelia

A Belle Epoque sapphire, diamond and cultured pearl brooch, circa 1910, with later modification. In April 1972, the cushion-shaped diamond weighing 17.13 carats was removed from the centre of the brooch and replaced with the cultured pearl, to make it a more suitable jewel for every-day wear. #BelleÉpoque #brooch

A Belle Epoque sapphire, diamond and cultured pearl brooch, circa 1910, with later modification. In April 1972, the cushion-shaped diamond weighing 17.13 carats was removed from the centre of the brooch and replaced with the cultured pearl, to make it a more suitable jewel for every-day wear. #BelleÉpoque #brooch

early 20th century diamond, emerald and pearl pendant/brooch, circa 1910.

early 20th century diamond, emerald and pearl pendant/brooch, circa 1910.

Emerald and diamond brooch circa 1900. Designed as a tied ribbon, millegrain set with circular-cut diamonds, accented with carrè cut emeralds, detachable pin to reverse.

Emerald and diamond brooch circa 1900. Designed as a tied ribbon, millegrain set with circular-cut diamonds, accented with carrè cut emeralds, detachable pin to reverse.

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