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Lot 1791 THE STAR RUBY HAS EMERGED AS ONE OF THE MOST FASCINATING EXAMPLES OF NATURE'S ALCHEMY IN THE GEM KINGDOM. ALTHOUGH SIGNIFICANTLY SIZED HIGH QUALITY RUBIES ARE UNCOMMONLY FOUND IN NATURE, IT IS EVEN MORE DIFFICULT TO FIND A SIGNIFICANTLY SIZED HIGH QUALITY STAR RUBY. RARE IS STAR RUBIES' OPTICAL OCCURRENCE, IT IS ONLY FOUND IN A VERY SMALL PERCENTAGE OF RUBIES MINED AROUND THE WORLD. EVEN IF FOUND, MANY ARE IMMEDIATELY HEAT-TREATED IN ORDER TO ENHANCE THE COLOUR SATURATION AND TRANSPARENCY OF THE GEMSTONE, WHICH IN TURN ELIMINATES THE RUTILE INCLUSIONS RESPONSIBLE FOR THE UNIQUE STAR EFFECT.
STAR RUBIES DISPLAY A PHENOMENON KNOWN AS ASTERISM; THE UNIQUE STAR EFFECT IS GENERATED BY THE PRESENCE OF RUTILE, A MINERAL WHICH METHODICALLY ARRANGES ITSELF IN FINE NEEDLE-LIKE CRYSTALS WITHIN THE STONE. WHEN THE GEMSTONE IS CUT INTO CABOCHON, A LENS SHAPE FORMAT, THESE NEEDLES, INTERSECTING AT 60 DEGREE ANGLES FROM EACH OTHER, PRODUCE A LUMINOUS STAR EFFECT AS A POINT OF LIGHT REFLECTS ON THE GEM. THE STAR REFLECTION APPEARS TO FLOAT ON THE SURFACE OF THE STONE ACHIEVING THE DAZZLING PHENOMENON.
GEM QUALITY STAR RUBIES DISPLAY A MARVELOUS 6-RAY STAR, WHICH HAS TO BE INTACT AND SMOOTH WHILE EQUALLY DISTINCT AND CENTERED. HOWEVER, FOR THE PHENOMENON TO FULLY TRANSPIRE, THE BODY COLOUR OF THE GEMSTONE HAS TO BE INTENSELY SATURATED. IN ADDITION, THE TONE OF THE GEMSTONE HAS TO BE DEEP ENOUGH TO JUXTAPOSE THE STAR AGAINST, BUT NOT AS DEEP AS TO AFFLICT ANY VIBRANT RED BODY COLOUR PERTAINING TO A HIGH QUALITY STONE.
IT IS EXCEEDINGLY DIFFICULT TO FIND ANY FINE GEM STONE GREATER THAN FIVE CARATS, LET ALONE FIND A STAR RUBY GREATER THAN 10 CARATS. LOT 1791 IS AN EXTRAORDINARY FIND WHICH IS NOT ONLY 19.53 CARATS, BUT IS ALSO OF EXCEPTIONAL COLOUR EXHIBITING AN IMPRESSIVE STAR. THIS COMBINATION CONTRIBUTES GREATLY TO THIS STONE'S RARITY AND DESIRABILITY, WHAT CONNOISSEURS CLASSIFY AS TRULY GEM QUALITY.
STAR RUBIES DISPLAY A PHENOMENON KNOWN AS ASTERISM; THE UNIQUE STAR EFFECT IS GENERATED BY THE PRESENCE OF RUTILE, A MINERAL WHICH METHODICALLY ARRANGES ITSELF IN FINE NEEDLE-LIKE CRYSTALS WITHIN THE STONE. WHEN THE GEMSTONE IS CUT INTO CABOCHON, A LENS SHAPE FORMAT, THESE NEEDLES, INTERSECTING AT 60 DEGREE ANGLES FROM EACH OTHER, PRODUCE A LUMINOUS STAR EFFECT AS A POINT OF LIGHT REFLECTS ON THE GEM. THE STAR REFLECTION APPEARS TO FLOAT ON THE SURFACE OF THE STONE ACHIEVING THE DAZZLING PHENOMENON.
GEM QUALITY STAR RUBIES DISPLAY A MARVELOUS 6-RAY STAR, WHICH HAS TO BE INTACT AND SMOOTH WHILE EQUALLY DISTINCT AND CENTERED. HOWEVER, FOR THE PHENOMENON TO FULLY TRANSPIRE, THE BODY COLOUR OF THE GEMSTONE HAS TO BE INTENSELY SATURATED. IN ADDITION, THE TONE OF THE GEMSTONE HAS TO BE DEEP ENOUGH TO JUXTAPOSE THE STAR AGAINST, BUT NOT AS DEEP AS TO AFFLICT ANY VIBRANT RED BODY COLOUR PERTAINING TO A HIGH QUALITY STONE.
IT IS EXCEEDINGLY DIFFICULT TO FIND ANY FINE GEM STONE GREATER THAN FIVE CARATS, LET ALONE FIND A STAR RUBY GREATER THAN 10 CARATS. LOT 1791 IS AN EXTRAORDINARY FIND WHICH IS NOT ONLY 19.53 CARATS, BUT IS ALSO OF EXCEPTIONAL COLOUR EXHIBITING AN IMPRESSIVE STAR. THIS COMBINATION CONTRIBUTES GREATLY TO THIS STONE'S RARITY AND DESIRABILITY, WHAT CONNOISSEURS CLASSIFY AS TRULY GEM QUALITY.
A MAGNIFICENT STAR RUBY AND DIAMOND RING, BY ETCETERA
Closed27 November 2012
Price Realised
HKD 9,620,000
More Information
Specialist note
US$1,000,000-1,500,000