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Pederzani Invisible Setting Ruby Diamond Flower Brooch Yellow White Gold Italian

About the Item

Pederzani invisibly-set ruby and diamond flower brooch in 18kt yellow and white gold, late 20th / early 21st century, Italy. Unravel the mysteries of the world’s most intricate gem setting technique – the invisible setting, pioneered by Van Cleef & Arpels in 1933 and here ingeniously mastered by Italian jeweler Pederzani. Our spotlight shines on this vintage flower brooch by Italian jeweler Pederzani, boasting over 10 carats of fiery red rubies invisibly set on its petals. Paired with round brilliant cut diamonds, this masterpiece exudes elegance and sophistication, making it the perfect Valentine's gift. The invisible setting technique hides metal beneath gemstones, creating a stunning illusion of floating gems. The stones are not glued! Instead, they are cut with grooves underneath that are locked into a thin wire framework. Each gem is individually cut and set to precision, resulting in a flawless surface of uninterrupted color and unparalleled brilliance. The invisible setting is one of the most complex, challenging and coveted techniques in the world of fine jewelry. TECHNICAL DATA • Rubies: estimated 10.5ct in total. • Diamonds: Estimated 2.7ct in total, G/H color, VVS clarity. • Signed “PEDERZANI”, stamped “750” for 18kt gold, later Portuguese import marks for 18kt gold. • Dimensions: 4.3 x 3.0 cm. • Weight: 19.7g. NOTES This item is in good condition, with marks and scratches consistent with general age and wear. Antique, period and vintage pieces, both signed and unsigned, are being offered as worn. Unless otherwise stated, all weights and quality factors have been graded as mounting permitted and using classic gemology and standard gemological equipment and might slightly differ from the assessments provided by other gemologists. Assessments related to period of manufacture or geographic origin of gemstones are expert opinions and may differ from the assessments provided by other professionals. Colors in the pictures/videos might slightly differ from the colors in real life. When certificated stones are being offered, the certificate or report will be mentioned. For additional information or clarification, please get in touch and our in-house team of expert GIA Graduate Gemologists and Registered Appraisers/Valuers will be happy to help. Upon request, every item sold by us will be accompanied by a complimentary valuation, which you can use for insurance, authenticity and reference and safekeeping purposes; this will contain a detailed description, technical information and photographic records of the item. GENERAL NOTES We are members of the following associations: Watch Trader Association (WTA), Gemological Institute of America (GIA) Alumni, Associação dos Peritos Avaliadores Oficiais de Ourivesaria e Joalharia (APAOINCM), Associação Portuguesa dos Antiquários (APA) and International Federation of Art and Antique Dealer Associations (CINOA).
  • Creator:
  • Metal:
    Gold,18k Gold,White Gold,Yellow Gold
  • Stone:
    Diamond,Ruby
  • Stone Cut:
    Square Cut
  • Weight:
    19.7 g
  • Dimensions:
    Width: 1.19 in (30 mm)Length: 1.7 in (43 mm)
  • Style:
    Modern
  • Place of Origin:
    Italy
  • Period:
    Late 20th Century
  • Date of Manufacture:
    Late 20th / Early 21st Century
  • Condition:
    Wear consistent with age and use.
  • Seller Location:
    Lisbon, PT
  • Reference Number:
    Seller: 568/23D1stDibs: LU2150224271762

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Ben Rosenfeld Diamond Ruby Duck Brooch 18K Yellow White Gold, Mid-Century, 1960s
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Ben Rosenfeld Mid-Century diamond and ruby duck brooch in 18kt yellow and white gold, English, 1960s. Made in 1961 and modelled as a mallard duck, the animal’s body in textured gold with a polished tail, the head and feet embellished with a Florentine finish, further accented with circular ruby and diamond eyes. This jewel is secured to reverse with a hinged pin and roller clasp fitting. Diamonds: six stones; single-cut; estimated 0.05 carats in total. Rubies: estimated 0.02 carats in total. Maker’s mark “BRLD” for Ben Rosenfeld; date letter “m” for 1961; London hallmark for 18kt gold. Dimensions: 4.6 x 3.0 cm. Gross Weight: 13.90g. Ben Rosenfeld was a British jewelry designer based in Hatton Garden, trading from around 1959 until 1987. His designs gained an international following throughout the 1960s and 1970s, examples of which can be found in the Victoria & Albert Museum, London. This item is in good condition, with marks and scratches consistent with general age and wear. Antique, period and vintage pieces, both signed and unsigned, are being offered as worn. Unless otherwise stated, all weights and quality factors have been graded as mounting permitted and using classic gemology and standard gemological equipment and might slightly differ from the assessments provided by other gemologists. Assessments related to period of manufacture or geographic origin of gemstones are expert opinions and may differ from the assessments provided by other professionals. Colors in the pictures/videos might slightly differ from the colors in real life. When certificated stones are being offered, the certificate or report will be mentioned. For additional information or clarification, please get in touch and our in-house team of expert GIA Graduate Gemologists and Registered Appraisers/Valuers will be happy to help. Upon request, every item sold by Espadim 1985...
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