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1920s Antique 3.78 Carat Diamond and Platinum Brooch

About the Item

A stunning, fine and impressive antique 1920s 3.78 carat diamond and platinum Art Deco brooch; part of our diverse antique jewelry and estate jewelry collections. This stunning, fine and impressive diamond brooch has been crafted in platinum. The pierced decorated, geometric shaped frame is ornamented with a feature 0.64Ct Old European round cut diamond, bezel set to the center of a trelliswork design. The feature diamond is flanked on either side with a 0.32Ct and 0.35Ct individually bezel set Old European round cut diamond, with a further two impressive bezel set Old European cut designs completing this linear array. The central diamond features horizontal and vertical supports, each embellished with an individually millegrain decorated bezel set diamond. Each sub-junction of the diagonal trellis design incorporates a horizontal rhombus shaped platinum setting, incorporating a pavé set Old European cut diamond. This platinum diamond brooch is further embellished with seventy-eight pavé set eight-cut diamonds, completing the paralleling angular border. The millegrain decorated brooch secures to the reverse with a hinged pin and clasp. This antique diamond brooch has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum. This stunning 1920s Art Deco brooch is supplied with three independent diamond grading report certificates for the feature diamonds, in addition to an independent diamond grading report card for the supporting stones. Images do not always reflect the true color and brilliance of gemstones and diamonds. The video however provides a truer representation of the actual color and showcases each stone. Condition This antique 1920s Art Deco brooch is exceptional quality, set with stunning very high color graded feature diamonds displaying a fine white color, brilliance and presence. The well color matched supporting diamonds display a fine white color and brilliance. The brooch is an exceptional gauge of platinum and is in excellent condition. Reflections in photographs may detract from the true representation of this fine example of antique diamond jewelry/estate jewelry. Diamond Quality Feature Diamond One Color G Clarity VS2 Cut Old European Content 0.64 carat Dimensions 5.65mm x 5.54mm x 3.10mm Feature Diamond Two Color F Clarity VS2 Cut Old European Content 0.35 carat Dimensions 4.48mm x 4.36mm x 2.52mm Feature Diamond Three Color G Clarity VVS2 Cut Old European Content 0.32 carat Dimensions 4.47mm x 4.34mm x 2.51mm Supporting Diamonds Color (average grades) G/H Clarity (average grades) VS2/SI2 Cut Old European/Eight Content 2.47 carats Total Diamond Content 3.78 carats Dimensions Length of setting 5cm/1.97" Width of setting 2.38cm/0.94" Across pin 4.9cm/1.93" Height of setting 2.6mm/0.1" Weight 7.7 grams Date: Circa 1920 Item Ref. SKU: C4310
  • Metal:
    Platinum
  • Stone:
    Diamond
  • Stone Cut:
    Round Cut
  • Weight:
    7.7 g
  • Dimensions:
    Height: 0.1 in (2.54 mm)Width: 0.94 in (23.88 mm)Length: 1.97 in (50.04 mm)
  • Style:
    Art Deco
  • Lab Report Available:
    IDGL 828 - 6713
  • Place of Origin:
    Unknown
  • Period:
    1920-1929
  • Date of Manufacture:
    Circa 1920
  • Condition:
    Please see main description.
  • Seller Location:
    Jesmond, GB
  • Reference Number:
    Seller: C43101stDibs: LU128210680882

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