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Circa 1910 Antique 5.45 Carat Diamond and Platinum Bar Brooch

About the Item

A stunning, fine and impressive antique 5.45 carat diamond and platinum bar brooch; part of our antique jewellery and estate jewelry collections. This stunning, fine and impressive antique diamond brooch has been crafted in platinum. The subtly tapering linear setting displays three feature Old European cut diamonds to the centre, accented with fifteen pavé set Old European round cut diamonds graduating in size. This antique brooch secures to the reverse with a hinged pin and safety catch. This old cut diamond line brooch has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum. This impressive antique brooch is supplied with three independent diamond grading report certificates for the feature stones, in addition to an independent diamond grading report card for the supporting stones. Such bar brooches with larger set diamonds are becoming increasingly difficult to locate. 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 impressive antique diamond bar brooch is excellent quality, set with very high color graded diamonds displaying a fine white color, brilliance and presence. The brooch is an excellent gauge of platinum and is in excellent condition. Reflections in photographs may detract from the true representation of this fine example of antique jewellery/estate jewelry. Diamond Quality Feature Diamond One Color H Clarity SI1 Cut Old European Content 0.31 carat Dimensions 4.30mm x 4.19mm x 2.78mm Feature Diamond Two Color H Clarity SI1 Cut Old European Content 0.30 carat Dimensions 4.36mm x 4.14mm x 2.76mm Feature Diamond Three Color H Clarity SI2 Cut Old European Content 0.29 carat Dimensions 4.21mm x 4.16mm x 2.68mm Supporting Diamonds Color (average grades) H/I/J Clarity (average grades) VS2/SI2 Cut Old European Content 4.55 carats Total Diamond Content 5.45 carats Dimensions Length of setting 7.4cm/2.91" Width of setting 5.5mm/0.22" Across pin 7.05cm/2.78" Height of setting 2.92mm/0.11" Weight 7.76 grams Date: Circa 1910 Item Ref. SKU: C5623
  • Metal:
    Platinum
  • Stone:
    Diamond
  • Stone Cut:
    Old European Cut
  • Weight:
    5.45 ct
  • Dimensions:
    Height: 0.11 in (2.8 mm)Width: 0.22 in (5.59 mm)Length: 2.91 in (73.92 mm)
  • Lab Report Available:
    IDGL 828-7044
  • Place of Origin:
    Unknown
  • Period:
    1910-1919
  • Date of Manufacture:
    1910
  • Condition:
    Please see main description.
  • Seller Location:
    Jesmond, GB
  • Reference Number:
    Seller: C56231stDibs: LU128217929992
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