View all items from One Of A Kind Vintage Jewelry & Timepieces sale

Antique Sterling Diamond Brooch with 10K Backing

Item Details

Style: Antique
Materials: 14K Gold, 10K Gold, Sterling Silver
Brooch Closure Type: Locking C-Clasp
Hallmarks: Unmarked
Total Weight (grams): 4.50
Additional Information: Sterling brooch, 10K backing and 14K clasp
Primary Stone(s) Type: Diamond
Primary Stone(s) Shape: Circular Brilliant Cut
Primary Stone(s) Dimensions: 2.20 – 3.30 mm
Total Primary Stone(s) Carat Weight: 0.41 ctw
Primary Stone(s) Color Grade: G – I
Primary Stone(s) Clarity Grade: SI1 – SI2
Secondary Stone(s) Type: Diamond
Secondary Stone(s) Shape: Polki
Secondary Stone(s) Inclusions: Surface Reaching Fractures, Surface Reaching Inclusions
  • This item has been evaluated and verified by a GIA Graduate Gemologist.
  • All diamond and gemstone grading is done under GIA standards as the mounting permits, where gemstones are present; where mountings impede accurate measurements, (estimated) dimensions are provided. All weights and measurements are estimated and approximate. Treatments for jadeite and other gemstones are assumed unless otherwise noted.
  • Jewelry may contain minor markings/imperfections throughout.
  • While we represent items accurately on our site to the best of our ability, the color calibration of computer monitors can vary, causing colors to appear slightly different from one monitor to another. Due to this, please note that precise color representation of metal and gemstones is not always possible.


- the closure has been replaced.
- where the stone is missing there is a broken prong.
- the polki diamonds are chipped and abraded.

Item #


Terms & Conditions

Have a similar piece to sell? Get in touch with one of our experts.

Request A Consultation

Full-service selling solutions for home or business-minded consignors.

Learn More