Antique Edwardian Platinum Diamond Brooch With Onyx and Emerald Accents

Item Details

An antique Edwardian platinum diamond brooch with onyx and emerald accents. The brooch features a platinum filigree design with an old European cut center diamond, and is secured with an 18K white gold stem.

Metal Type: Platinum and 18K White Gold
Hallmarks: 100 IRID 900 PLAT, 18KT
Total Weight: 4.30 dwt
Brooch or Pin Closure Type: C-clasp and Pin

CENTER DIAMONDS
Count: 1
Shape: Old European Cut
Color Grade: I
Clarity Grade: VS1
Dimensions: 4.50 mm
Carat Weight: 0.33 ct

SIDE DIAMONDS
Count: 18
Shape: Old European Cut and Single Cut
Color Grade: G – I
Clarity Grade: SI1 – I1
Dimensions: 1.40 mm – 2.30 mm
Carat Weight: 0.36 ctw

SIDE STONES
Count and Type: 8 Black Onyx and 20 Natural Emerald
Shape: Moderate Square
Dimensions: 0.90 mm – 1.00 mm average

• This item has been evaluated and verified by an independent Graduate Gemologist (CINCDU).

• All diamond and gemstone grading is done under GIA standards as the mounting permits, where gemstones are present. All weights and measurements are estimated and approximate.

Condition

- minor markings throughout.

Dimensions

- brooch measures approximately 1.50” long.
- total approximate weight, inclusive of all materials, is 4.30 dwt.

Item #

17CIN205-013