Global Gemology
Edwardian Era Antique 1.50 ctw. Old Mine Cut Diamond Brooch in Platinum & 18K Gold
Edwardian Era Antique 1.50 ctw. Old Mine Cut Diamond Brooch in Platinum & 18K Gold
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This gorgeous brooch is an authentic, handmade Edwardian Era piece that was created circa 1901-1915. Edwardian Era Antique * Handmade, circa 1901-1915 * Approximately 1 1/2 carats of diamonds * Platinum top, 18K gold reverse * Airy filigree design with fine millegrain detailing * Round hinge with early handmade safety catch * Articulated dangle * 39 x 26mm overall measurements * Gross weight of 5.8 grams The Edwardian Era was named after King Edward VII, whose reign lasted from 1901 to 1910. The strength of platinum was showcased as diamonds were set in airy, lace-like, openwork filigree settings. Millegrain (or milgrain) detailing was common, giving a soft, coin edge look to platinum pieces. Ribbons, bows, tassels and garlands were all popular motifs during the Edwardian jewelry period. Antique Cut Diamonds Approximately 1 1/2 carats total * 1 Old Mine Cut Diamond = 0.50 ct., H color, SI2 clarity * 4 Old Mine Cut Diamonds = 0.50 ct. total, G-I color, SI2-I1 clarity * 8 Old Mine Cut Diamonds = 0.40 ct. total, G-I color, VS2-SI2 clarity * 20 Antique Rose Cut Diamonds = 0.10 ct. total **MISSING 1 SMALL ROSE CUT DIAMOND** Additional Documentation The sale will include a digital copy of an Appraisal Report, for insurance purposes. |
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Item Details | |
Metal: | Platinum & 18K Gold |
Finish: | Millgegrain |
Size: | 39 x 26mm |
Hallmarks: | None (Tests Platinum & 18K) |
Gross Weight: | 5.8 grams (3.8 dwts) |
Diamond Details | |
Quantity: | 33 |
Cut: | • 13 - Old Mine Cut • 20 - Antique Rose Cut |
Color | G-I |
Clarity: | VS2-I1 |
Measurements: | • 1 Old Mine Cut @ 5.00 x 4.80 x 2.80mm • 4 Old Mine Cuts @ 3.00 x 2.00mm • 8 Old Mine Cuts @ 2.20mm Diameter • 20 Antique Rose Cuts @ 1.00 to 1.50mm Diameter |
Carat Weight: (approximate) |
• 1 Old Mine Cut Diamond = 0.50 ct. • 4 Old Mine Cut Diamonds = 0.50 ctw. • 8 Old Mine Cut Diamonds = 0.40 ctw. • 20 Antique Rose Cut Diamonds = 0.10 ctw. |
Total Diamond Weight: (approximate) |
1.50 ct. |











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Free Shipping
Free shipping within the continental United States. International buyers please contact us via email for shipping estimates. All orders are packaged with care, and are trackable via UPS, FedEx, or USPS.
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Our Guarantee
Every item in our inventory has been carefully examined by a Graduate Gemologist and Certified Master Appraiser. Your order is guaranteed to be as described and pictured or you will receive a 100% refund.
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Return Policy
We have a 3-day return policy, which means you have 3 days after receiving your item to request a return. A 15% restocking fee will be deducted from all returns.
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Complimentary Appraisal
With your purchase, you will receive a digital appraisal report that can be used to obtain insurance coverage. Simply forward the .pdf file to your insurance agent and you're good to go!