Platinum and Opal Brooches

Price guide to antique and vintage platinum and opal brooches. Opal was rare and very valuable in antiquity. In Europe it was a gem prized by royalty. Until the opening of vast deposits in Australia in the 19th century the only known source was Červenica beyond the Roman frontier in Slovakia. Reference: Wikipedia

Vintage Petri 14k Gold and Platinum Diamond Opal Flower Brooch Pin

$1,795.00
End Date: Thursday Feb-7-2019 18:24:58 PST
Buy It Now for only: $1,795.00
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Vintage 14k Yellow gold & Platinum Brooch/Pin/Pendant with Diamond and Opal

$2,550.00
End Date: Sunday Jan-27-2019 9:39:23 PST
Buy It Now for only: $2,550.00
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McTeigue Platinum 18k Fish 18.64ctw Opal Diamond Emerald Pin Brooch $19,750

$11,400.00
End Date: Friday Feb-1-2019 13:18:24 PST
Buy It Now for only: $11,400.00
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Magnificent Black Australian Opal Stingray Platinum Brooch Pin

$9,719.99
End Date: Friday Jan-25-2019 19:01:39 PST
Buy It Now for only: $9,719.99
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ART DECO PLATINUM/ 14K YELLOW GOLD BROOCH WITH OPALS AND DIAMONDS #H32

$950.00
End Date: Wednesday Jan-30-2019 9:14:24 PST
Buy It Now for only: $950.00
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Platinum 26.07tcw Boulder Opal Diamond Ruby Sapphire Star Pendant Brooch 21.5g

$3,880.00
End Date: Wednesday Feb-13-2019 11:27:13 PST
Buy It Now for only: $3,880.00
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Vintage 2.50ct Diamond & Black Opal Platinum & 18K Yellow Gold Hand Made Brooch

$6,600.00
End Date: Friday Feb-8-2019 13:56:28 PST
Buy It Now for only: $6,600.00
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Phenomenal Opal Brooch, Platinum Ruby Diamonds Demantoid, Um 1910/Brilliant

$5,580.61
End Date: Wednesday Feb-13-2019 6:06:50 PST
Buy It Now for only: $5,580.61
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Brooch Antique Edwardian Platinum & 15ct Opal Bar Brooch Cased

$248.18
End Date: Wednesday Feb-6-2019 9:18:14 PST
Buy It Now for only: $248.18
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Antique Brooch Art Nouveau Diamond Opal Ruby Platinum Gold French (5147)

$7,250.00
End Date: Saturday Feb-16-2019 6:05:09 PST
Buy It Now for only: $7,250.00
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Magnificent Black Australian Boulder Opal Designer Brooch Pin 18k

$3,699.99
End Date: Friday Feb-15-2019 17:03:42 PST
Buy It Now for only: $3,699.99
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Huge Heavy Platinum 30ct Boulder Gem Opal .39ct Diamond Brooch Pendant 25.8g

$3,680.00
End Date: Friday Feb-22-2019 20:18:55 PST
Buy It Now for only: $3,680.00
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Art deco natural opal platinum diamond brooch 2.9g

$2,416.47
End Date: Wednesday Feb-20-2019 12:14:19 PST
Buy It Now for only: $2,416.47
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Boulder Opal Diamond Pendant Brooch Platinum 900,Yellow Gold (18K) Bracelet Cara

$557.00
End Date: Friday Feb-22-2019 23:15:46 PST
Buy It Now for only: $557.00
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18K Yellow Gold and Platinum Diamond and Opal Feather Brooch

$2,650.00
End Date: Sunday Feb-17-2019 13:37:51 PST
Buy It Now for only: $2,650.00
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18K Yellow Gold and Platinum Diamond and Blue Green Opal Oval Pendant Brooch

$3,000.00
End Date: Monday Feb-11-2019 10:01:29 PST
Buy It Now for only: $3,000.00
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Antique Charleston & Co Diamond Opal & Demantoid Garnet Butterfly Brooch

$7,000.00
End Date: Wednesday Feb-20-2019 12:41:43 PST
Buy It Now for only: $7,000.00
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Art Deco 1.08ct Opal and 1.38cts Diamond Platinum Brooch

$2,938.95
End Date: Thursday Jan-31-2019 14:44:40 PST
Buy It Now for only: $2,938.95
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Art Deco 1.08ct Opal and 1.38cts Diamond Platinum Brooch

$3,079.28
End Date: Friday Feb-1-2019 2:31:40 PST
Buy It Now for only: $3,079.28
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