![GIA Certified Natural Diamond Vintage Deco Pin Brooch Platinum 12418: GIA Certified Natural Diamond Vintage Deco Pin Brooch Platinum 12418 $12,000.00 PRODUCT DESCRIPTION GIA Certified Natural Diamond Pin. 1.20ct Round J-color I-1 clarity. All other side round diamonds:](https://p1.liveauctioneers.com/5584/333294/179930587_1_x.jpg?height=310&quality=70&version=1718745967)
Diamond Brooches & Pins
![GIA Certified Natural Diamond Vintage Deco Pin Brooch Platinum 12418: GIA Certified Natural Diamond Vintage Deco Pin Brooch Platinum 12418 $12,000.00 PRODUCT DESCRIPTION GIA Certified Natural Diamond Pin. 1.20ct Round J-color I-1 clarity. All other side round diamonds:](https://p1.liveauctioneers.com/5584/333294/179930587_1_x.jpg?height=310&quality=70&version=1718745967)
![Late Deco French Platinum & Diamond Double Clip Brooch: GUILD laboratories' certificates are as accurate as GIA AND AGL certificates, and Sumer collection stands a hundred percent behind Guild laboratory's certifications. Hall Marks on pin](https://p1.liveauctioneers.com/5870/332992/179756593_1_x.jpg?height=310&quality=70&version=1718238316)
![11.00 Carat Round Brilliant G SI1 Diamond 18k Two Tone Gold Pin: Title: 11.00 Carat Round Brilliant G SI1 Diamond 18 Karat Two Tone Gold Pin Metal: 18 Karat Two Tone Gold Gemstone 1: 11 Carat Diamond Number of Stones: 350 Color: G Clarity: SI1 Shape: Round Brillian](https://p1.liveauctioneers.com/3780/329167/177974223_1_x.jpg?height=310&quality=70&version=1715878703)
![Boucheron Vintage Bracelet Turquoise Diamond White Gold French Estate Jewelry: About the Item A gorgeous Boucheron vintage bracelet, made of 18k white gold, turquoise, rock crystal and diamond. Turquoise cabochons are shaped in truncated pyramids. Gems are bezel set in rectangul](https://p1.liveauctioneers.com/5584/333401/180019379_1_x.jpg?height=310&quality=70&version=1718743985)
![BROOCH YELLOW GOLD ONYX EMERALD DIAMOND: Brooch Yellow gold onyx emerald diamond Brand: Unsigned Jewelry Type: Brooch Material: 18K Yellow Gold Color: Gold Size: 34.0mm×24.4mm Accessories: None Accessories Notice: When purchasin](https://p1.liveauctioneers.com/6177/332981/179747217_1_x.jpg?height=310&quality=70&version=1718047231)
![A late Victorian chrysoberyl cat's eye and diamond cluster,: A late Victorian chrysoberyl cat's eye and diamond cluster, later mounted to a bar brooch. A circular cabochon chrysoberyl cat's eye claw set to the centre and surrounded by a row of old European cut](https://p1.liveauctioneers.com/1782/333411/180022770_1_x.jpg?height=310&quality=70&version=1718382283)
![ANTIQUE RUBY AND OLD CUT DIAMOND BAR BROOCH: ANTIQUE RUBY AND OLD CUT DIAMOND BAR BROOCH5.3 gram, 14 ct. gold.Set with rich vibrant colour rubies totalling approx. 3.30 ct. Bright and lively diamonds.W: 5.4 cm.](https://p1.liveauctioneers.com/7243/333894/180415814_1_x.jpg?height=310&quality=70&version=1718915230)
![Antique Art Deco 14k White Gold Aquamarine Diamond Open Filigree Bar Pin Brooch: An antique solid 14k white gold bar brooch. with 2 round brilliant cut natural aquamarines (5mm each / 1.0ctw), and 1 old european cut natural diamond ( H - SI1 ; 0.06ctw ). Measures 6.50x54.40mm and](https://p1.liveauctioneers.com/989/333732/180294640_1_x.jpg?height=310&quality=70&version=1718662636)
![A Victorian 15ct gold diamond set bar brooch,: A Victorian 15ct gold diamond set bar brooch, with a central row of graduated old European cut, old Swiss cut and old eight cut diamonds, all star set or grain set to box collets, hallmarked 15ct, 4.6](https://p1.liveauctioneers.com/1782/333411/180022725_1_x.jpg?height=310&quality=70&version=1718382283)
![A LATE 19TH CENTURY CULTURED PEARL AND DIAMOND PENDANT/BROOCH Of foliate and ribbon design,: A LATE 19TH CENTURY CULTURED PEARL AND DIAMOND PENDANT/BROOCH Of foliate and ribbon design, centring a cultured pearl, further set with rose- and old-cut diamonds, mounted in silver and gold, length 4](https://p1.liveauctioneers.com/533/333011/179775125_1_x.jpg?height=310&quality=70&version=1718097693)
![18K YELLOW GOLD AND DIAMOND RIBBON BROOCH, 13.2g: A vintage textured 18k yellow and white gold ribbon shaped brooch, set with small diamonds, with pin closure, marked 750.](https://p1.liveauctioneers.com/1124/333788/180327048_1_x.jpg?height=310&quality=70&version=1718732790)
![A RUBY AND DIAMOND PENDANT/BROOCH Of openwork flower design, set with single- and brilliant-cut: A RUBY AND DIAMOND PENDANT/BROOCH Of openwork flower design, set with single- and brilliant-cut diamonds and circular-cut rubies, mounted in gold, length 2.5cm](https://p1.liveauctioneers.com/533/333011/179775299_1_x.jpg?height=310&quality=70&version=1718097693)
![14K WHITE GOLD AND DIAMOND SPRAY BROOCH, 8.6g: A vintage white gold and diamond spray brooch, set with round, baguette, and marquise cut diamonds, with double pin closure, testing 14k. L. 3.8cm](https://p1.liveauctioneers.com/1124/333788/180326903_1_x.jpg?height=310&quality=70&version=1718732790)
![AN ANTIQUE DIAMOND STAR BROOCH in yellow gold and silver, designed as a twelve rayed star set thr...: AN ANTIQUE DIAMOND STAR BROOCH in yellow gold and silver, designed as a twelve rayed star set throughout with old and rose cut diamonds, the diamonds all totalling 1.0-1.2 carats, no assay marks, 2.7c](https://p1.liveauctioneers.com/6430/333787/180328615_1_x.jpg?height=310&quality=70&version=1718746274)
![18K WHITE GOLD, BLUE TOPAZ & DIAMOND BROOCH, 16.6g: An 18k white gold spray brooch, set with a central design of marquise cut blue topaz, surrounded by round brilliant and baguette cut diamonds, marked 18k, with pin closure. L. 5.8cm](https://p1.liveauctioneers.com/1124/333788/180326876_1_x.jpg?height=310&quality=70&version=1718732790)
![Victorian 18ct Gold Turquoise and Diamond Etruscan Brooch.: Victorian 18ct Gold Turquoise and Diamond Etruscan Brooch. HALLMARKS: marked for 18ct Gold MEASUREMENT: 35.3mm in diameter and 17mm deep CONDITION: Good](https://p1.liveauctioneers.com/9184/332128/179156421_1_x.jpg?height=310&quality=70&version=1717346843)
![A PAIR OF DIAMOND BROOCHES Each designed as a flower, centring a brilliant-cut diamond, petal: A PAIR OF DIAMOND BROOCHES Each designed as a flower, centring a brilliant-cut diamond, petal pavé-set with brilliant-cut diamonds, mounted in gold, Italian registry mark, length 3.3cm](https://p1.liveauctioneers.com/533/333011/179775272_1_x.jpg?height=310&quality=70&version=1718097693)
![18K YELLOW GOLD AND DIAMOND FROG BROOCH, 20g: An 18k yellow gold pin brooch in the shape of a frog perched on a leaf, set with small diamonds and two emerald eyes, marked Birks 18k, with pin closure. L. 5cm](https://p1.liveauctioneers.com/1124/333788/180326869_1_x.jpg?height=310&quality=70&version=1718732790)
![18ct Gold Ruby and Diamond Circular Brooch.: A true example of pure elegance. Rich, slightly pinkish red rubies are complimented by bright white diamonds in this beautiful circular brooch. A stunning addition to any outfit. HALLMARKS: mar](https://p1.liveauctioneers.com/9184/332128/179156422_1_x.jpg?height=310&quality=70&version=1717346843)
News about Diamond Brooches & Pins
![Kashmir unheated sapphire and diamond ring leads our five lots to watch](https://www.liveauctioneers.com/news/wp-content/uploads/2023/11/Hindman-Dec-6-Kashmir-sapphire-ring-for-lead.jpg)
Kashmir unheated sapphire and diamond ring leads our five lots to watch
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![De Grisogono diamond snake necklace leads our top five lots to watch](https://www.liveauctioneers.com/news/wp-content/uploads/2023/11/J-Garrett-Aux-Nov-26-De-Grisogono-necklace.jpg)
De Grisogono diamond snake necklace leads our top five lots to watch
[av_heading heading=’De Grisogono diamond snake necklace leads our top five lots to watch’ tag=’h1′ style=” subheading_active=” show_icon=” icon=’ue800′ font=’entypo-fontello’ size=” av-desktop-font-size-title=” av-medium-font-size-title=” av-small-font-size-title=” av-mini-font-size-title=” subheading_size=” av-desktop-font-size=” av-medium-font-size=” av-small-font-size=” av-mini-font-size=” icon_size=” av-desktop-font-size-1=” av-medium-font-size-1=” av-small-font-size-1=” av-mini-font-size-1=” color=” custom_font=” subheading_color=” seperator_color=” icon_color=” margin=’,,35px,’ av-desktop-margin=” av-desktop-margin_sync=’true’ av-medium-margin=” av-medium-margin_sync=’true’ av-small-margin=’,,20px,’ av-mini-margin=” av-mini-margin_sync=’true’ headline_padding=” headline_padding_sync=’true’ av-desktop-headline_padding=” av-desktop-headline_padding_sync=’true’ av-medium-headline_padding=” av-medium-headline_padding_sync=’true’ av-small-headline_padding=” av-small-headline_padding_sync=’true’ […]
![Sammy Davis Jr.-owned diamond ring to shine at Fellows Auctioneers Aug. 24](https://www.liveauctioneers.com/news/wp-content/uploads/2023/08/159243858_2_x.webp)
Sammy Davis Jr.-owned diamond ring to shine at Fellows Auctioneers Aug. 24
[av_heading heading=’Sammy Davis Jr.-owned diamond ring to shine at Fellows Auctioneers Aug. 24′ tag=’h1′ style=” subheading_active=” show_icon=” icon=’ue800′ font=’entypo-fontello’ size=” av-desktop-font-size-title=” av-medium-font-size-title=” av-small-font-size-title=” av-mini-font-size-title=” subheading_size=” av-desktop-font-size=” av-medium-font-size=” av-small-font-size=” av-mini-font-size=” icon_size=” av-desktop-font-size-1=” av-medium-font-size-1=” av-small-font-size-1=” av-mini-font-size-1=” color=” custom_font=” subheading_color=” seperator_color=” icon_color=” margin=’,,35px,’ av-desktop-margin=” av-desktop-margin_sync=’true’ av-medium-margin=” av-medium-margin_sync=’true’ av-small-margin=’,,20px,’ av-mini-margin=” av-mini-margin_sync=’true’ headline_padding=” headline_padding_sync=’true’ av-desktop-headline_padding=” av-desktop-headline_padding_sync=’true’ av-medium-headline_padding=” av-medium-headline_padding_sync=’true’ av-small-headline_padding=” av-small-headline_padding_sync=’true’ […]
![Bid Smart: Flag jewelry: Three cheers for the ruby, diamond and sapphire](https://www.liveauctioneers.com/news/wp-content/uploads/2023/07/besmart-1.jpg)
Bid Smart: Flag jewelry: Three cheers for the ruby, diamond and sapphire
NEW YORK — Today is Independence Day, a federal holiday commemorating the approval of the Declaration of Independence by the Second Continental Congress on July 4, 1776, marking the United States of America as its own nation. The holiday is celebrated with parades, fireworks, BBQs, picnics and carnivals, and an easy and fun way to […]