![Antique Art Deco Platinum Old Euro & Mine Cut Diamond Open Geometric Brooch Pin: An antique art deco solid platinum open pin brooch, with 38 old european and old mine cut natural diamonds (G/I - VS1/VS2 w/ a few SI1; 3.10ctw). Measures 21.20x41.80mm and weighs a total of 6.86 gram](https://p1.liveauctioneers.com/6100/332760/179536430_1_x.jpg?height=310&quality=70&version=1717793286)
Diamond Brooches & Pins
![Antique Art Deco Platinum Old Euro & Mine Cut Diamond Open Geometric Brooch Pin: An antique art deco solid platinum open pin brooch, with 38 old european and old mine cut natural diamonds (G/I - VS1/VS2 w/ a few SI1; 3.10ctw). Measures 21.20x41.80mm and weighs a total of 6.86 gram](https://p1.liveauctioneers.com/6100/332760/179536430_1_x.jpg?height=310&quality=70&version=1717793286)
![TASAKI BROOCH AND PENDANT TANZANITE 3.67CT DIAMOND 0.72CT 18K: TASAKI Brooch and Pendant Tanzanite 3.67ct Diamond 0.72ct 18K Brand: TASAKI Type: Pendant Material: 18K/750/White Gold Color: None Size: 68.0 x 28.5mm Accessories: None Accessories Notice](https://p1.liveauctioneers.com/6177/332290/179214884_1_x.jpg?height=310&quality=70&version=1717432081)
![Danfrere 14k diamond and sapphire brooch: Danfrere 14k diamond and sapphire brooch, pierced abstract floral form brooch with (5) 2.4-1.6 mm diamonds and (5) 2.5-1.7 mm sapphires, set at white gold as center, signed Danfrere 14K at back, 1 3/4](https://p1.liveauctioneers.com/385/332379/179257544_1_x.jpg?height=310&quality=70&version=1717521954)
![ANTIQUE AQUAMARINE DIAMOND PEARL BROOCH K18 K14: Antique Aquamarine Diamond Pearl Brooch K18 K14 Brand: Unbranded Type: Brooch Material: Yellow Gold Color: None Size: 23.7 x 36.5mm Accessories: None Accessories Notice: When purchasing p](https://p1.liveauctioneers.com/6177/332290/179215142_1_x.jpg?height=310&quality=70&version=1717432081)
![TIFFANY&CO. BROOCH DIAMOND DRAGONFLY 950 PLATINUM: Tiffany&Co. Brooch Diamond Dragonfly 950 Platinum Brand: Tiffany & Co. Type: Brooch Material: Platinum Color: None Size: 21.0 x 20.0mm Accessories: None Accessories Notice: When purchasin](https://p1.liveauctioneers.com/6177/332290/179215118_1_x.jpg?height=310&quality=70&version=1717432081)
![BLACK DIAMOND 0.39CT CHALCEDONY LIZARD BROOCH 18K 750 WHITE GOLD: Black Diamond 0.39ct Chalcedony Lizard Brooch 18K 750 White Gold Brand: Unbranded Type: Brooch Material: 18K/750/White Gold Color: None Size: 36.0 x 12.0mm Accessories: None Accessories N](https://p1.liveauctioneers.com/6177/332293/179216468_1_x.jpg?height=310&quality=70&version=1717432645)
![MIZUNO KAOLUCO BROOCH AGATE DIAMOND FAIRY 18K: Mizuno Kaoluco Brooch Agate Diamond Fairy 18K Brand: Mizuno Kaoluco Type: Brooch Material: Yellow Gold Color: None Size: 20.5 x 26.7mm Accessories: None Accessories Notice: When purchasin](https://p1.liveauctioneers.com/6177/332293/179216392_1_x.jpg?height=310&quality=70&version=1717432645)
![AS TIME BROOCH FRESHWATER PEARL DIAMOND LEAF 18K: As Time Brooch Freshwater Pearl Diamond Leaf 18K Brand: As Time by ISHIKAWA NOBUKO Type: Brooch Material: Yellow Gold Color: None Size: 21.0 x 17.5mm Accessories: None Accessories Notice:](https://p1.liveauctioneers.com/6177/332293/179216262_1_x.jpg?height=310&quality=70&version=1717432645)
![AMETHYST DIAMOND HEART LEAF BROOCH AND PENDANT 18K 750 WHITE GOLD: Amethyst Diamond Heart Leaf Brooch and Pendant 18K 750 White Gold Brand: Unbranded Type: Pendant Material: White Gold Color: None Size: 25.0 x 17.0mm Accessories: None Accessories Notice:](https://p1.liveauctioneers.com/6177/332293/179216072_1_x.jpg?height=310&quality=70&version=1717432645)
![10K Flower Brooch & Filigree Brooch W/ Diamond: Total Weight: 4.4g Flower brooch not marked but tested 10K-12K Condition: Very Good.](https://p1.liveauctioneers.com/7998/331558/178901103_1_x.jpg?height=310&quality=70&version=1717017003)
![14K White Gold Diamond Masonic Lapel Pin: 14K White Gold Diamond Masonic Lapel Pin, featuring one bezel set diamond approx. 0.03 carat, worn through the lapel button hole with threaded post and screw back clasp, marked: "(H) 14KT". Measuring](https://p1.liveauctioneers.com/5649/333144/179840083_1_x.jpg?height=310&quality=70&version=1718227312)
![BROOCH WHITE GOLD BLACK DIAMOND SHELL: Brooch White gold Black diamond shell Brand: Unsigned Jewelry Type: Brooch Material: K18WG Color: Black Size: 42.5mm×21.0mm Accessories: None Accessories Notice: When purchasing pre-owned](https://p1.liveauctioneers.com/6177/332981/179746783_1_x.jpg?height=310&quality=70&version=1718047218)
![Womens Vintage Estate 14k Gold Diamond Heart Brooch Pin: A WOMENS VINTAGE ESTATE 14K WHITE AND YELLOW GOLD HEART SHAPED BROOCH WITH DIAMONDS. THE BROOCH WEIGHS 2.7g AND MEASURES 1 1/2" WIDE BY 3/4". BROOCH IS STAMPED "14K", AND HAS ABOUT .09cts. MAKES A GRE](https://p1.liveauctioneers.com/1846/331594/178871545_1_x.jpg?height=310&quality=70&version=1717068070)
![Antique 14kt Filigree Bird Diamond Sapphire Brooch, 19120's-1930's: Antique 14kt Filigree Bird Diamond Sapphire Brooch, 1920's-1930's. C-clasp with lock where it is marked 14kt and signed with an infinity or no. 8 mark on the front of the c-clasp. Weight of the brooch](https://p1.liveauctioneers.com/5584/332554/179382089_1_x.jpg?height=310&quality=70&version=1718142737)
![18K Yellow Gold Carved Jade, Diamond and Ruby Brooch: 18K Yellow Gold Carved Jade, Diamond and Ruby BroochWeighing 58.8 gramsSet with 18 Diamonds weighing app. 0.35 Ct.G-H Color, VS1-SI1 ClarityAlong with 2 Rubies weighing app. 1.00 Ct.App. 3 inches in l](https://p1.liveauctioneers.com/1692/330287/178727018_1_x.jpg?height=310&quality=70&version=1716827109)
![Antique 0.55ctw Mine and European Cut Diamond Flower Brooch in 18K: Antique 0.55ctw Mine and European Cut Diamond Flower Brooch in 18K white gold. Brooch Dimensions: Approx. 17.0 X 45.0 MM. Weight: Approx. 5.93 Grams. Stamped: 18K.](https://p1.liveauctioneers.com/6266/330329/178073577_1_x.jpg?height=310&quality=70&version=1716251320)
![Estate .80 Cttw Diamond F-G VS Large Leaf Brooch: Estate .80 Cttw Diamond F-G VS Large Leaf Brooch. Estate Brooch, 7 Round Diamond 0.80ct F-G VS1-VS2, 14K White/Yellow Gold 16.90g Measurement : 63 mm x 31 mm](https://p1.liveauctioneers.com/6970/332422/179277353_1_x.jpg?height=310&quality=70&version=1717584831)
![14Kt DIAMOND RECTANGULAR FEMALE CAMEO BROOCH BAT WING An outstanding vintage 14kt White Gold Hand: 14Kt DIAMOND RECTANGULAR FEMALE CAMEO BROOCH BAT WING An outstanding vintage 14kt White Gold Hand Carved Rectangular Female Cameo Diamond Solitaire Brooch Pendant, centered with beautiful high relief](https://p1.liveauctioneers.com/672/332796/179549383_1_x.jpg?height=310&quality=70&version=1717796272)
![Victorian Diamond and Emerald Cluster Brooch: Victorian Diamond and Emerald Cluster Brooch. Weight: 9.0 grams Dimensions: 30mm x 30mm x 9mm Total Diamond Carat Weight](https://p1.liveauctioneers.com/6970/332422/179277104_1_x.jpg?height=310&quality=70&version=1717584831)
![Estate Designer Mauri Diamond Yellow Gold Alligator Brooch/Pendant: Estate Designer Mauri Diamond Yellow Gold Alligator Brooch/Pendant. Estate Mauri Brooch/Pendant, 13 Mixed Cut Diamond 0.22ct J-K SI2-I1, 14K Yellow Gold 60.59g Measurement : 2.5 i](https://p1.liveauctioneers.com/6970/332422/179277300_1_x.jpg?height=310&quality=70&version=1717584831)
![Estate Designer Hammerman Brothers Famous "Le Froggie" Green Enamel .84 Cttw Diamond Pendant/Brooch: Estate Designer Hammerman Brothers Famous "Le Froggie" Green Enamel .84 Cttw Diamond Pendant/Brooch Estate - Hammerman Brooch/Penda](https://p1.liveauctioneers.com/6970/332422/179277277_1_x.jpg?height=310&quality=70&version=1717584831)
![14K GOLD 2.02 CTW VIVID GREEN NATURAL EMERALD & DIAMOND BROOCH: Ref:630706 Gold Content:14K Gold Main Gemstone:Emerald Number of stones:1 Shape:Heart Carat Weight:0.92ct Color:Vivid Green Treatment:Natural Cut Grade:G Adjacent Gemstone 2 : Diamond Shape:Ro](https://p1.liveauctioneers.com/8716/332237/179188633_1_x.jpg?height=310&quality=70&version=1717400276)
![Estate Italian Designer Roberto Legnazzi Intaglio Tourmaline Diamond 18K Yellow Gold Brooch/Pendant: Estate Italian Designer Roberto Legnazzi Intaglio Tourmaline Diamond 18K Yellow Gold Brooch/Pendant Estate Robert Legnazzi Brooch/Pendant, 17 Round Diamond 0.15ct H-I VS1-S](https://p1.liveauctioneers.com/6970/332422/179277294_1_x.jpg?height=310&quality=70&version=1717584831)
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
[av_heading heading=’Kashmir unheated sapphire and diamond ring leads our 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’ […]
![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 […]