18k Gold ~ Antique & Vintage

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18K GOLD, OPAL, AND ENAMEL FLORAL BROOCH: Circa 1900, containing an opal carved in the form of a flowerhead, surrounded by scrollwork in white and green enamels, with melee diamonds, refitted as a pin, unmarked but tests as 18k, 22 g total we

2026

18K GOLD, OPAL, AND ENAMEL FLORAL BROOCH

Butterscotch Auction

Must de Cartier 18K EP Wrist Watch: A Must de Cartier 17 jewel 18K gold electroplated wrist watch.

2026

Must de Cartier 18K EP Wrist Watch

Keystone Auction LLC

MEN'S ROLEX DATEJUST TWO-TONE STAINLESS STEEL WATCH: MEN'S ROLEX DATEJUST TWO-TONE STAINLESS STEEL WATCH Men's Rolex DateJust two-tone (18K gold accented) stainless steel Oyster Perpetual wristwatch: Baton markers Sapphire crystal

2026

MEN'S ROLEX DATEJUST TWO-TONE STAINLESS STEEL WATCH

AN ANTIQUE IWC PROBUS SCAFUSIA 18K HUNTING CASE WATCH: The late 19th century hunting case watch with porcelain enamel dial on brass 3/4 plate lever set movement is housed in a solid 18 karat gold case stamped 18k and with maker's marks. Movement measures

2026

AN ANTIQUE IWC PROBUS SCAFUSIA 18K HUNTING CASE WATCH

Soulis Auctions

Cartier "Diabolo" 18K Gold Wristwatch, Reference 1460: Cartier "Diabolo" 18K Gold Wristwatch, Reference 1460 Case: 18K Gold Crown: Blue Sapphire Cabochon Stone Case Diameter: 32mm Dial: Silver, Engine Turned Movement: Mechanical Bracelet Marked: "Cartier"

2026

Cartier "Diabolo" 18K Gold Wristwatch, Reference 1460

Fontaine's Auction Gallery

Patek Philippe 18K Gold Les Grecques Wristwatch, Reference 4632/1, Circa 1984: Patek Philippe 18K Gold Les Grecques Wristwatch, Reference 4632/1, Circa 1984 Case: 18K Gold, diamond-set Case Width: 25mm Dial: White with gold Greek design on border, diamond-set numerals Buckle/Cla

2026

Patek Philippe 18K Gold Les Grecques Wristwatch, Reference 4632/1, Circa 1984

Fontaine's Auction Gallery

Patek Philippe 18K Gold Calatrava Ladies Wristwatch, Reference 4819, Circa 1996: Patek Philippe 18K Gold Calatrava Ladies Wristwatch, Reference 4819, Circa 1996 Case: 18K Gold Case Diameter: 25mm Dial: White, black Roman numeral hour markers, black leaf hands Case: Brushed and pol

2026

Patek Philippe 18K Gold Calatrava Ladies Wristwatch, Reference 4819, Circa 1996

Fontaine's Auction Gallery

Vintage H Stern 18K Gold Multi Color Gemstone Tennis Bracelet 7 Inch - 2: A refined vintage 18 karat gold multi-gemstone tennis bracelet by H. Stern, composed of a continuous line of square-cut faceted gemstones in a vibrant polychrome arrangement. The bracelet is set with

2026

Vintage H Stern 18K Gold Multi Color Gemstone Tennis Bracelet 7 Inch - 2

Kavanagh Auctions

18k Gold Bow Brooch, Stamped Italy 18k: 18k Gold Bow Brooch, Stamped Italy 18k. 10.5g Width 1.75 Provenance: The Estate of Marguerite G. Dinan, Falmouth, Maine

2026

18k Gold Bow Brooch, Stamped Italy 18k

Rafael Osona Auctions

18k Gold Wire Cuff Bracelet: 18k Gold Wire Cuff Bracelet, smooth on one side, wire design on front, 27.81g 2.5 in. x 2 in. Provenance: The Estate of Marguerite G. Dinan, Falmouth, Maine

2026

18k Gold Wire Cuff Bracelet

Rafael Osona Auctions

Pair of 18K Gold Rope Earrings: Pair of 18K Gold Rope Earrings, Stamped 750 Length 7/8" Weight 13.13g Provenance: The Estate of Marguerite G. Dinan, Falmouth, Maine

2026

Pair of 18K Gold Rope Earrings

Rafael Osona Auctions

Lot of Assorted Gold and Silver Pins and Two Rings: Assorted 14k and 18k Gold and Silver Pins and Two Rings Comprising: smokey topaz heart shaped crown pin set in 14k gold with five seed pearls on crown 14k yellow gold eggplant pin 18k yellow gold emer

2026

Lot of Assorted Gold and Silver Pins and Two Rings

Rafael Osona Auctions

Rolex Lady's Oyster Perpetual Date Full Set, Ref: Rolex Lady's Oyster Perpetual Date Full Set, Ref. 6917 Case: 26 mm, 18k gold and stainless steel, three body, screw-down case back and crown, with fixed flut

2026

Rolex Lady's Oyster Perpetual Date Full Set, Ref

Heritage Auctions

SOLD

18k Gold Antique Filigree Ring with Imperial Topaz: Weighs 2.5 grams, Size 5 3/4, A scarce fancy oval cushion cut gem well over 1 carat in white gold openwork setting, A stunning ring

2026

18k Gold Antique Filigree Ring with Imperial Topaz

Poinsett Auction & Realty, Inc.

18K GOLD FEATHER-FORM PEARL BROOCH: 18K GOLD FEATHER-FORM PEARL BROOCH An 18K yellow gold brooch designed in the form of a stylized feather, finely engraved with textured detailing and serrated edges. With a 5.16mm pearl accent. Reverse

2026

18K GOLD FEATHER-FORM PEARL BROOCH

Thomaston Place Auction Galleries

ART DECO 18K GOLD DIAMOND AND SAPPHIRE FILIGREE RING: ART DECO 18K GOLD DIAMOND AND SAPPHIRE FILIGREE RING An Art Deco ring in 18K white gold set with a central round diamond flanked by two round blue sapphires in an elongated geometric mount, each stone

2026

ART DECO 18K GOLD DIAMOND AND SAPPHIRE FILIGREE RING

Thomaston Place Auction Galleries

Visconti 18K Blue Celluloid Fountain Pen: Visconti fountain pen featuring a striking translucent blue marbled resin body with ornate gold-tone skeleton overlay and decorative banding. The pen is fitted with a two-tone 18k gold nib marked "VIS

2026

Visconti 18K Blue Celluloid Fountain Pen

MOONSTONE AND DIAMOND 18K GOLD RING: Moonstone and diamond gold ring featuring a center round cabochon moonstone measuring approximately 11.1 x 11.1 x 5.6mm, surrounded by (10) round cut diamonds weighing approximately 0.30 total carats,

2026

MOONSTONE AND DIAMOND 18K GOLD RING

Ahlers & Ogletree Auction Gallery

ANTIQUE / VINTAGE GOLD NUGGET JEWELRY, LOT OF THREE: ANTIQUE / VINTAGE GOLD NUGGET JEWELRY, LOT OF THREE, each nugget tested as more than 18K gold fineness; comprising a pair of drop earrings with each having a small nugget attached to a hook

2026

ANTIQUE / VINTAGE GOLD NUGGET JEWELRY, LOT OF THREE

Jeffrey S. Evans & Associates

2.06 Cts Natural Citrine Diamonds 18K Gold Plated Designer Earrings $1,260!: Gemstone DescriptionGemstone: CitrineColor: OrangeShape: OvalSize: 8x6Quantity: 2CTW: 2.04 Diamond DescriptionShape: RoundsSize: 1.2mm Quantity: 2CTW: 0.02Grade: I3Color: H-I Material Information:Plat

2026

2.06 Cts Natural Citrine Diamonds 18K Gold Plated Designer Earrings $1,260!

U.S. Auction Gallery

1.21 Cts Natural Amethyst Diamonds 18K Gold Plated Designer Earrings $1,175!: Gemstone DescriptionGemstone: AmethystColor: VioletShape: RoundSize: 3mmQuantity: 14CTW: 1.21 Material Information:Plating Material: Yellow GoldPlating Material Karat: 18kPrimary Material: Base Metal

2026

1.21 Cts Natural Amethyst Diamonds 18K Gold Plated Designer Earrings $1,175!

U.S. Auction Gallery

1.63 Cts Natural Sapphire Diamonds 18K Gold Plated Designer Earrings $1,285!: Gemstone DescriptionGemstone: Black SapphireColor: BlackShape: MarquiseSize: 4x2Quantity: 16CTW: 1.61 Diamond DescriptionShape: RoundsSize: 1.2mm Quantity: 2CTW: 0.02Grade: I3Color: H-I Material Infor

2026

1.63 Cts Natural Sapphire Diamonds 18K Gold Plated Designer Earrings $1,285!

U.S. Auction Gallery

1.30 Cts Natural Blue Topaz Diamonds 18K Gold Plated Designer Earrings $1,275!: Gemstone DescriptionGemstone: Blue TopazColor: Sky BlueShape: OvalSize: 6x4Quantity: 2CTW: 1.12 Diamond DescriptionShape: RoundsSize: 1.1mm Quantity: 20CTW: 0.18Grade: I3Color: H-I Material Informatio

2026

1.30 Cts Natural Blue Topaz Diamonds 18K Gold Plated Designer Earrings $1,275!

U.S. Auction Gallery

2.04 Cts Natural Amethyst Diamonds 18K Gold Plated Designer Earrings Value $1,275!: Gemstone DescriptionGemstone: AmethystColor: VioletShape: PearsSize: 8x6Quantity: 2CTW: 2.02 Diamond DescriptionShape: RoundsSize: 1.2mm Quantity: 2CTW: 0.02Grade: I3Color: H-I Material Information:Pl

2026

2.04 Cts Natural Amethyst Diamonds 18K Gold Plated Designer Earrings Value $1,275!

U.S. Auction Gallery

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