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14KY, 14KW, 18KY, 18KW & Platinum Round Cocktail 3 Prong Cast With Screwpost & Nut - Otto Frei
Otto Frei

Gold & Platinum Round Cocktail 3-Prong Cast Earring Mounting with Screwpost & Nut

Part # 240-055 Out of Stock Weight -- lb / -- g
$77.67
Metal Types: 14K Yellow
Stone Size: 5.0mm (.50ct)

These cast round 3-prong cocktail earring mountings — also known as martini earrings — are available in five precious metal types and nine stone sizes, making them a versatile staple for fine jewelry production and custom work. Each mounting features a secure screwpost and nut for a refined, professional finish. Sold individually; order 2 for a pair.

Features

  • Classic 3-prong round mounting in a martini (cocktail) silhouette
  • Cast construction for consistent quality and detail
  • Includes screwpost and nut for secure wear
  • Available in five metal types: Platinum, 18K Yellow, 18K White, 14K Yellow, and 14K White
  • Nine stone sizes from 4.0mm to 8.0mm to accommodate stones from .25ct to 2.0ct
  • Sold by the piece — order 2 for a matched pair

Specifications

Construction Cast
Setting Style 3-Prong Round Cocktail (Martini)
Post Type Screwpost with nut
Available Metals Platinum, 18K Yellow Gold, 18K White Gold, 14K Yellow Gold, 14K White Gold
Stone Size Range 4.0mm–8.0mm
Approximate Stone Weight Range .25ct–2.0ct
Sold As Individual piece (includes 1 screwpost and 1 nut)

Available Options

Part # Metal Type Stone Size
24B-053 Platinum 4.0mm (.25ct)
24B-054 Platinum 4.5mm (.33ct)
24B-055 Platinum 5.0mm (.50ct)
24B-056 Platinum 5.5mm (.65ct)
24B-057 Platinum 6.0mm (.75ct)
24B-058 Platinum 6.5mm (1.0ct)
24B-059 Platinum 7.0mm (1.25ct)
24B-060 Platinum 7.5mm (1.50ct)
24B-061 Platinum 8.0mm (2.0ct)
24C-053 18K Yellow 4.0mm (.25ct)
24C-054 18K Yellow 4.5mm (.33ct)
24C-055 18K Yellow 5.0mm (.50ct)
24C-056 18K Yellow 5.5mm (.65ct)
24C-057 18K Yellow 6.0mm (.75ct)
24C-058 18K Yellow 6.5mm (1.0ct)
24C-059 18K Yellow 7.0mm (1.25ct)
24C-060 18K Yellow 7.5mm (1.50ct)
24C-061 18K Yellow 8.0mm (2.0ct)
24E-053 18K White 4.0mm (.25ct)
24E-054 18K White 4.5mm (.33ct)
24E-055 18K White 5.0mm (.50ct)
24E-056 18K White 5.5mm (.65ct)
24E-057 18K White 6.0mm (.75ct)
24E-058 18K White 6.5mm (1.0ct)
24E-059 18K White 7.0mm (1.25ct)
24E-060 18K White 7.5mm (1.50ct)
24E-061 18K White 8.0mm (2.0ct)
240-053 14K Yellow 4.0mm (.25ct)
240-054 14K Yellow 4.5mm (.33ct)
240-055 14K Yellow 5.0mm (.50ct)
240-056 14K Yellow 5.5mm (.65ct)
240-057 14K Yellow 6.0mm (.75ct)
240-058 14K Yellow 6.5mm (1.0ct)
240-059 14K Yellow 7.0mm (1.25ct)
240-060 14K Yellow 7.5mm (1.50ct)
240-061 14K Yellow 8.0mm (2.0ct)
241-053 14K White 4.0mm (.25ct)
241-054 14K White 4.5mm (.33ct)
241-055 14K White 5.0mm (.50ct)
241-056 14K White 5.5mm (.65ct)
241-057 14K White 6.0mm (.75ct)
241-058 14K White 6.5mm (1.0ct)
241-059 14K White 7.0mm (1.25ct)
241-060 14K White 7.5mm (1.50ct)
241-061 14K White 8.0mm (2.0ct)

What's Included

  • 1 cast 3-prong cocktail earring mounting
  • 1 screwpost
  • 1 nut

Notes

  • Sold by the piece. Order 2 for a matched pair.
  • Stone size approximations (ct weight) are provided as a general guide and may vary by stone type and cut.
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.
Brand
Otto Frei
Part #
240-055
Type
Earrings
Country of Origin
United States
Dimensions
0.15 in x 0.15 in x 0.25 in
Construction
Cast
Setting Style
3-Prong Round Cocktail (Martini)
Post Type
Screwpost with nut
Available Metals
Platinum, 18K Yellow Gold, 18K White Gold, 14K Yellow Gold, 14K White Gold
Stone Size Range
4.0mm–8.0mm
Approximate Stone Weight Range
.25ct–2.0ct
Sold As
Individual piece (includes 1 screwpost and 1 nut)