This 4-prong cast earring setting is designed for princess-cut (square) diamonds or gemstones. It features a classic cocktail-style mounting on a friction post, ideal for securely displaying square faceted stones. Each setting is sold individually; order two pieces for a pair. Ear nuts sold separately.
Key Features
4-prong cast setting for square or princess-cut stones.
Mounted on a friction post for standard earring fit.
Available in multiple precious metals and stone sizes.
Carat sizes listed indicate approximate diamond weight for each mounting.
Sold by the piece—order two for a pair.
Available Metal Types
Platinum
18K Yellow Gold
18K White Gold
14K Yellow Gold
14K White Gold
Available Stone Sizes
Approx. Carat
Stone Size (mm)
0.10 ct
2.5 × 2.5 mm
0.15 ct
2.75 × 2.75 mm
0.20 ct
3.0 × 3.0 mm
0.25 ct
3.25 × 3.25 mm
0.33 ct
3.4 × 3.4 mm
0.40 ct
3.5 × 3.5 mm
0.45 ct
3.75 × 3.75 mm
0.50 ct
4.0 × 4.0 mm
0.65 ct
4.5 × 4.5 mm
0.75 ct
5.0 × 5.0 mm
1.00 ct
5.5 × 5.5 mm
Recommended Ear Nuts
Standard ear nut – 21B-400MAIN
Heavy “Flower” ear nut – 21B-14MAIN
Monster “Starburst” ear nut – 21B-520MAIN
Notes
Not all sizes are available in every metal type.
Ear nuts sold separately.
Choose from Otto Frei’s full line of friction ear nuts for your preferred fit.