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Round 4 Prong Die Struck - Otto Frei
Otto Frei

Round 4 Prong Die Struck

Part # 11-150 Only 2 left Weight -- lb / -- g
$33.01
Metal Types: 14K White
Stone Size: .12ct (3.0mm)

Die-struck round 4-prong settings designed for clean, centered stone presentation in classic solitaire-style work. Style 975 is built with a heavier die-struck profile for a crisp silhouette and secure prong structure. Available in 14K white gold and platinum across a wide range of round stone sizes from .12ct (3.0mm) up to 6.0ct (11.5mm), making them a reliable choice for production and custom solitaire builds.

Features

  • Round 4-prong die-struck construction for a crisp, consistent profile
  • Heavier die-struck build compared to typical lightweight patterns
  • Available in 14K white gold and platinum
  • Wide size range — .12ct (3.0mm) through 6.0ct (11.5mm)
  • Select by diamond carat weight or matching millimeter stone size
  • Sold by the piece

Specifications

Setting Style Style 975
Setting Type Round 4-Prong
Construction Die Struck
Stone Shape Round
Prong Count 4
Metal Options 14K White Gold, Platinum
Manufactured In USA
Sold As Per piece

Available Options

Part # Metal Stone Size Height / Top / Bottom
11-150 14K White .12ct (3.0mm) 7.3 mm H; 3.7 / 2.1 mm
11-151 14K White .19ct (3.5mm) 7.2 mm H; 4.2 / 2.0 mm
11-152 14K White .25ct (4.0mm) 7.1 mm H; 4.5 / 2.2 mm
11-153 14K White .38ct (4.5mm) 7.5 mm H; 4.8 / 2.7 mm
11-154 14K White .50ct (5.0mm) 7.4 mm H; 5.5 / 2.7 mm
11-155 14K White .62ct (5.5mm) 7.3 mm H; 5.7 / 2.8 mm
11-156 14K White .75ct (6.0mm) 8.1 mm H; 6.0 / 3.0 mm
11-157 14K White 1.0ct (6.5mm) 8.6 mm H; 6.6 / 2.7 mm
11-158 14K White 1.25ct (7.0mm) 8.7 mm H; 6.9 / 2.7 mm
11-159 14K White 1.50ct (7.5mm) 8.8 mm H; 7.2 / 3.0 mm
11-160 14K White 2.0ct (8.0mm) 9.1 mm H; 7.7 / 3.1 mm
11-161 14K White 2.5ct (8.5mm) 10.1 mm H; 8.3 / 3.0 mm
11-162 14K White 3.0ct (9.5mm) 10.3 mm H; 8.7 / 3.0 mm
11-163 14K White 4.0ct (10.0mm) 11.5 mm H; 10.1 / 3.6 mm
11-164 14K White 5.0ct (11.0mm) 12.0 mm H; 11.3 / 3.7 mm
11-165 14K White 6.0ct (11.5mm) 13.2 mm H; 12.1 / 4.3 mm
1B-150 Platinum .12ct (3.0mm) 7.3 mm H; 3.7 / 2.1 mm
1B-151 Platinum .19ct (3.5mm) 7.2 mm H; 4.2 / 2.0 mm
1B-152 Platinum .25ct (4.0mm) 7.1 mm H; 4.5 / 2.2 mm
1B-153 Platinum .38ct (4.5mm) 7.5 mm H; 4.8 / 2.7 mm
1B-154 Platinum .50ct (5.0mm) 7.4 mm H; 5.5 / 2.7 mm
1B-155 Platinum .62ct (5.5mm) 7.3 mm H; 5.7 / 2.8 mm
1B-156 Platinum .75ct (6.0mm) 8.1 mm H; 6.0 / 3.0 mm
1B-157 Platinum 1.0ct (6.5mm) 8.6 mm H; 6.6 / 2.7 mm
1B-158 Platinum 1.25ct (7.0mm) 8.7 mm H; 6.9 / 2.7 mm
1B-159 Platinum 1.50ct (7.5mm) 8.8 mm H; 7.2 / 3.0 mm
1B-160 Platinum 2.0ct (8.0mm) 9.1 mm H; 7.7 / 3.1 mm
1B-161 Platinum 2.5ct (8.5mm) 10.1 mm H; 8.3 / 3.0 mm
1B-162 Platinum 3.0ct (9.5mm) 10.3 mm H; 8.7 / 3.0 mm
1B-163 Platinum 4.0ct (10.0mm) 11.5 mm H; 10.1 / 3.6 mm
1B-164 Platinum 5.0ct (11.0mm) 12.0 mm H; 11.3 / 3.7 mm

Notes

  • Not all sizes are available in all metal types — confirm availability by part number.
  • Select by carat weight or millimeter size as listed.
  • Sold by the piece unless otherwise noted.
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.
Brand
Otto Frei
Part #
11-150
Type
Settings
Country of Origin
United States
Dimensions
0.15 in x 0.15 in x 0.25 in
Setting Style
Style 975
Setting Type
Round 4-Prong
Construction
Die Struck
Stone Shape
Round
Prong Count
4
Metal Options
14K White Gold, Platinum
Manufactured In
USA
Sold As
Per piece