Gold & Platinum Half Round Ring Shanks – Notched for 4-Prong Settings
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These precision die-struck half round ring shanks are pre-notched for classic 4-prong settings, streamlining solitaire builds and shank replacement work at the bench. Available in 14K Yellow Gold, 14K White Gold, 18K Yellow Gold, and Platinum in Medium and Heavy weights, these shanks are designed for clean soldering, consistent fit, and a high-polish finish. Made in the USA.
| Profile | Half Round |
|---|---|
| Notch Type | Pre-cut for 4-prong settings |
| Finger Size | 6 |
| Origin | Made in the USA |
| Medium Shank — Top | 2.8 mm × 2.2 mm (approx. 0.11" × 0.08") |
| Medium Shank — Bottom | 1.9 mm × 1.2 mm (approx. 0.07" × 0.06") |
| Heavy Shank — Top | 3.6 mm × 2.4 mm (approx. 0.14" × 0.09") |
| Heavy Shank — Bottom | 2.4 mm × 1.3 mm (approx. 0.09" × 0.05") |
Dimensions may vary slightly due to manufacturing tolerances. Always verify fit before final soldering. Inch values are approximate.
| Part # | Metal | Size |
|---|---|---|
| 70-09 | 14K Yellow Gold | Medium |
| 70-83 | 14K Yellow Gold | Heavy |
| 71-09 | 14K White Gold | Medium |
| 71-83 | 14K White Gold | Heavy |
| 7B-09 | Platinum | Medium |
| 7B-83 | Platinum | Heavy |
| 7C-09 | 18K Yellow Gold | Medium |
| 7C-83 | 18K Yellow Gold | Heavy |
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