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Description
Made with certified recycled precious metal. Our silver, gold and platinum is refined from certified recycled content rather than newly mined ore, through refiners audited by outside parties.
How we source our metal
Platinum round double gallery 4-prong cast settings sized for round stones from small accent sizes up to substantial center stones. Available in 22 stone sizes spanning approximately 0.03 ct to 5.0 ct (2.0–12.0 mm), these settings are made from 100% recycled platinum by Victor-Joseph, a long-established U.S. manufacturer of precious metal findings. The open double gallery construction allows light to enter the stone from multiple angles, while the four-prong configuration holds each stone securely with a clean, classic profile suited to solitaire rings, pendants, and earrings.
Features
- Classic 4-prong round double gallery design for versatile use in rings, pendants, and earrings
- 22 stone size options covering approximately 0.03 ct to 5.0 ct round stones (2.0–12.0 mm)
- Cast construction with defined prong structure for reliable stone seating and bench finishing
- Open double gallery admits light from multiple angles for enhanced stone brilliance
- Proportioned heights and shoulder widths support the stone while maintaining a refined profile
- Cast in 100% recycled platinum by Victor-Joseph (Joseph Castings 4RH series)
- Made in the USA
- Sold individually — order exactly the quantity your job requires
Specifications
| Specification | Value |
|---|---|
| Setting Style | Round double gallery 4-prong cast setting |
| Stone Shape | Round |
| Stone Size Range | 2.0–12.0 mm; approx. 0.03–5.0 ct (round diamond equivalent) |
| Number of Sizes | 22 |
| Metal Type | Platinum |
| Material Source | 100% recycled platinum |
| Series | Joseph Castings 4RH |
| Manufacturer | Victor-Joseph |
| Manufactured In | USA |
| Sold By | Piece |
Available Options
| Part # | Stone Size (ct) | Stone Size (mm) |
|---|---|---|
| 1B-419 | 0.03 ct | 2.0 mm |
| 1B-420 | 0.05 ct | 2.5 mm |
| 1B-421 | 0.07 ct | 2.75 mm |
| 1B-422 | 0.10 ct | 3.0 mm |
| 1B-422.5 | 0.12 ct | 3.25 mm |
| 1B-423 | 0.15 ct | 3.5 mm |
| 1B-424 | 0.25 ct | 4.0 mm |
| 1B-425 | 0.33 ct | 4.5 mm |
| 1B-425.5 | 0.45 ct | 4.75 mm |
| 1B-426 | 0.50 ct | 5.0 mm |
| 1B-427 | 0.65 ct | 5.5 mm |
| 1B-428 | 0.75 ct | 6.0 mm |
| 1B-429 | 1.0 ct | 6.5 mm |
| 1B-430 | 1.25 ct | 7.0 mm |
| 1B-431 | 1.5 ct | 7.5 mm |
| 1B-432 | 2.0 ct | 8.0 mm |
| 1B-433 | 2.5 ct | 8.25 mm |
| 1B-435 | 3.0 ct | 9.5 mm |
| 1B-436 | 4.0 ct | 10.0 mm |
| 1B-437 | 4.25 ct | 11.0 mm |
| 1B-437.5 | 4.5 ct | 11.5 mm |
| 1B-438 | 5.0 ct | 12.0 mm |
Notes
Stone size designations are based on round diamond equivalents; actual fit may vary slightly depending on stone material and cutting style.
Matching settings in 14K yellow, 14K white, 18K yellow, and 18K white gold are available under separate part numbers.
All settings are sold by the piece.
Specifications
- Brand
- Otto Frei
- Part #
- Varies by option
- Type
- Settings
- Country of Origin
- United States
- Dimensions
- 0.15 in x 0.15 in x 0.25 in
- Specification Value Setting Style
- Round double gallery 4-prong cast setting
- Stone Shape
- Round
- Stone Size Range
- 2.0–12.0 mm; approx. 0.03–5.0 ct (round diamond equivalent)
- Number of Sizes
- 22
- Metal Type
- Platinum
- Material Source
- 100% recycled platinum
- Series
- Joseph Castings 4RH
- Manufactured In
- USA
- Sold By
- Piece
California Prop 65 Warning:Cancer and Reproductive Harm. www.P65warnings.ca.gov.
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