Sizing Down Platinum Rings
Sizing Up Platinum Rings
Additional Topics
Ring is round
No excess solder at the joints
Finger size is accurate
Sizing joint is not visible
No pits in the solder joint
Oxidation removed from all portions of the ring
Sizing joint is not visible
No pits in the solder joint
Quality and hallmark stamps are visible
Shank’s shape and original dimensions maintained
There are no tool marks and the piece is brightly polished and finished
A piece of sizing stock is used to size a ring up. The alloy of the sizing wire must match the alloy of the ring. The size of the sizing stock depends upon how much larger the ring needs to be.
Too often, jewelers try to repurpose a section from a scrap platinum ring to size up another ring. Making a sizing piece from a scrap ring is not just time consuming; there’s also no guarantee that it’s the same alloy.
Using a matching alloy guarantees an exact color match. It’s also important because platinum cobalt and platinum ruthenium have different soldering and melting temperatures.
Sizing Up a Platinum Ruthenium Ring Using Sizing Stock and a Torch
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This technician is using appropriate eye protection and magnification optics for safe close-up viewing.
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