Ruthenium Ruby Serpentine Cuff bone Ruthenium is the hardest of

Ruthenium is the hardest of the platinum group metals and can prevent scratches and abrasions on jewelry surfaces

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Ruthenium over silver

18k gold over silver

To select the correct cuff

Ruthenium Ruby Serpentine Cuff bone Ruthenium is the hardest ofRuthenium over silver, rubies. Other finishes are available. Ruthenium is the hardest of the platinum group metals and can prevent scratches and abrasions on jewelry surfaces. To select the correct cuff, measure the circumference of your wrist and choose from the corresponding size options. Note, they are adjustable so these can be a rough estimate and can be shaped to your preference! XS Approximate wrist circumference 5" 6" S Approximate wrist