Platinum Black Onyx & Diamond Locket Necklace

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This was another fun and creative conversion project. We took an old platinum and diamond Art Deco watch, removed the movement and crystal and replaced it with a custom cut piece of black onyx to create a one of a kind locket. The chain is a new platinum "paper clip" link that is 18 inches long and 1.8 millimeter wide.  The chain can be exchanged for other options.

Item Details

  • Materials: Platinum, Diamond, Onyx
  • Length: 3/4 Inches
  • Width: 5/8 Inch
  • Number of Stones: 28
  • Circa: Art Deco

Primary Stone

  • Type: Onyx
  • Measurement: 7/16 square
  • Cut/Shape: Square, Custom
  • Color: Black

Accent Stones

  • Type: Diamond
  • Total Carat Weight: 0.25
  • Number of Stones: 29
  • Cut/Shape: Single Cut
  • Color: HI
  • Clarity: VS

Additional Details


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