Skip to product information
1 of 19

OpalPop.com

Hikari | Art Deco-Inspired 7.00ct Coober Pedy Crystal Opal & Diamond Pendant in Platinum, c.1980’s

Hikari | Art Deco-Inspired 7.00ct Coober Pedy Crystal Opal & Diamond Pendant in Platinum, c.1980’s

Regular price $8,800.00 USD
Regular price Sale price $8,800.00 USD
Sale Sold out

Meet Hikari,

An Australian Crystal Opal and Diamond Necklace That Radiates Light From Within

From a distance, Hikari—Japanese for “light”—gleams with sculptural simplicity. Its bold silhouette and mirrored platinum frame catch the light with quiet precision. But step closer, and the craftsmanship reveals itself. At the center, a 7.00 carat crystal opal from Coober Pedy glows in layered hues of green and soft orange—its surface alive with movement, like fire seen through glass.

This is a necklace that honors tradition. The design carries forward the geometric legacy of 1930s Art Deco, reinterpreted through the lens of 1980s Japanese jewelry design. Known for their mastery of platinum, Japanese jewelers developed specialized techniques for casting and finishing the metal at a time when few others dared—and still dare—to work with it. The result is a setting that feels precise yet expressive: weighty in hand, luminous on the body.

The halo of 0.54 carats of VS1 diamonds is deliberately architectural, echoing the pattern of light bouncing across the opal’s surface. At 1.33 inches long and weighing 10 grams, the piece has a presence that speaks for itself.

A final detail waits quietly in reserve. When light is directed through the back of the stone, flower-like inclusions shimmer faintly within—visible only under strong illumination. A whisper from the Earth itself—never obvious, but always there.

Stamped “7.00,” “Pt900,” and “D054” on the reverse, confirming its platinum purity and gemstone weights. An 18” sterling silver box chain is included.

 

More Information...

The Center Stone: Natural Crystal Opal, solid

  • carat weight: 7.00cts (inscribed on back of pendant)
  • origin: Coober Pedy, Australia
  • shape: oval cabochon
  • stone measurements (millimeters): 18.90mm x 14.55mm
  • stone measurements (inches): 0.75" x 0.6"
  • body tone: N8
  • brightness of color play: 3.5 of 5
  • color play description: predominantly green with yellow/orange overtones and blue undertones

The Accent Stones: Diamond, natural

  • stone count: 25
  • total carat weight: 0.54ct (inscribed on back of pendant)
  • cut: Standard Round Brilliant Cuts
  • average clarity grade: VS1
  • average color grade: H-I-J

The Setting: Art Deco-Inspired Prong-Set Basket Pendant, chain included

  • pendant metal: .900 platinum, solid
  • chain metal: .925 sterling silver, solid
  • stone orientation: North-South
  • pendant length (including bail): 33.90mm (1.33")
  • pendant width: 20.84mm (0.8")
  • bail opening width: 3.56mm
  • pendant weight: 10.10 grams (not including chain)
View full details