• A platinum filigree ring mounted with a high-domed Mexican fire opal and baguette cut diamond accents.
  • A platinum filigree ring mounted with a high-domed Mexican fire opal and baguette cut diamond accents.
  • A platinum filigree ring mounted with a high-domed Mexican fire opal and baguette cut diamond accents.
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  • Women's Mexican fire opal and diamond ring with vintage Japanese Mid-Century platinum setting, worn on hand in sunlight; red and green play-of-color is seen in opal from distance
  • Close-up of women's vintage Mexican fire opal and diamond platinum ring on hand; in sunlight, red and green play-of-color is seen over orange crystal body
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  • Green, red, and blue play-of-color rolls through high-domed Mexican fire opal set in baguette diamond-accented platinum ring, shown close-up on finger in sunlight
  • Side gallery view of high-profile Japanese Shōwa era platinum ring set with Mexican fire opal, worn on hand in sunlight; the opal has green play-of-color along its edges
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1 19

OpalPop.com

Dewdrop | Vintage Japanese 1.90ct Mexican Fire Opal & Diamond Ring in Platinum, c.1970s

Dewdrop | Vintage Japanese 1.90ct Mexican Fire Opal & Diamond Ring in Platinum, c.1970s

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$3,280.00 USD
$3,280.00 USD
Sale Sold out

Introducing Dewdrop,

A High-Domed Shōwa-Era Fire Opal Ring Designed for Color from Every Angle

Crafted in Japan during the later mid-century Shōwa era, c.1960s–1970s, Dewdrop is a vintage platinum ring centered by a 1.90-carat natural Mexican fire opal. Mexican fire opal enjoyed particularly strong demand in Japan during this period, and Dewdrop reflects the ornamental jewelry made around these unusually transparent stones: a dramatically high-domed opal elevated above an intricate diamond-set platinum setting so that its color can be seen not only from above, but rolling around the sides of the stone as the hand moves.

That three-dimensional quality is central to Dewdrop. Measuring approximately 8.49mm by 6.67mm and nearly 4.85mm deep, the opal rises like a polished drop of glass above the setting. Its transparent, warm light-orange body carries vivid play-of-color dominated by green and red, with occasional orange and subtle blue appearing as the stone moves through different angles of light. Rather than presenting its strongest display only from directly above, color can travel across and down the curved sides of the high dome.

Lighting changes the ring considerably. In bright studio lighting against a dark background, the opal can reach the intense green and multicolor display seen in our photographs, representing the stone near its brightest. In natural sunlight, its warm transparent body becomes more apparent while concentrated areas of green, red, and orange move through the stone with the direction of the light. It remains attractive in softer indoor conditions, but its finest color is revealed in brighter light and with movement. Our sunlight photographs and video provide the most representative view of its everyday optical character.

Fourteen natural diamonds surround the opal, including two long tapered baguettes and twelve round brilliant cuts totaling approximately 0.13 carat, with an average clarity of VS2. Their restrained arrangement adds crisp white brilliance without overwhelming the center stone. Beneath them, open platinum work supports the unusually elevated setting while allowing light and visual space around the opal.

Sourced from one of OpalPop’s established Tokyo estate-jewelry sources, Dewdrop retains its original Pt900 hallmark together with “190” for the inscribed opal weight and “D013” for the diamond weight. The ring has been professionally cleaned, its platinum polished, and the center stone tightened by our Anaheim, California jewelry partner.

Dewdrop is best understood as an ornamental piece of vintage fine jewelry rather than an everyday ring. Its exceptionally high profile and exposed natural opal reward careful, occasional wear. At approximately size 8.25 US, it is also unusually generous in size for a vintage Japanese ring, making it particularly appealing to collectors who often find smaller estate-jewelry sizes impractical.

Approximate default ring size 8.25 US.

 

More Information

The Center Stone: Natural Crystal Fire Opal, solid

  • carat weight: 1.90cts (inscribed on ring's shank)
  • country of origin: Mexico
  • attributed mining locale: Querétaro
  • brightness of color play: B4 of 5
  • shape: high-domed oval cabochon cut
  • stone measurements (millimeters): 8.49mm x 6.67mm x 4.85mm
  • stone measurements (inches): 0.33" x 0.25" x 0.2"
  • play of color description: predominantly green with red/yellow overtones and blue undertones

The Accent Stones: Diamond, natural

  • stone count: 14
  • total carat weight: 0.13ct (inscribed on ring's shank)
  • cut: 2 tapered baguette cuts and 12 Standard Round Brilliant Cuts
  • average clarity grade: VS2
  • average color grade: G-H-I

The Setting: Prong-Set Ring

  • metal: .900 platinum, solid
  • top of ring width: 10.86mm (0.4")
  • ring height from finger: 11.03mm (0.4")
  • bottom of shank width: 2.20mm
  • ring weight: 5.10 grams
  • approximate default ring size: 8.25 US

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