• A macro view of the Kasumi dark opal and diamond pendant against a black background, showcasing its soft green color play.
  • Macro diagonal view of the Kasumi Lightning Ridge opal and diamond pendant against a black background, showcasing soft green fire throughout the stone.
  • Back view of the Kasumi dark opal pendant showing the hallmarks “K18WG,” “D0.81,” and “4.94” engraved on the platinum setting.
  • Kasumi dark opal necklace being dangled by its chain against a black background, revealing the opal’s subtle color play.
  • An angled shot of the Kasumi dark opal and diamond necklace lying against a black background, with soft green hues glowing across the opal.
  • Kasumi dark opal necklace displayed next to a dime and ruler for scale, measuring just under an inch in length.
  • Kasumi dark opal and diamond pendant nestled inside a blue jewelry box against a black background.
  • Kasumi dark opal pendant resting on fingers against a black background, with subtle green color visible in the opal.
  • A macro close-up of the Kasumi opal necklace resting on fingers, highlighting the opal’s defined green hues.
  • An angled macro view of the Kasumi dark opal pendant, revealing a soft teal fire spreading across the stone.
  • Side view of the Kasumi dark opal and diamond necklace, showing the pendant’s platinum setting and subtle color play.
  • Kasumi dark opal necklace worn against a black t-shirt with a partially zipped sweatshirt, with green fire visible in the opal.
  • Kasumi dark opal necklace held outside in natural sunlight, showing soft green and orange flashes across the opal.
  • A macro close-up of the Kasumi opal pendant outside in sunlight, where green hues dominate with blue and orange as secondary colors.
  • Macro view of the Kasumi dark opal pendant in sunlight, highlighting concentrated green flashes along the edges of the stone.
  • Angled macro view of the Kasumi dark opal necklace, showing soft green color play throughout the opal.
  • Straight-on macro shot of the Kasumi dark opal pendant in sunlight, with well-defined green and teal color play across the whole stone.
  • Diagonal angled macro close-up of the Kasumi dark opal necklace, with soft green fire and subtle blue accents.
  • Side macro shot of the Kasumi dark opal necklace, showing teal and blue color play with a touch of green.
  • Front cover of the GAAJ certificate with gold embossed lettering, issued by the Gemmological Association of All Japan.
  • Open GAAJ gem identification report displaying the Kasumi opal pendant with certification details.
  • Close-up of the GAAJ certificate showing the opal classified as “ブラックオパール” (black opal) with expert evaluation notes.
  • Detailed view of the GAAJ opal certificate, listing gemstone properties, refractive index, fluorescence, and diamond weight.
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Kasumi | 4.94ct Lightning Ridge Semi-Black Opal & Diamond Pendant in 18k White Gold

Kasumi | 4.94ct Lightning Ridge Semi-Black Opal & Diamond Pendant in 18k White Gold

Free USPS Priority shipping for all U.S. orders. California orders subject to sales tax at checkout.

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

Meet Kasumi,

An 18k White Gold Semi-Black Opal Pendant with Diamond Accents

Soft yet mesmerizing, this 4.94-carat Lightning Ridge semi-black opal pendant embodies refined luxury. Housed in a handcrafted 18k white gold setting and adorned with 0.31 carats of mixed-cut diamonds, its design blends sophistication with the organic beauty of Australian opal. The opal’s ethereal play-of-color reveals gentle blue and green hues, glowing brightest in natural light.

This pendant was imported from Japan and comes with a Gemmological Association of All Japan (GAAJ) certificate, which classifies the opal as “black opal” (ブラックオパール). However, based on expert evaluation, OpalPop identifies this as a semi-black opal (N6 body tone)—a rare category between black opals and light opals. This distinction reflects OpalPop’s deep expertise in opal grading, ensuring buyers receive a precise, transparent assessment.

Designed for timeless elegance, this piece is an ideal gift for a wife or loved one, balancing size and brilliance in a graceful silhouette. The combination of platinum, diamonds, and Australian opal makes it a meaningful, heirloom-worthy treasure.

18” sterling silver box chain included.

 

More Information...

The Center Stone: Natural Semi-Black Opal, solid

  • carat weight: 4.94cts (inscribed on back of pendant)
  • origin: Lightning Ridge, NSW, Australia
  • shape: oval cabochon
  • stone measurements (millimeters): 14.68mm x 10.98mm
  • stone measurements (inches): 0.6" x 0.4"
  • body tone: N6
  • brightness of color play: 3 of 5
  • color play description: predominantly green with orange/blue undertones

The Accent Stones: Diamond, natural

  • stone count: 9
  • total carat weight: 0.31ct (inscribed on back of pendant)
  • cut: Standard Round Brilliant Cuts, faceted marquise cuts, faceted emerald cuts
  • average clarity grade: SI1
  • average color grade: H-I-J

The Setting: Prong-Set Basket Pendant, chain included

  • pendant metal: 18k white gold, solid
  • chain metal: .925 sterling silver, solid
  • stone orientation: North-South
  • pendant length: 23.23mm (0.9")
  • pendant width: 11.00mm (0.4")
  • bail opening width: 2.14mm
  • pendant weight: 3.67 grams (not including chain)
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