Name: GIA Certified 8.69 Carat Cabochon Black Opal & Diamond in Platinum Cocktail Ring
Brand: Assay Jewelers
SKU: gia-certified-8-69-carat-cabochon-black-opal-diamond-in-platinum-cocktail-ring
Availability: InStock

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GIA Certified 8.69 Carat Cabochon Black Opal & Diamond in Platinum Cocktail Ring

$5,425.00

Original: $15,500.00

-65%

GIA Certified 8.69 Carat Cabochon Black Opal & Diamond in Platinum Cocktail Ring—

$15,500.00

$5,425.00

Original: $15,500.00

-65%

GIA Certified 8.69 Carat Cabochon Black Opal & Diamond in Platinum Cocktail Ring—

$15,500.00

$5,425.00

The Story

GIA-certified 8.69 carat oval cabochon black opal with no color treatment and 1.78 carat total weight baguette diamond ballerina halo in platinum 900 cocktail ring.

Ring Size 7.25, adjustable.

Product Specifications:

Item Type: Cocktail / Statement Ring
Metal: Platinum 900 (PT900)
Finish: Matte on band
Size: 7.25 (adjustable)
Total Weight: 17.03 grams
Ring Face Dimensions: 8.5mm x 23.5mm
Certification: GIA
Measurements: 8.5mm x 23.5mm (ring face)

Center Stone Details:

Gemstone: Natural Black Opal
Carat: 8.69
Cut: Oval Cabochon
Color: Deep blue-black with blue and teal play-of-color
Treatment: None (GIA certified, no color treatment)

Accent Stone Details:

Type: Diamond
Cut: Tapered Baguette
Total Carat Weight: 1.78 carats
Color: F–G
Clarity: VS
Setting Style: Ballerina halo (radiating outward)

About the Stones:

This GIA-certified 8.69 carat black opal is confirmed to have received no color treatment, making its vivid blue, violet, and teal play-of-color entirely natural — an exceptionally rare quality in a stone of this size. The oval cabochon cut maximizes the opal's color surface, allowing the rolling flashes of electric blue and cyan to shift dramatically with every movement. Surrounding the opal, 1.78 carats of tapered baguette diamonds in F–G color and VS clarity create a sparkling frame that amplifies the opal's depth and mystery. Black opals of this caliber with GIA no-treatment documentation are among the most collectible and investment-worthy gems in the fine jewelry market.