X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

6.68 ct Multicolor Black Opal Gemstone, Black Opal Gem in Marquise Cabochon Shape for Sale.
Photos are of Actual Product for Sale
6.68 ct Multicolor Black Opal Stone, Natural Black Opal in Marquise Cabochon Shape for Sale Black Opal Gemstone in 20 x 10 mm (calibrated) Size for Sale, Black Opal Stone in Multicolor Color

6.68ct Natural Multicolor Black Opal, Marquise, Opaque

9.4 out of 10
See Bizrate Ratings for GemSelect
Black Opal Product ID: 679821
Type: Black Opal
Black Opal Weight: 6.68 ct Black Opal 1 gem
Black Opal Size: 20 x 10 mm calibrated Black Opal
Black Opal Size: 19.5 x 10.3 x 7.5 mm Black Opal
Black Opal Exact Size: 19.54 x 10.25 x 7.46 mm
Length x Width x Depth
Black Opal Shape: Marquise Cabochon Black Opal
Black Opal Color: Multicolor Black Opal
Black Opal Clarity: Opaque Black Opal
Black Opal Treatment: Smoked
Black Opal Origin: Ethiopia Black Opal
Content: 1 pc
Certificate Options

Checking all Boxes

  • Natural certified gemstones

    Gemstone Laboratories
  • Accept Credit, Debit Card and PayPal

    Payment Options
  • Worldwide shipping

    Shipping Options
  • 30-day risk free return policy

$
240.48
Item in Stock
Certified Gemstones

RISK FREE

30 DAY RETURN MONEY BACK GUARANTEE

100%

FULLY GUARANTEED

Product Description

This is a 6.68 carat natural multicolor Black Opal gem, 1 pc in marquise shape with an exact size of 19.54 x 10.25 x 7.46 mm. This loose Black Opal gemstone was mined in Ethiopia and its clarity is Opaque.

GemSelect Policies

GemSelect Certified Store Reviews

GemSelect: Over 18 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

This was a great time as always. The only problem I had was deciding between all the beautiful and affordable stones that met my requirements. I love shopping for sapphires!

Posted By Phoenix in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I'm happy.

Posted By Ray in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found what I was looking for...had to look up millimeters to inches. It would be nice to see something, like a quarter, in the pix to show relative size. I plan on buy loose gemstones for every month in the calendar

Posted By TheP in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.

Posted By Razormane in April, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Easy website to navigate, lots of different varieties and options to choose from.

Posted By Brian in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones..

Posted By Steven M. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was my second time so I understand what it is to do

Posted By Ibie in February, 2025
Source: Bizrate
Download Identification Report PDF
BGL Brief Report $ 18.00
Turnaround Time: 3-4 working days Details
AIG Brief Report $ 35.00
Turnaround Time: 5-10 working days Details
ICA Brief Report $ 62.00
Turnaround Time: 8-12 working days Details
Enlarged Gemstone Image