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Black Opals Gemma AI Opal 101
Estimated RRP
Closed
20/02/2026 03:24 pm
fortuneopal

3.45ct Lightning Ridge Black Opal FM1770

824 views
11 watching
Details
SKU
FM1770
Dimensions (mm)
15.7 x 8.3 x 5.9mm
Weight (cts)
3.45
Body Tone
N1
Shape
Freeform
Type
Cabochon
Colours
Description

FORTUNE OPAL MINING COMPANY

Our stones are 100% natural, as such they may have natural inclusions. Please refer to pictures and videos for details. If you require further info please don't hesitate to contact us.


FORTUNE OPAL MINING COMPANY

Check out our newest bargains!

http://www.opalauctions.com/stores/fortuneopal?order=new


All purchases are satisfaction guaranteed or your money back.

Direct from our active mines in Lightning Ridge, Australia. We are proud to offer a selection of Black and Semi Black Opal Rough and Rubs Parcels.

Located within the Coocoran Field our mines produce the finest stable black opal in the world. We have an extensive range of high end rubs and cut stones available on request. Please direct your inquiries to our opal auctions email.



Shipping
Provider Destination Cost
Standard Shipping - Tracked Default Rest of World
21 days
first item
per additional item
shipping capped at
Express Shipping Rest of World
14 days
first item
per additional item
shipping capped at
FedEx Rest of World
4 days
first item
per additional item
shipping capped at
Standard Shipping - Tracked Default Australia
7 days
first item
per additional item
shipping capped at
Express Shipping Australia
2 days
first item
per additional item
shipping capped at
FedEx Australia
2 days
first item
per additional item
shipping capped at
Store
3.45ct Lightning Ridge Black Opal FM1770

fortuneopal
Qld, Australia
Owned by fortuneopal
Verified
View all 3,479 Feedback
Recent Feedback
  • russn
    russn
    Positive

    I decided to take a chance and buy an opal online, as the “black opals” I found here in the US were overpriced trash. This seller provided exactly what the description and pictures promised. Very happy and I will be buying more from them.

2.17ct Lightning Ridge Black Crystal Opal LRS1575 2.17ct Lightning Ridge Black Crystal Opal LRS1575
3.45ct Lightning Ridge Black Opal FM1770 3.45ct Lightning Ridge Black Opal FM1770
  • emml82
    emml82
    Positive

    It was ok. Less dark in real life as i could question the N1 rating. But close enough to the video

1.22ct Lightning Ridge Black Opal FM1901 1.22ct Lightning Ridge Black Opal FM1901
  • fdzobel
    fdzobel
    Positive

    Beautiful opal! I chose this opal after looking through many (many) others for its play of colors and measurements. I was able to have my jeweler replace an opal in an heirloom ring from my mother. It turned out spectacular!

0.85ct Lightning Ridge Black Opal LRS1636 0.85ct Lightning Ridge Black Opal LRS1636
2.81ct Lightning Ridge Dark Opal FM1483 2.81ct Lightning Ridge Dark Opal FM1483
View All Feedback

Audit

The Opal Sheriff program allows our members to request an audit on any product, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.

Shipping Details

Costs:
Transit:
21 days via Standard Shipping - Tracked
Capped at:
Ships from:
Australia

Payment Options

  • paypal
  • stripe
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Overview

Listing Type : Standard
Product ID : 1618401
Starts : 11th February 2026 03:52 pm PST
* All prices are in USD

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