X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

18.90 ct Green Opal Gemstone, Opal Gem in Oval Cabochon Shape for Sale.
Photos are of Actual Product for Sale
18.90 ct Green Opal Stone, Natural Opal in Oval Cabochon Shape for Sale Opal Gemstone in 18.9 x 15.8 mm Size for Sale, Opal Stone in Medium Green Color

18.90ct Natural Medium Green Opal, Oval, Opaque

9.2 out of 10
See Bizrate Ratings for GemSelect
Opal Product ID: 675197
Type: Opal
Opal Weight: 18.90 ct Opal 1 gem
Opal Size: mm calibrated Opal
Opal Size: 18.9 x 15.8 x 11.9 mm Opal
Opal Exact Size: 18.86 x 15.79 x 11.94 mm
Length x Width x Depth
Opal Shape: Oval Cabochon Opal
Opal Color: Medium Green Opal
Opal Clarity: Opaque Opal
Opal Treatment: Untreated
Opal Origin: Brazil 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

$
48.77
Item in Stock
Certified Gemstones

RISK FREE

30 DAY RETURN MONEY BACK GUARANTEE

100%

FULLY GUARANTEED

Product Description

This is a 18.90 carat natural medium green Opal gem, 1 pc in oval shape with an exact size of 18.86 x 15.79 x 11.94 mm. This loose Opal gemstone was mined in Brazil and its clarity is Opaque. No treatment has been applied on this natural Opal stone

GemSelect Policies

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Had a great experience and the prices are great

Posted By BuBx99 in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the product and the details about each of them.

Posted By Love It! in July, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I can pick and choose from large selection and find just what I need for .y projects, currently my cane.

Posted By Darkstar731 in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love Gem Select! When you order what you see is what you get. As soon as you make payment that particular gem is taken off the photo album. That way the one you select is a one of that kind.

Posted By Desertchick in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

When I need a specific stone, gem select is my go to shop. Always a good experience and a great product.

Posted By LeAnn in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to navigate

Posted By GemGod in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I am very pleased with the ways you can filter your searches on this site, finding exactly what I want with little knowledge of what I am looking for is surprisingly easy!

Posted By Leo in March, 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