90,000+Happy Customers
20+Years
WorldwideShipping
Cart
Free Report Included
Worldwide Shipping
30 Day Returns
Help Center Shipping Payment and Checkout Returns Certificates Contact Us
Home Gemstones Boulder Opal
21.10 ct Multicolor Boulder Opal Gemstone, Boulder Opal Gem in Oval Cabochon Shape for Sale.
Photos are of Actual Product for Sale
21.10 ct Multicolor Boulder Opal Stone, Natural Boulder Opal in Oval Cabochon Shape for Sale Boulder Opal Gemstone in 22.9 x 17.5 mm Size for Sale, Boulder Opal Stone in Multicolor Color

21.10ct Multicolor Boulder Opal, Oval Cut, 22.9x17.5 mm

9.7 out of 10
See Bizrate Ratings for GemSelect
Product ID: 321841
Type: Boulder Opal
Weight: 21.10 ct 1 gem
Size: mm calibrated
Size: 22.9 x 17.5 x 5.9 mm
Exact Size: 22.91 x 17.52 x 5.85 mm
Length x Width x Depth
Shape: Oval Cabochon
Color: Multicolor
Clarity: Opaque
Treatment: Untreated
Origin: Australia
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

$
105.50
Item is Sold
Certified Gemstones

RISK FREE

30 DAY RETURN MONEY BACK GUARANTEE

100%

FULLY GUARANTEED

Product Description

This is a 21.10 carat natural multicolor Boulder Opal gem, 1 pc in oval shape with an exact size of 22.91 x 17.52 x 5.85 mm. This loose Boulder Opal gemstone was mined in Australia and its clarity is Opaque. No treatment has been applied on this natural Boulder Opal stone

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

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I have a beautiful emerald I purchased from a company names gemselect and they are awesome! You should try them out?

Posted By Lynn in September, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

The website was easy to use and there were a lot of good options, I was satisfied.

Posted By Brielly in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

So far So good

Posted By VH-1 in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.

Posted By RJ in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.

Posted By Jen in December, 2025
Source: Bizrate
Download Identification Report PDF
Enlarged Gemstone Image