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16.69 ct Multicolor Boulder Opal Gemstone, Boulder Opal Gem in Round Cabochon Shape for Sale.
Photos are of Actual Product for Sale
16.69 ct Multicolor Boulder Opal Stone, Natural Boulder Opal in Round Cabochon Shape for Sale Boulder Opal Gemstone in 19.4 mm Size for Sale, Boulder Opal Stone in Multicolor Color

16.69ct Natural Multicolor Boulder Opal, Round Cut, 19.35 mm

9.7 out of 10
See Bizrate Ratings for GemSelect
Product ID: 302902
Type: Boulder Opal
Weight: 16.69 ct 1 gem
Size: mm calibrated
Size: 19.4 mm
Exact Size: 19.35 x 5.38 mm
Diameter x Depth
Shape: Round Cabochon
Color: Multicolor
Clarity: Opaque
Treatment: Untreated
Origin: Australia
Content: 1 pc
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$
116.83
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Product Description

This is a 16.69 carat natural multicolor Boulder Opal gem, 1 pc in round shape with an exact size of 19.35 mm x 5.38 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

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GemSelect Certified Store Reviews

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Overall Rating -> 9 star ratings

Nothing bad to report. Everything is as expected. The gems and the price are all very good.

Posted By Dafanatic in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It's mostly good, only some item's are easier to find through the search than the menu

Posted By Wayne in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and functional

Posted By Dessa in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very large selection from affordable to high end I will be coming back to shop again!

Posted By GreenGator in August, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.

Posted By Meyeusername in March, 2026
Source: Bizrate
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