search
  • Sign In
    Sign Up
  • English speaking customer support only

    1-800-464-1640

    International:

    +66-39601289

  • Change Language
  • USD
  • CART
FREE SHIPPING

Buy 12 - 14 mm Opal Gems

(138)
12 - 14 mm Opal Gems Weight 12 - 14 mm Opal Gems Size 12 - 14 mm Opal Gems Clarity 12 - 14 mm Opal Gems Price 12 - 14 mm Opal Gems Origin
More
12 - 14 mm Opal Gems Single
12 - 14 mm Opal Gems Pairs
12 - 14 mm Opal Gems Lots
12 - 14 mm Opal Gems Faceted
12 - 14 mm Opal Gems Cabochons
Sort By:
Clear All
Photos are of Actual Products for Sale

3 ct Loose Trillion Opal, 12 x 11 mm From Australia

Natural Opal, Qty: 1 pc | 3.00 carat weight Opal

3.00ct1 Piece
$ 66.54
12 x 11 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 3.00 ct Opal
Opal Shape: Trillion Cabochon Opal
Opal Size: 12 x 11 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
4.91ct1 Piece
$ 108.90
12.7 x 10.9 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 4.91 ct Opal
Opal Shape: Oval Cabochon Opal
Opal Size: 12.7 x 10.9 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart

3.23 ct Loose Oval Opal, 13.3 x 9.7 mm From Australia

Natural Opal, Qty: 1 pc | 3.23 carat weight Opal

3.23ct1 Piece
$ 71.64
13.3 x 9.7 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 3.23 ct Opal
Opal Shape: Oval Cabochon Opal
Opal Size: 13.3 x 9.7 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart

2.84 ct Loose Pear Opal, 13.2 x 10.1 mm From Australia

Natural Opal, Qty: 1 pc | 2.84 carat weight Opal

2.84ct1 Piece
$ 62.99
13.2 x 10.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.84 ct Opal
Opal Shape: Pear Cabochon Opal
Opal Size: 13.2 x 10.1 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart

3.67 ct Loose Oval Cut Opal, 13.9 x 10.4 mm From Australia

Natural Opal, Qty: 1 pc | 3.67 carat weight Opal

3.67ct1 Piece
$ 92.63
13.9 x 10.4 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 3.67 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 13.9 x 10.4 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart

3.53 ct Loose Pear Opal, 12.6 x 9.3 mm From Australia

Natural Opal, Qty: 1 pc | 3.53 carat weight Opal

3.53ct1 Piece
$ 78.30
13 x 9.3 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 3.53 ct Opal
Opal Shape: Pear Cabochon Opal
Opal Size: 13 x 9.3 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
4.19ct1 Piece
$ 105.76
13.8 x 10.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 4.19 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 13.8 x 10.2 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
3.96ct1 Piece
$ 87.83
13.3 x 8.9 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 3.96 ct Opal
Opal Shape: Oval Cabochon Opal
Opal Size: 13.3 x 8.9 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
6.60ct1 Piece
$ 146.39
12.5 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 6.60 ct Opal
Opal Shape: Round Cabochon Opal
Opal Size: 12.5 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
3.72ct1 Piece
$ 93.89
13 x 9.8 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 3.72 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 13 x 9.8 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
3.90ct1 Piece
$ 98.44
12.4 x 9.7 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 3.90 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 12.4 x 9.7 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
2.85ct1 Piece
$ 63.21
12.3 x 11.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.85 ct Opal
Opal Shape: Pear Cabochon Opal
Opal Size: 12.3 x 11.2 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
7.17ct1 Piece
$ 159.03
13.6 x 12.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 7.17 ct Opal
Opal Shape: Pear Cabochon Opal
Opal Size: 13.6 x 12.2 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
2.84ct1 Piece
$ 62.99
12.6 x 8.3 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.84 ct Opal
Opal Shape: Pear Cabochon Opal
Opal Size: 12.6 x 8.3 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
3.54ct1 Piece
$ 89.35
13.8 x 10.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 3.54 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 13.8 x 10.2 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
4.14ct1 Piece
$ 104.49
13.8 x 9.8 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 4.14 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 13.8 x 9.8 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
4.25ct1 Piece
$ 107.27
13.2 x 10.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 4.25 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 13.2 x 10.2 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
3.52ct1 Piece
$ 88.84
13.6 x 10.3 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 3.52 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 13.6 x 10.3 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
3.48ct1 Piece
$ 87.84
13.3 x 10.3 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 3.48 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 13.3 x 10.3 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
2.74ct1 Piece
$ 69.16
12.2 x 9.9 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.74 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 12.2 x 9.9 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
1.82ct1 Piece
$ 45.50
12 x 8.6 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.82 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 12 x 8.6 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
2.96ct1 Piece
$ 74.00
12.3 x 9.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.96 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 12.3 x 9.2 mm Opal
Opal Color: Multicolor White Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
2.19ct1 Piece
$ 54.75
13.4 x 8.5 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.19 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 13.4 x 8.5 mm Opal
Opal Color: Multicolor White Opal
Opal Clarity: Translucent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
1.18ct1 Piece
$ 29.50
13.2 x 6.7 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.18 ct Opal
Opal Shape: Pear Facet Opal
Opal Size: 13.2 x 6.7 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
1.76ct1 Piece
$ 44.00
12.3 x 8.7 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.76 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 12.3 x 8.7 mm Opal
Opal Color: Multicolor White Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
2.03ct1 Piece
$ 50.75
12.1 x 8.8 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.03 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 12.1 x 8.8 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
1.96ct1 Piece
$ 49.00
12.1 x 8.6 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.96 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 12.1 x 8.6 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
2.86ct1 Piece
$ 71.50
13.3 x 8.5 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.86 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 13.3 x 8.5 mm Opal
Opal Color: Bluish White Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
2.90ct1 Piece
$ 72.50
13.5 x 10.1 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.90 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 13.5 x 10.1 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
1.70ct1 Piece
$ 42.50
12 x 8.4 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.70 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 12 x 8.4 mm Opal
Opal Color: Multicolor White Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
2.21ct1 Piece
$ 55.25
12.6 x 9.6 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.21 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 12.6 x 9.6 mm Opal
Opal Color: Multicolor White Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
2.48ct1 Piece
$ 62.00
12.4 x 9.4 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.48 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 12.4 x 9.4 mm Opal
Opal Color: Bluish White Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
1.93ct1 Piece
$ 48.25
13.1 x 9.5 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.93 ct Opal
Opal Shape: Pear Facet Opal
Opal Size: 13.1 x 9.5 mm Opal
Opal Color: Bluish White Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
1.33ct1 Piece
$ 33.25
12.7 x 7.2 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.33 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 12.7 x 7.2 mm Opal
Opal Color: Multicolor Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
2.96ct1 Piece
$ 74.00
12.6 x 9.7 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 2.96 ct Opal
Opal Shape: Oval Facet Opal
Opal Size: 12.6 x 9.7 mm Opal
Opal Color: Multicolor White Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
1.86ct1 Piece
$ 46.50
13.2 x 8 mm
Item Description
Stone Type: Loose Opal
Opal Weight: 1.86 ct Opal
Opal Shape: Pear Facet Opal
Opal Size: 13.2 x 8 mm Opal
Opal Color: Multicolor White Opal
Opal Clarity: Transparent Opal
Opal Origin: Australia Opal
Opal Treatment: Untreated
Opal Quantity: 1
Opal Certificate: GemSelect
Product Description:
View Details
Add to Cart
1 2 3
1 - 4
Read All

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

After having looked at other purchasing sites, this is my first choice.

Posted By MJC in January, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

The website design is a bit finicky for mobile, but Im sure its most likely just a mobile issue. Amazing selection of products, great prices.

Posted By Kuba in December, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a source for affordable genuine gemstones for my grandson who is currently very interested in rocks and gems. I was quite surprised and pleased to find GemSelect and finding the right stones at the right price couldn't have been simpler.

Posted By Papa in December, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I find the website user friendly.

Posted By Becky in August, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent experience!

Posted By Steph in April, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

was just windowshopping and spotted a couple "Very Uncommons", a tsavorite & a demantoid garnet that were both in a size I was looking for, & that I could very easily pay for -- so figured I would grab the tsavo ASAP and got the demantoid to accompany so they wouldn't be lonely.

Posted By Kittypie070 in April, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

The website is easy to navigate and the images are incredible.

Posted By Lindsy in October, 2023
Source: Bizrate

Overall Rating -> 9 star ratings

Never bought anything on this website before, but it probably won't be my last purchase. Definitely one of the easiest to use and most informative sites I've ever been to.

Posted By Bob in November, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

My only complaint is that there are so many beautiful and affordable stones that I get distracted from what I planned to order.

Posted By Phoenix in March, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

I am of the opinion that the company gem select cares about the product beautiful gems it sells and the cost of the gem I purchased was small i was treated as if it cost a lot of money and product was described in detail and i felt good about the little stones i had ordered.

Posted By Sparkle in March, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Hello: You do have good website. Vast majority of folks would buy the Gems for its spiritual, physical / energy level, emotional level positive aspects. You have only very brief mention of this aspect of each Gem ..may be you can add little bit more about ways to leverage the beneificial effect of each gems i.e. some practical tips.ThanksRupen Patel

Posted By EarthDeep in February, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

No issues at all. It was great.

Posted By LJXK in May, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Very pleased with shopping on this site. It's easy to navigate and information about gemstones is very good.

Posted By Kate in December, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I had a great time searching all the lovely stones. This is my first precious loose stone purchase for my own work. I chose sapphire, and found some lovely briolettes. I wanted 3, but this set of 4 was perfect. Everything was quick and easy, and I'm excited.

Posted By Phoenix in February, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Very good, very fast, everything as described.

Posted By B in October, 2023
Source: Bizrate
STAY IN TOUCH | NEWSLETTER
*You're signing up to receive GemSelect promotional email.
Partners and Trust Payment options

Switch to Mobile Version

Copyright © 2005-2024 GemSelect.com all rights reserved.

Reproduction (text or graphics) without the express written consent of GemSelect.com (SETT Company Ltd.) is strictly prohibited.

8031

Continue Shopping
Checkout
Continue Shopping
Checkout