X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

12.31 ct Yellow Quartz Gemstone, Quartz Gem in Octagon Concave Cut Shape for Sale.
Photos are of Actual Product for Sale
12.31 ct Yellow Quartz Stone, Natural Quartz in Octagon Concave Cut Shape for Sale Quartz Gemstone in 16 x 16 mm (calibrated) Size for Sale, Quartz Stone in Greenish Yellow Color

12.31ct Natural Greenish Yellow Quartz, Octagon / Emerald Cut, VVS

9.2 out of 10
See Bizrate Ratings for GemSelect
Quartz Product ID: 625144
Type: Quartz
Quartz Weight: 12.31 ct Quartz 1 gem
Quartz Size: 16 x 16 mm calibrated Quartz
Quartz Size: 15.7 x 15.8 x 9.3 mm Quartz
Quartz Exact Size: 15.68 x 15.79 x 9.33 mm
Length x Width x Depth
Quartz Shape: Octagon Concave Cut Quartz
Quartz Color: Greenish Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Treatment: Irradiated
Quartz Origin: Brazil Quartz
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

$
65.16
Item in Stock
Certified Gemstones

RISK FREE

30 DAY RETURN MONEY BACK GUARANTEE

100%

FULLY GUARANTEED

Product Description

This is a 12.31 carat natural greenish yellow Quartz gem, 1 pc in octagon / emerald cut shape with an exact size of 15.68 x 15.79 x 9.33 mm. This loose Quartz gemstone was mined in Brazil and its clarity is VVS (Eye Clean).

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

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

Was a good experience.

Posted By Tim in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

The checkout said the my ccv was invalid. i had to use another card.

Posted By Ron in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 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

Great selection of gems at a reasonable price

Posted By Curt in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I am filling a small treasure chest and picked a nice amethyst.

Posted By VinnyD in August, 2025
Source: Bizrate

Overall Rating -> 7 star ratings

Okay thank you.

Posted By Bepc61 in March, 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
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