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

    1-800-464-1640

    International:

    +66-39601289

  • Change Language
  • USD
  • CART
FREE SHIPPING

Buy Octagon Shape 16x12 mm Gems

(21)
Octagon Shape 16x12 mm Gems Weight Octagon Shape 16x12 mm Gems Size Octagon Shape 16x12 mm Gems Clarity Octagon Shape 16x12 mm Gems Price Octagon Shape 16x12 mm Gems Origin
More
Octagon Shape 16x12 mm Gems Single
Octagon Shape 16x12 mm Gems Pairs
Octagon Shape 16x12 mm Gems Lots
Octagon Shape 16x12 mm Gems Faceted
Octagon Shape 16x12 mm Gems Cabochons
Sort By:
Clear All
Photos are of Actual Products for Sale
12.09ct1 Piece
$ 93.09
16.2 x 12.1 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 12.09 ct Citrine
Citrine Shape: Octagon Step Cut Citrine
Citrine Size: 16.2 x 12.1 mm Citrine
Citrine Color: Deep Golden Orange Citrine
Citrine Clarity: VVS-VS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart
12.26ct1 Piece
$ 79.84
16.1 x 12.1 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 12.26 ct Citrine
Citrine Shape: Octagon Step Cut Citrine
Citrine Size: 16.1 x 12.1 mm Citrine
Citrine Color: Bright Gold Citrine
Citrine Clarity: VVS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart
12.64ct1 Piece
$ 82.31
16 x 12.1 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 12.64 ct Citrine
Citrine Shape: Octagon Step Cut Citrine
Citrine Size: 16 x 12.1 mm Citrine
Citrine Color: Medium Gold Citrine
Citrine Clarity: VVS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart
10.85ct1 Piece
$ 70.06
16.1 x 12 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 10.85 ct Citrine
Citrine Shape: Octagon Step Cut Citrine
Citrine Size: 16.1 x 12 mm Citrine
Citrine Color: Medium Gold Citrine
Citrine Clarity: VVS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart
12.91ct1 Piece
$ 99.41
16.2 x 12.1 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 12.91 ct Citrine
Citrine Shape: Octagon Step Cut Citrine
Citrine Size: 16.2 x 12.1 mm Citrine
Citrine Color: Medium Golden Citrine
Citrine Clarity: VVS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart
12.01ct1 Piece
$ 77.55
16.1 x 12 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 12.01 ct Citrine
Citrine Shape: Octagon Step Cut Citrine
Citrine Size: 16.1 x 12 mm Citrine
Citrine Color: Medium-Dark Golden Citrine
Citrine Clarity: VVS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart
12.07ct1 Piece
$ 77.94
16.2 x 12.2 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 12.07 ct Citrine
Citrine Shape: Octagon Step Cut Citrine
Citrine Size: 16.2 x 12.2 mm Citrine
Citrine Color: Deep Golden Orange Citrine
Citrine Clarity: VVS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart
11.46ct1 Piece
$ 74.62
16 x 12 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 11.46 ct Citrine
Citrine Shape: Octagon Step Cut Citrine
Citrine Size: 16 x 12 mm Citrine
Citrine Color: Gold Citrine
Citrine Clarity: VVS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart

21.56 ct Octagon / Emerald Cut Bloodstone, 16 x 12.2 mm From Madagascar

Natural Bloodstone, Qty: 1 pc | 21.56 carat weight Bloodstone

21.56ct1 Piece
$ 43.12
16 x 12.2 mm
Item Description
Stone Type: Loose Bloodstone
Bloodstone Weight: 21.56 ct Bloodstone
Bloodstone Shape: Octagon Cabochon Bloodstone
Bloodstone Size: 16 x 12.2 mm Bloodstone
Bloodstone Color: Forest Green Bloodstone
Bloodstone Clarity: Opaque Bloodstone
Bloodstone Origin: Madagascar Bloodstone
Bloodstone Treatment: Untreated
Bloodstone Quantity: 1
Bloodstone Certificate: GemSelect
Product Description:
View Details
Add to Cart
10.80ct1 Piece
$ 63.94
16 x 12 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 10.80 ct Citrine
Citrine Shape: Octagon Step Cut Citrine
Citrine Size: 16 x 12 mm Citrine
Citrine Color: Medium Gold Citrine
Citrine Clarity: VVS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart
11.38ct1 Piece
$ 73.48
16.2 x 12 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 11.38 ct Citrine
Citrine Shape: Octagon Step Cut Citrine
Citrine Size: 16.2 x 12 mm Citrine
Citrine Color: Golden Citrine
Citrine Clarity: VVS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart
11.47ct1 Piece
$ 71.16
16.2 x 12.1 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 11.47 ct Citrine
Citrine Shape: Octagon Facet Citrine
Citrine Size: 16.2 x 12.1 mm Citrine
Citrine Color: Medium-Light Orange-Gold Citrine
Citrine Clarity: VVS-VS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart
12.10ct1 Piece
$ 75.06
15.9 x 12.1 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 12.10 ct Citrine
Citrine Shape: Octagon Facet Citrine
Citrine Size: 15.9 x 12.1 mm Citrine
Citrine Color: Deep Golden Orange Citrine
Citrine Clarity: VVS-VS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart

9.9 ct Yellow Quartz, 15.8 x 11.9 mm Octagon Concave Cut From Brazil

Natural Quartz, Qty: 1 pc | 9.90 carat weight Quartz

9.90ct1 Piece
$ 39.53
15.8 x 11.9 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 9.90 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 15.8 x 11.9 mm Quartz
Quartz Color: Medium Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
View Details
Add to Cart

9.03 ct Yellow Quartz, 16 x 11.9 mm Octagon Concave Cut From Brazil

Natural Quartz, Qty: 1 pc | 9.03 carat weight Quartz

9.03ct1 Piece
$ 36.06
16 x 11.9 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 9.03 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 16 x 11.9 mm Quartz
Quartz Color: Laguna Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
View Details
Add to Cart
12.21ct1 Piece
$ 78.84
16.1 x 12 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 12.21 ct Citrine
Citrine Shape: Octagon Step Cut Citrine
Citrine Size: 16.1 x 12 mm Citrine
Citrine Color: Medium Golden Citrine
Citrine Clarity: VVS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart
12.27ct1 Piece
$ 79.22
16.1 x 12 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 12.27 ct Citrine
Citrine Shape: Octagon Step Cut Citrine
Citrine Size: 16.1 x 12 mm Citrine
Citrine Color: Dark Golden Citrine
Citrine Clarity: VVS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart

15.55 ct Pink Kunzite, 16.6 x 11.8 mm Octagon Cut From Afghanistan

Natural Kunzite, Qty: 1 pc | 15.55 carat weight Kunzite

15.55ct1 Piece
$ 388.75
16.6 x 11.8 mm
Item Description
Stone Type: Loose Kunzite
Kunzite Weight: 15.55 ct Kunzite
Kunzite Shape: Octagon Step Cut Kunzite
Kunzite Size: 16.6 x 11.8 mm Kunzite
Kunzite Color: Light Rose Pink Kunzite
Kunzite Clarity: VS Kunzite
Kunzite Origin: Afghanistan Kunzite
Kunzite Treatment: Untreated
Kunzite Quantity: 1
Kunzite Certificate: GemSelect
Product Description:
View Details
Add to Cart
11.43ct1 Piece
$ 73.80
16.1 x 12 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 11.43 ct Citrine
Citrine Shape: Octagon Step Cut Citrine
Citrine Size: 16.1 x 12 mm Citrine
Citrine Color: Medium Gold Citrine
Citrine Clarity: VVS-VS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart
10.78ct1 Piece
$ 66.88
16.1 x 12 mm
Item Description
Stone Type: Loose Citrine
Citrine Weight: 10.78 ct Citrine
Citrine Shape: Octagon Facet Citrine
Citrine Size: 16.1 x 12 mm Citrine
Citrine Color: Golden Citrine
Citrine Clarity: VVS-VS Citrine
Citrine Origin: Brazil Citrine
Citrine Treatment: Untreated
Citrine Quantity: 1
Citrine Certificate: GemSelect
Product Description:
View Details
Add to Cart

10.98 ct Yellow Quartz, 16 x 12 mm Octagon Concave Cut From Brazil

Natural Quartz, Qty: 1 pc | 10.98 carat weight Quartz

10.98ct1 Piece
$ 43.85
16 x 12 mm
Item Description
Stone Type: Loose Quartz
Quartz Weight: 10.98 ct Quartz
Quartz Shape: Octagon Concave Cut Quartz
Quartz Size: 16 x 12 mm Quartz
Quartz Color: Medium-Light Yellow Quartz
Quartz Clarity: VVS Quartz
Quartz Origin: Brazil Quartz
Quartz Treatment: Irradiated
Quartz Quantity: 1
Quartz Certificate: GemSelect
Product Description:
View Details
Add to Cart

Some people by gems by color or price, but for many, it is best to buy gems by shape and size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated Octagon shape / Emerald-Cut, faceted and cabochon gems available now in 16 x 12 mm size range. Shop a wide range of calibrated gemstones by size online at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not usually expected to be cut to exact measurements. For calibrated gemstones weighing under one carat, most jewelry settings will accommodate a gem which is within 0.2 mm of the calibrated size in order to fit a standard setting. For gemstones that weigh over one carat, a larger variance is acceptable, often round shape settings will allow 0.3 mm or slightly higher even. This small variance can usually be accommodated for most standard style settings. Round-cut gemstones should also have a greater variance in acceptable size when it comes to calibration; in fact it is usually possible to mount a round stone of any size in the closest standard setting.

Read All

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Very large selection of items and we used the stones to have several pieces of jewelry made for us.

Posted By Joe in January, 2024
Source: Bizrate

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

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

I FOUND WHAT I WANT IT

Posted By GABY in March, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Very good, very fast, everything as described.

Posted By B in October, 2023
Source: Bizrate

Overall Rating -> 8 star ratings

Very easy to find the specific stone I was looking for. I am pleased by both the selection and the price of the stones that are available. The only "bad" thing that I have to say is that the interface of the site is outdated.

Posted By Nick in March, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Todo muy bien en la compra ahora esperar recibir el pedido.

Posted By MAGSMX in August, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

great. thank you

Posted By Carrotroller in July, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I have had and will always have a great time shopping at GemSelect. It's a great web site with great products and great service.

Posted By Apps in November, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

The website was very easy to navigate. We appreciated the details about each gem, and the sort and search features of the website were helpful and easy to use.

Posted By AV in May, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I have used Gem Select many times over the past 10 years and have always been happy with the product & services

Posted By Ordain in August, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I love GemSelect, photos and details are great.

Posted By #1 in February, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Trustworthy site. I've had several good experiences with company. Products always have met my expectations. Thank you.

Posted By Ray in February, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By Mic in May, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I particularly like information about product provided with purchase.

Posted By Dick in May, 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.

965

Continue Shopping
Checkout
Continue Shopping
Checkout