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

    1-800-464-1640

    International:

    +66-39601289

  • Change Language
  • USD
  • CART
FREE SHIPPING

Buy 17 ct Gemstones

(31)
17 ct Gemstones Weight 17 ct Gemstones Size 17 ct Gemstones Clarity 17 ct Gemstones Price 17 ct Gemstones Origin
Sort By:
Clear All
Photos are of Actual Products for Sale

17.64 ct Trillion Obsidian, 24.6 x 22.2 mm From the United States

Natural Obsidian, Qty: 1 pc | 17.64 carat weight Obsidian

17.64ct1 Piece
$ 13.23
24.6 x 22.2 mm
Item Description
Stone Type: Loose Obsidian
Obsidian Weight: 17.64 ct Obsidian
Obsidian Shape: Trillion Cabochon Obsidian
Obsidian Size: 24.6 x 22.2 mm Obsidian
Obsidian Color: Black with Gold Sheen Obsidian
Obsidian Clarity: Opaque Obsidian
Obsidian Origin: United States Obsidian
Obsidian Treatment: Untreated
Obsidian Quantity: 1
Obsidian Certificate: GemSelect
Product Description:
View Details
Add to Cart
16.84ct1 Piece
$ 84.20
18.8 x 15.3 mm
Item Description
Stone Type: Loose Tourmaline
Tourmaline Weight: 16.84 ct Tourmaline
Tourmaline Shape: Pear Facet Tourmaline
Tourmaline Size: 18.8 x 15.3 mm Tourmaline
Tourmaline Color: Schorl Tourmaline
Tourmaline Clarity: Opaque Tourmaline
Tourmaline Origin: Mozambique Tourmaline
Tourmaline Treatment: Untreated
Tourmaline Quantity: 1
Tourmaline Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.42ct1 Piece
$ 28.74
25.6 x 16 mm
Item Description
Stone Type: Loose Obsidian
Obsidian Weight: 17.42 ct Obsidian
Obsidian Shape: Pear Cabochon Obsidian
Obsidian Size: 25.6 x 16 mm Obsidian
Obsidian Color: Black with Bronze Obsidian
Obsidian Clarity: Opaque Obsidian
Obsidian Origin: United States Obsidian
Obsidian Treatment: Untreated
Obsidian Quantity: 1
Obsidian Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.94ct1 Piece
$ 29.60
27.7 x 19.1 mm
Item Description
Stone Type: Loose Obsidian
Obsidian Weight: 17.94 ct Obsidian
Obsidian Shape: Pear Cabochon Obsidian
Obsidian Size: 27.7 x 19.1 mm Obsidian
Obsidian Color: Light Blackish Brown Obsidian
Obsidian Clarity: Opaque Obsidian
Obsidian Origin: United States Obsidian
Obsidian Treatment: Untreated
Obsidian Quantity: 1
Obsidian Certificate: GemSelect
Product Description:
View Details
Add to Cart
16.87ct1 Piece
$ 12.65
28.3 x 19 mm
Item Description
Stone Type: Loose Obsidian
Obsidian Weight: 16.87 ct Obsidian
Obsidian Shape: Pear Cabochon Obsidian
Obsidian Size: 28.3 x 19 mm Obsidian
Obsidian Color: Black with Gold Sheen Obsidian
Obsidian Clarity: Opaque Obsidian
Obsidian Origin: United States Obsidian
Obsidian Treatment: Untreated
Obsidian Quantity: 1
Obsidian Certificate: GemSelect
Product Description:
View Details
Add to Cart

17.5 ct Oval Nuummite, 19.2 x 14.4 mm From India

Natural Nuummite, Qty: 1 pc | 17.50 carat weight Nuummite

17.50ct1 Piece
$ 77.18
19.2 x 14.4 mm
Item Description
Stone Type: Loose Nuummite
Nuummite Weight: 17.50 ct Nuummite
Nuummite Shape: Oval Cabochon Nuummite
Nuummite Size: 19.2 x 14.4 mm Nuummite
Nuummite Color: Black with Blue Sparkle Nuummite
Nuummite Clarity: Opaque Nuummite
Nuummite Origin: India Nuummite
Nuummite Treatment: Untreated
Nuummite Quantity: 1
Nuummite Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.33ct1 Piece
$ 86.65
22.3 x 15.1 mm
Item Description
Stone Type: Loose Tourmaline
Tourmaline Weight: 17.33 ct Tourmaline
Tourmaline Shape: Oval Facet Tourmaline
Tourmaline Size: 22.3 x 15.1 mm Tourmaline
Tourmaline Color: Schorl Tourmaline
Tourmaline Clarity: Opaque Tourmaline
Tourmaline Origin: Mozambique Tourmaline
Tourmaline Treatment: Untreated
Tourmaline Quantity: 1
Tourmaline Certificate: GemSelect
Product Description:
View Details
Add to Cart
16.89ct1 Piece
$ 84.45
17.1 x 14.8 mm
Item Description
Stone Type: Loose Tourmaline
Tourmaline Weight: 16.89 ct Tourmaline
Tourmaline Shape: Oval Facet Tourmaline
Tourmaline Size: 17.1 x 14.8 mm Tourmaline
Tourmaline Color: Schorl Tourmaline
Tourmaline Clarity: Opaque Tourmaline
Tourmaline Origin: Mozambique Tourmaline
Tourmaline Treatment: Untreated
Tourmaline Quantity: 1
Tourmaline Certificate: GemSelect
Product Description:
View Details
Add to Cart

16.58 ct Oval Cut Nuummite, 17.7 x 15.2 mm From India

Natural Nuummite, Qty: 1 pc | 16.58 carat weight Nuummite

16.58ct1 Piece
$ 68.31
17.7 x 15.2 mm
Item Description
Stone Type: Loose Nuummite
Nuummite Weight: 16.58 ct Nuummite
Nuummite Shape: Oval Facet Nuummite
Nuummite Size: 17.7 x 15.2 mm Nuummite
Nuummite Color: Black with Blue Sparkle Nuummite
Nuummite Clarity: Opaque Nuummite
Nuummite Origin: India Nuummite
Nuummite Treatment: Untreated
Nuummite Quantity: 1
Nuummite Certificate: GemSelect
Product Description:
View Details
Add to Cart
16.78ct1 Piece
$ 83.90
19.4 x 15.1 mm
Item Description
Stone Type: Loose Tourmaline
Tourmaline Weight: 16.78 ct Tourmaline
Tourmaline Shape: Oval Facet Tourmaline
Tourmaline Size: 19.4 x 15.1 mm Tourmaline
Tourmaline Color: Schorl Tourmaline
Tourmaline Clarity: Opaque Tourmaline
Tourmaline Origin: Mozambique Tourmaline
Tourmaline Treatment: Untreated
Tourmaline Quantity: 1
Tourmaline Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.01ct1 Piece
$ 17.10
21.8 x 17.8 mm
Item Description
Stone Type: Loose Onyx
Onyx Weight: 17.01 ct Onyx
Onyx Shape: Pear Rose-Cut Onyx
Onyx Size: 21.8 x 17.8 mm Onyx
Onyx Color: Black Onyx
Onyx Clarity: Opaque Onyx
Onyx Origin: Sri Lanka Onyx
Onyx Treatment: Dyed
Onyx Quantity: 1
Onyx Certificate: GemSelect
Product Description:
View Details
Add to Cart

17.12 ct Oval Cut Nuummite, 21.5 x 14.1 mm From India

Natural Nuummite, Qty: 1 pc | 17.12 carat weight Nuummite

17.12ct1 Piece
$ 70.53
21.5 x 14.1 mm
Item Description
Stone Type: Loose Nuummite
Nuummite Weight: 17.12 ct Nuummite
Nuummite Shape: Oval Facet Nuummite
Nuummite Size: 21.5 x 14.1 mm Nuummite
Nuummite Color: Black with Blue Sparkle Nuummite
Nuummite Clarity: Opaque Nuummite
Nuummite Origin: India Nuummite
Nuummite Treatment: Untreated
Nuummite Quantity: 1
Nuummite Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.95ct1 Piece
$ 89.75
19.2 x 12.8 mm
Item Description
Stone Type: Loose Tourmaline
Tourmaline Weight: 17.95 ct Tourmaline
Tourmaline Shape: Octagon Step Cut Tourmaline
Tourmaline Size: 19.2 x 12.8 mm Tourmaline
Tourmaline Color: Schorl Tourmaline
Tourmaline Clarity: Opaque Tourmaline
Tourmaline Origin: Tanzania Tourmaline
Tourmaline Treatment: Untreated
Tourmaline Quantity: 1
Tourmaline Certificate: GemSelect
Product Description:
View Details
Add to Cart

17.08 ct Marquise Obsidian, 27.9 x 14 mm From Mexico

Natural Obsidian, Qty: 1 pc | 17.08 carat weight Obsidian

17.08ct1 Piece
$ 18.79
27.9 x 14 mm
Item Description
Stone Type: Loose Obsidian
Obsidian Weight: 17.08 ct Obsidian
Obsidian Shape: Marquise Cabochon Obsidian
Obsidian Size: 27.9 x 14 mm Obsidian
Obsidian Color: Black with Gold Sheen Obsidian
Obsidian Clarity: Opaque Obsidian
Obsidian Origin: Mexico Obsidian
Obsidian Treatment: Untreated
Obsidian Quantity: 1
Obsidian Certificate: GemSelect
Product Description:
View Details
Add to Cart
16.54ct1 Piece
$ 27.29
25.9 x 18.9 mm
Item Description
Stone Type: Loose Obsidian
Obsidian Weight: 16.54 ct Obsidian
Obsidian Shape: Pear Cabochon Obsidian
Obsidian Size: 25.9 x 18.9 mm Obsidian
Obsidian Color: Black with Bronze Obsidian
Obsidian Clarity: Opaque Obsidian
Obsidian Origin: United States Obsidian
Obsidian Treatment: Untreated
Obsidian Quantity: 1
Obsidian Certificate: GemSelect
Product Description:
View Details
Add to Cart

17.87 ct Trillion Obsidian, 24.8 x 20.1 mm From the United States

Natural Obsidian, Qty: 1 pc | 17.87 carat weight Obsidian

17.87ct1 Piece
$ 29.49
24.8 x 20.1 mm
Item Description
Stone Type: Loose Obsidian
Obsidian Weight: 17.87 ct Obsidian
Obsidian Shape: Trillion Cabochon Obsidian
Obsidian Size: 24.8 x 20.1 mm Obsidian
Obsidian Color: Black with Gold Sheen Obsidian
Obsidian Clarity: Opaque Obsidian
Obsidian Origin: United States Obsidian
Obsidian Treatment: Untreated
Obsidian Quantity: 1
Obsidian Certificate: GemSelect
Product Description:
View Details
Add to Cart

17.27 ct Cushion Nuummite, 17.5 x 13.9 mm From India

Natural Nuummite, Qty: 1 pc | 17.27 carat weight Nuummite

17.27ct1 Piece
$ 68.56
17.5 x 13.9 mm
Item Description
Stone Type: Loose Nuummite
Nuummite Weight: 17.27 ct Nuummite
Nuummite Shape: Cushion Cabochon Nuummite
Nuummite Size: 17.5 x 13.9 mm Nuummite
Nuummite Color: Black with Blue Sparkle Nuummite
Nuummite Clarity: Opaque Nuummite
Nuummite Origin: India Nuummite
Nuummite Treatment: Untreated
Nuummite Quantity: 1
Nuummite Certificate: GemSelect
Product Description:
View Details
Add to Cart

17.9 ct Oval Onyx, 21.8 x 15.8 mm From Sri Lanka

Natural Onyx, Qty: 1 pc | 17.90 carat weight Onyx

17.90ct1 Piece
$ 35.80
21.8 x 15.8 mm
Item Description
Stone Type: Loose Onyx
Onyx Weight: 17.90 ct Onyx
Onyx Shape: Oval Cabochon Onyx
Onyx Size: 21.8 x 15.8 mm Onyx
Onyx Color: Black Onyx
Onyx Clarity: Opaque Onyx
Onyx Origin: Sri Lanka Onyx
Onyx Treatment: Dyed
Onyx Quantity: 1
Onyx Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.46ct1 Piece
$ 13.10
23.5 x 18.5 mm
Item Description
Stone Type: Loose Obsidian
Obsidian Weight: 17.46 ct Obsidian
Obsidian Shape: Pear Cabochon Obsidian
Obsidian Size: 23.5 x 18.5 mm Obsidian
Obsidian Color: Black with Gold Sheen Obsidian
Obsidian Clarity: Opaque Obsidian
Obsidian Origin: United States Obsidian
Obsidian Treatment: Untreated
Obsidian Quantity: 1
Obsidian Certificate: GemSelect
Product Description:
View Details
Add to Cart

17.74 ct Fancy Obsidian, 25.9 x 17.2 mm From the United States

Natural Obsidian, Qty: 1 pc | 17.74 carat weight Obsidian

17.74ct1 Piece
$ 13.31
25.9 x 17.2 mm
Item Description
Stone Type: Loose Obsidian
Obsidian Weight: 17.74 ct Obsidian
Obsidian Shape: Fancy Cabochon Obsidian
Obsidian Size: 25.9 x 17.2 mm Obsidian
Obsidian Color: Black with Gold Sheen Obsidian
Obsidian Clarity: Opaque Obsidian
Obsidian Origin: United States Obsidian
Obsidian Treatment: Untreated
Obsidian Quantity: 1
Obsidian Certificate: GemSelect
Product Description:
View Details
Add to Cart
16.70ct1 Piece
$ 83.50
16.4 x 13.9 mm
Item Description
Stone Type: Loose Tourmaline
Tourmaline Weight: 16.70 ct Tourmaline
Tourmaline Shape: Oval Facet Tourmaline
Tourmaline Size: 16.4 x 13.9 mm Tourmaline
Tourmaline Color: Schorl Tourmaline
Tourmaline Clarity: Opaque Tourmaline
Tourmaline Origin: Mozambique Tourmaline
Tourmaline Treatment: Untreated
Tourmaline Quantity: 1
Tourmaline Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.83ct1 Piece
$ 89.15
19.1 x 14.7 mm
Item Description
Stone Type: Loose Tourmaline
Tourmaline Weight: 17.83 ct Tourmaline
Tourmaline Shape: Oval Facet Tourmaline
Tourmaline Size: 19.1 x 14.7 mm Tourmaline
Tourmaline Color: Schorl Tourmaline
Tourmaline Clarity: Opaque Tourmaline
Tourmaline Origin: Mozambique Tourmaline
Tourmaline Treatment: Untreated
Tourmaline Quantity: 1
Tourmaline Certificate: GemSelect
Product Description:
View Details
Add to Cart
16.98ct1 Piece
$ 84.90
18 x 15.1 mm
Item Description
Stone Type: Loose Tourmaline
Tourmaline Weight: 16.98 ct Tourmaline
Tourmaline Shape: Oval Facet Tourmaline
Tourmaline Size: 18 x 15.1 mm Tourmaline
Tourmaline Color: Schorl Tourmaline
Tourmaline Clarity: Opaque Tourmaline
Tourmaline Origin: Mozambique Tourmaline
Tourmaline Treatment: Untreated
Tourmaline Quantity: 1
Tourmaline Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.86ct1 Piece
$ 63.76
15.2 x 14.5 mm
Item Description
Stone Type: Loose Tourmaline
Tourmaline Weight: 17.86 ct Tourmaline
Tourmaline Shape: Cushion-Cut Tourmaline
Tourmaline Size: 15.2 x 14.5 mm Tourmaline
Tourmaline Color: Schorl Tourmaline
Tourmaline Clarity: Opaque Tourmaline
Tourmaline Origin: Mozambique Tourmaline
Tourmaline Treatment: Untreated
Tourmaline Quantity: 1
Tourmaline Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.58ct1 Piece
$ 87.90
16.6 x 14 mm
Item Description
Stone Type: Loose Tourmaline
Tourmaline Weight: 17.58 ct Tourmaline
Tourmaline Shape: Octagon Step Cut Tourmaline
Tourmaline Size: 16.6 x 14 mm Tourmaline
Tourmaline Color: Schorl Tourmaline
Tourmaline Clarity: Opaque Tourmaline
Tourmaline Origin: Tanzania Tourmaline
Tourmaline Treatment: Untreated
Tourmaline Quantity: 1
Tourmaline Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.62ct1 Piece
$ 62.90
17 x 12.9 mm
Item Description
Stone Type: Loose Tourmaline
Tourmaline Weight: 17.62 ct Tourmaline
Tourmaline Shape: Cushion-Cut Tourmaline
Tourmaline Size: 17 x 12.9 mm Tourmaline
Tourmaline Color: Schorl Tourmaline
Tourmaline Clarity: Opaque Tourmaline
Tourmaline Origin: Mozambique Tourmaline
Tourmaline Treatment: Untreated
Tourmaline Quantity: 1
Tourmaline Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.02ct1 Piece
$ 12.77
22.6 x 16.8 mm
Item Description
Stone Type: Loose Obsidian
Obsidian Weight: 17.02 ct Obsidian
Obsidian Shape: Pear Cabochon Obsidian
Obsidian Size: 22.6 x 16.8 mm Obsidian
Obsidian Color: Black with Gold Sheen Obsidian
Obsidian Clarity: Opaque Obsidian
Obsidian Origin: United States Obsidian
Obsidian Treatment: Untreated
Obsidian Quantity: 1
Obsidian Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.27ct1 Piece
$ 86.35
25 x 10.7 mm
Item Description
Stone Type: Loose Tourmaline
Tourmaline Weight: 17.27 ct Tourmaline
Tourmaline Shape: Octagon Step Cut Tourmaline
Tourmaline Size: 25 x 10.7 mm Tourmaline
Tourmaline Color: Schorl Tourmaline
Tourmaline Clarity: Opaque Tourmaline
Tourmaline Origin: Mozambique Tourmaline
Tourmaline Treatment: Untreated
Tourmaline Quantity: 1
Tourmaline Certificate: GemSelect
Product Description:
View Details
Add to Cart
16.64ct1 Piece
$ 83.20
15.5 x 13.4 mm
Item Description
Stone Type: Loose Tourmaline
Tourmaline Weight: 16.64 ct Tourmaline
Tourmaline Shape: Octagon Step Cut Tourmaline
Tourmaline Size: 15.5 x 13.4 mm Tourmaline
Tourmaline Color: Schorl Tourmaline
Tourmaline Clarity: Opaque Tourmaline
Tourmaline Origin: Mozambique Tourmaline
Tourmaline Treatment: Untreated
Tourmaline Quantity: 1
Tourmaline Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.61ct1 Piece
$ 13.21
26.2 x 22.5 mm
Item Description
Stone Type: Loose Obsidian
Obsidian Weight: 17.61 ct Obsidian
Obsidian Shape: Pear Cabochon Obsidian
Obsidian Size: 26.2 x 22.5 mm Obsidian
Obsidian Color: Black with Gold Sheen Obsidian
Obsidian Clarity: Opaque Obsidian
Obsidian Origin: United States Obsidian
Obsidian Treatment: Untreated
Obsidian Quantity: 1
Obsidian Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.65ct1 Piece
$ 88.25
18.2 x 13.7 mm
Item Description
Stone Type: Loose Tourmaline
Tourmaline Weight: 17.65 ct Tourmaline
Tourmaline Shape: Oval Facet Tourmaline
Tourmaline Size: 18.2 x 13.7 mm Tourmaline
Tourmaline Color: Schorl Tourmaline
Tourmaline Clarity: Opaque Tourmaline
Tourmaline Origin: Mozambique Tourmaline
Tourmaline Treatment: Untreated
Tourmaline Quantity: 1
Tourmaline Certificate: GemSelect
Product Description:
View Details
Add to Cart
Shop from our extensive range of beautiful, natural 17-carat gems. Browse the largest selection of natural loose colored gemstones available in 17 carats. Our large gemstone selection includes many popular gem types, such as amethyst, citrine, topaz and turquoise, and lesser-known gems, including ruby-zoisite, ammolite and maw-sit-sit. From here, you can use our filters at the top or on the left-hand side to find gems by gem type, color, shape, cut and so on. For example, select 'tourmaline' to see all of our 17-carat tourmaline gems. Select 'multicolor' to shop for 17-carat multicolor gems. You can also filter by single, pairs, lots, faceted gems or cabochons by using the check boxes at the top.
Read All

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

I was pleased with the selection of gems, the ease of navigating, and the smooth checkout

Posted By JamesMichael781 in September, 2023
Source: Bizrate

Overall Rating -> 9 star ratings

Not easy enough to buy by exact size, and many stones aren't carbechon curved shape on top

Posted By Erick in July, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Was easy to search for many gems and mineral stones.Authenticity of natural stones is important, and I feel this site offers some assurance on this.

Posted By DanM in November, 2023
Source: Bizrate

Overall Rating -> 9 star ratings

over the experience was similar to other sites i have used. The only real note I have is the checkout experience was tedious and discriminatory, i wouldn't accept visa gift cards, which not only have guaranteed funds but help protect from misuse of personal information, but would not accept my visa b/c it is a prepaid card. I don't have bank account and I have been using the prepaid card for years without issue so this was disappointing to me. I feel safer using reputable gem sites rather than amazon or ebay (I have been sold fake gems with fake certs on both), but not being able to use my own valid legitimate funds and having to find a friend to buy for me b/c I use a non-bank card like 40% of the country is insulting.

Posted By Iggywiggly in January, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and fast

Posted By Mark in February, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

An it was good.

Posted By Miguel in June, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Best place to buy gem stones, dont bother shopping else where. Prices are great, no issues with shipping and customer service is the best.

Posted By J in December, 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

Found the stone I wanted which was delivered quickly and met expectations.

Posted By GemGrammy in January, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Super easy to do business for great products.

Posted By BoBBy in January, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to use website, made it very easy to buy. Will shop here again.

Posted By Bjorn in January, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I am excited for my first order, search tools were a great help to find the sapphire I needed for my next project! Thank you

Posted By Sue in April, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

i love this site, the gems are always of good quality, i've been buy gifts from the site for 10 years, love it

Posted By Jf in January, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Great Job today! No issues!

Posted By Samlovesgems777 in August, 2023
Source: Bizrate

Overall Rating -> 9 star ratings

Easy to use. Limited supply of higher quality gemstones.

Posted By Newfguy in February, 2024
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.

1718

Continue Shopping
Checkout
Continue Shopping
Checkout