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Buy 16 - 18 mm Ruby Gems

(50)
16 - 18 mm Ruby Gems Weight 16 - 18 mm Ruby Gems Size 16 - 18 mm Ruby Gems Clarity 16 - 18 mm Ruby Gems Price 16 - 18 mm Ruby Gems Origin
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16 - 18 mm Ruby Gems Single
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Photos are of Actual Products for Sale
18.07ct1 Piece
$ 1,445.60
16.3 x 13.5 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 18.07 ct Ruby
Ruby Shape: Oval Facet Ruby
Ruby Size: 16.3 x 13.5 mm Ruby
Ruby Color: Wine Red Ruby
Ruby Clarity: VVS-VS Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
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3.38ct1 Piece
$ 67.60
16 x 8.2 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 3.38 ct Ruby
Ruby Shape: Carved Leaf Ruby
Ruby Size: 16 x 8.2 mm Ruby
Ruby Color: Deep Red Ruby
Ruby Clarity: Opaque Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Heated
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
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7.50ct1 Piece
$ 150.00
17.8 x 10.7 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 7.50 ct Ruby
Ruby Shape: Carved Leaf Ruby
Ruby Size: 17.8 x 10.7 mm Ruby
Ruby Color: Dark Red Ruby
Ruby Clarity: Opaque Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Heated
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
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3.39ct1 Piece
$ 67.80
16.2 x 9.9 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 3.39 ct Ruby
Ruby Shape: Carved Leaf Ruby
Ruby Size: 16.2 x 9.9 mm Ruby
Ruby Color: Medium Dark-Purple Ruby
Ruby Clarity: Opaque Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Heated
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
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2.74ct1 Piece
$ 54.80
17.8 x 10 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 2.74 ct Ruby
Ruby Shape: Carved Leaf Ruby
Ruby Size: 17.8 x 10 mm Ruby
Ruby Color: Medium Dark-Purple Ruby
Ruby Clarity: Opaque Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Heated
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
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5.10ct1 Piece
$ 102.00
16 x 10.4 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 5.10 ct Ruby
Ruby Shape: Carved Leaf Ruby
Ruby Size: 16 x 10.4 mm Ruby
Ruby Color: Reddish Purple Ruby
Ruby Clarity: Opaque Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Heated
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
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13.78ct1 Piece
$ 275.60
17.8 x 17.1 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 13.78 ct Ruby
Ruby Shape: Carved Flower Ruby
Ruby Size: 17.8 x 17.1 mm Ruby
Ruby Color: Medium Purple Ruby
Ruby Clarity: Opaque Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Heated
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
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2.93ct1 Piece
$ 58.60
16.3 x 11.5 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 2.93 ct Ruby
Ruby Shape: Carved Leaf Ruby
Ruby Size: 16.3 x 11.5 mm Ruby
Ruby Color: Medium Dark-Purple Ruby
Ruby Clarity: Opaque Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Heated
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
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4.07ct1 Piece
$ 81.40
16 x 9.9 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 4.07 ct Ruby
Ruby Shape: Carved Leaf Ruby
Ruby Size: 16 x 9.9 mm Ruby
Ruby Color: Medium Purple Ruby
Ruby Clarity: Opaque Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Heated
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
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3.23ct1 Piece
$ 64.60
17.3 x 8.9 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 3.23 ct Ruby
Ruby Shape: Carved Leaf Ruby
Ruby Size: 17.3 x 8.9 mm Ruby
Ruby Color: Sangria Purple Ruby
Ruby Clarity: Opaque Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Heated
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
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3.49ct1 Piece
$ 69.80
17.4 x 10.3 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 3.49 ct Ruby
Ruby Shape: Carved Leaf Ruby
Ruby Size: 17.4 x 10.3 mm Ruby
Ruby Color: Sangria Purple Ruby
Ruby Clarity: Opaque Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Heated
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
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2.26ct1 Piece
$ 45.20
17.6 x 8.5 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 2.26 ct Ruby
Ruby Shape: Carved Leaf Ruby
Ruby Size: 17.6 x 8.5 mm Ruby
Ruby Color: Bright Grape Ruby
Ruby Clarity: Opaque Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Heated
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
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22.73ct1 Piece
$ 590.98
17 x 13.6 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 22.73 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 17 x 13.6 mm Ruby
Ruby Color: Deep Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
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15.91ct1 Piece
$ 413.66
16.4 x 13.9 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 15.91 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 16.4 x 13.9 mm Ruby
Ruby Color: Deep Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
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13.94ct1 Piece
$ 362.44
16.1 x 12 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 13.94 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 16.1 x 12 mm Ruby
Ruby Color: Dark Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
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27.79ct1 Piece
$ 722.54
17.8 x 15 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 27.79 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 17.8 x 15 mm Ruby
Ruby Color: Deep Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
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18.30ct1 Piece
$ 475.80
16.2 x 12.2 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 18.30 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 16.2 x 12.2 mm Ruby
Ruby Color: Deep Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
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17.16ct1 Piece
$ 446.16
16.2 x 11.7 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 17.16 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 16.2 x 11.7 mm Ruby
Ruby Color: Dark Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
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19.84ct1 Piece
$ 515.84
16.3 x 13.9 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 19.84 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 16.3 x 13.9 mm Ruby
Ruby Color: Wine Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.52ct1 Piece
$ 462.53
17.5 x 14.2 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 17.52 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 17.5 x 14.2 mm Ruby
Ruby Color: Deep Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
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19.48ct1 Piece
$ 506.48
16.8 x 12.6 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 19.48 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 16.8 x 12.6 mm Ruby
Ruby Color: Deep Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
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15.15ct1 Piece
$ 393.90
16.7 x 13.7 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 15.15 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 16.7 x 13.7 mm Ruby
Ruby Color: Deep Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
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22.96ct1 Piece
$ 596.96
17.8 x 14.8 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 22.96 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 17.8 x 14.8 mm Ruby
Ruby Color: Dark Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
Add to Cart
18.86ct1 Piece
$ 490.36
16.9 x 13.2 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 18.86 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 16.9 x 13.2 mm Ruby
Ruby Color: Deep Wine Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
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19.19ct1 Piece
$ 498.94
17 x 14.6 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 19.19 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 17 x 14.6 mm Ruby
Ruby Color: Deep Wine Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
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17.39ct1 Piece
$ 459.10
16.6 x 14.5 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 17.39 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 16.6 x 14.5 mm Ruby
Ruby Color: Dark Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
Add to Cart
17.33ct1 Piece
$ 450.58
17.7 x 13.2 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 17.33 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 17.7 x 13.2 mm Ruby
Ruby Color: Dark Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
Add to Cart
20.43ct1 Piece
$ 539.35
16.5 x 14 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 20.43 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 16.5 x 14 mm Ruby
Ruby Color: Deep Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
Add to Cart
16.57ct1 Piece
$ 397.68
16.5 x 14.1 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 16.57 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 16.5 x 14.1 mm Ruby
Ruby Color: Bright Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
Add to Cart
15.20ct1 Piece
$ 401.28
16.8 x 14.2 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 15.20 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 16.8 x 14.2 mm Ruby
Ruby Color: Dark Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
Add to Cart
27.86ct1 Piece
$ 724.36
17.8 x 15.2 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 27.86 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 17.8 x 15.2 mm Ruby
Ruby Color: Deep Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
Add to Cart
19.95ct1 Piece
$ 526.68
16.4 x 14.1 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 19.95 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 16.4 x 14.1 mm Ruby
Ruby Color: Blood Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
Add to Cart
23.52ct1 Piece
$ 620.93
17.2 x 14.3 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 23.52 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 17.2 x 14.3 mm Ruby
Ruby Color: Deep Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
Add to Cart
23.10ct1 Piece
$ 609.84
17.8 x 15 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 23.10 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 17.8 x 15 mm Ruby
Ruby Color: Dark Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
Add to Cart
15.39ct1 Piece
$ 369.36
17 x 14.2 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 15.39 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 17 x 14.2 mm Ruby
Ruby Color: Deep Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
Add to Cart
16.63ct1 Piece
$ 439.03
16.2 x 13.9 mm
Item Description
Stone Type: Loose Ruby
Ruby Weight: 16.63 ct Ruby
Ruby Shape: Oval Cabochon Ruby
Ruby Size: 16.2 x 13.9 mm Ruby
Ruby Color: Deep Wine Red Ruby
Ruby Clarity: Translucent Ruby
Ruby Origin: Madagascar Ruby
Ruby Treatment: Fracture Filled
Ruby Quantity: 1
Ruby Certificate: GemSelect
Product Description:
View Details
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Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

The gem stone always has a great selection of beautiful stones. The calibrated stone fit my ring perfectly. Thank you gem select !

Posted By Jen in August, 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

Very easy. I have purchased a few times before and was satisfied each time. Thank you.

Posted By Ray in December, 2023
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’ve enjoyed purchasing stones from this site. It’s convenient and fairly priced.

Posted By Chico in May, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Convenient selection, arrival on time

Posted By Alin in February, 2024
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

Easy to navigate

Posted By G Funk in December, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Purchasing from Gem Select was a pleasant and easy experience. The photos of the stones I was interested in were an accurate depiction of the stones I received. Ordering was easy and the items arrived within a week. Over all it was a very positive experience.

Posted By Dee in September, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Everything fine.

Posted By Hilario in December, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Had a problem ordering first time. Someone from Gem Select reached out to me and cleared problem and I made purchase.

Posted By Myrtle in February, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I found it to be easy to browse and easy to use

Posted By Kyle in December, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Extremely easy to use, and I am fully satisfied with the purchase process.

Posted By Fl_Beachcomber in October, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

it was good

Posted By Bobk in January, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Perfect size I was looking for and great price

Posted By Izzy in September, 2023
Source: Bizrate
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