Calibrated 18 x 13 mm Oval Shape Natural Loose Gemstones: GemSelect

Item Description
Stone Type:	Loose Malachite
Malachite Weight:	11.40 ct Malachite
Malachite Shape:	Oval Cabochon Malachite
Malachite Size:	17.9 x 13 mm Malachite
Malachite Color:	Green Malachite
Malachite Clarity:	Opaque Malachite
Malachite Origin:	Congo Malachite
Malachite Treatment:	Untreated
Malachite Quantity:	1
Malachite Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Malachite
Malachite Weight:	15.28 ct Malachite
Malachite Shape:	Oval Cabochon Malachite
Malachite Size:	18.2 x 13 mm Malachite
Malachite Color:	Dark Green Malachite
Malachite Clarity:	Opaque Malachite
Malachite Origin:	Congo Malachite
Malachite Treatment:	Untreated
Malachite Quantity:	1
Malachite Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Malachite
Malachite Weight:	15.05 ct Malachite
Malachite Shape:	Oval Cabochon Malachite
Malachite Size:	18.1 x 13 mm Malachite
Malachite Color:	Green Malachite
Malachite Clarity:	Opaque Malachite
Malachite Origin:	Congo Malachite
Malachite Treatment:	Untreated
Malachite Quantity:	2
Malachite Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Malachite
Malachite Weight:	15.62 ct Malachite
Malachite Shape:	Oval Cabochon Malachite
Malachite Size:	18 x 13.1 mm Malachite
Malachite Color:	Dark Green Malachite
Malachite Clarity:	Opaque Malachite
Malachite Origin:	Congo Malachite
Malachite Treatment:	Untreated
Malachite Quantity:	1
Malachite Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Malachite
Malachite Weight:	15.50 ct Malachite
Malachite Shape:	Oval Cabochon Malachite
Malachite Size:	18.4 x 13.1 mm Malachite
Malachite Color:	Dark Green Malachite
Malachite Clarity:	Opaque Malachite
Malachite Origin:	Congo Malachite
Malachite Treatment:	Untreated
Malachite Quantity:	1
Malachite Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Malachite
Malachite Weight:	16.14 ct Malachite
Malachite Shape:	Oval Cabochon Malachite
Malachite Size:	18.1 x 13.2 mm Malachite
Malachite Color:	Green Malachite
Malachite Clarity:	Opaque Malachite
Malachite Origin:	Congo Malachite
Malachite Treatment:	Untreated
Malachite Quantity:	2
Malachite Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Malachite
Malachite Weight:	14.90 ct Malachite
Malachite Shape:	Oval Cabochon Malachite
Malachite Size:	18.1 x 12.9 mm Malachite
Malachite Color:	Dark Green Malachite
Malachite Clarity:	Opaque Malachite
Malachite Origin:	Congo Malachite
Malachite Treatment:	Untreated
Malachite Quantity:	1
Malachite Certificate:	GemSelect
Product Description:

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 oval shapes, facet cut and cabochon gems available now in 18 x13 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

Gemstone Information

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 8

I did not realize how small the stone was. I cannot use it for the project I wanted, but I am keeping the stone and tru to use it in something else.

Posted By Mark in March, 2024

Source: Bizrate

Overall Rating -> 10

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

Posted By MJC in January, 2024

Source: Bizrate

Overall Rating -> 10

Great selection, I love your site! Great product visibility, information, etc.

Posted By John in February, 2024

Source: Bizrate

Overall Rating -> 10

Excellent site.

Posted By Boru in December, 2023

Source: Bizrate

Overall Rating -> 10

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

I love the clear description of the certification options. It's very rare to see a gem site that offers a deep explanation of each institution that would certify the stone(s).

Posted By Oakcityceo in May, 2023

Source: Bizrate

Overall Rating -> 10

It was easy to search and find what i wanted

Posted By Gunner in November, 2023

Source: Bizrate

Overall Rating -> 10

Purchased for my granddaughter she was very pleased with it.

Posted By Charlie in April, 2024

Source: Bizrate

Overall Rating -> 9

making my own jewelry for my birth stone

Posted By LoveGeo in July, 2023

Source: Bizrate

Overall Rating -> 10

The site was easy to shop and the payment was secure. I’m looking forward to receiving my order!

Posted By JAB93 in June, 2023

Source: Bizrate

Overall Rating -> 10

The website is well organized and works fast forward and back. Plenty of filters. Each gem is described in detail and you receive the one pictured. Gem material info and sources available. I would like to see more specifics on sources besides country- at least region or state and in the US with Turquiose which mine. Thanks!

Posted By Orchidisle in February, 2024

Source: Bizrate

Overall Rating -> 9

It was simple and clear to understand.

Posted By Thora007 in December, 2023

Source: Bizrate

Overall Rating -> 10

My first order. I am anxious to see if what I ordered is what I receive.

Posted By KRJ in July, 2023

Source: Bizrate

Overall Rating -> 10

Great selection of various gems, easy to navigate site

Posted By Josh in August, 2023

Source: Bizrate

Overall Rating -> 9

Good interaction with site

Posted By Brick in September, 2023

Source: Bizrate

Selected Gemstones

Gemstones A-Z

Buy Oval Shape 18x13 mm Gems

11.4 ct Oval Malachite, 17.9 x 13 mm From Congo

Natural Malachite, Qty: 1 pc | 11.40 carat weight Malachite

15.28 ct Loose Oval Malachite, 18.2 x 13 mm From Congo

Natural Malachite, Qty: 1 pc | 15.28 carat weight Malachite

30.1 ct Oval Malachite, 18.1 x 13 mm From Congo

Natural Malachite, Qty: 2 pcs | 30.10 carat weight Malachite

15.62 ct Loose Oval Malachite, 18 x 13.1 mm From Congo

Natural Malachite, Qty: 1 pc | 15.62 carat weight Malachite

15.5 ct Oval Malachite, 18.4 x 13.1 mm From Congo

Natural Malachite, Qty: 1 pc | 15.50 carat weight Malachite

32.27 ct Oval Malachite, 18.1 x 13.2 mm From Congo

Natural Malachite, Qty: 2 pcs | 32.27 carat weight Malachite

14.9 ct Oval Malachite, 18.1 x 12.9 mm From Congo

Natural Malachite, Qty: 1 pc | 14.90 carat weight Malachite

Gemstone Information

Gemstone SHOP

POLICIES

WHO ARE WE?

Gemstone EDUCATION

WE ARE LOCATED AT