Marquise Shape 7 x 3.5 mm calibrated natural loose gems from GemSelect

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 marquise shaped facet cut gems, gemstone carvings and cabochons available in 7 mm x 3.50 mm sizes. For the largest selection of colored gemstones, Shop GemSelect Online.

As a general guideline, when it comes to calibrated gems, they are not usually expected to be cut to exact measurements and specifications. But rather, they're cut with slight variance in size, though the close approximatation in size is not clearly defined, there are general guidelines for what is considered acceptable. Obviously larger and heavy carat weight stones allow more room in size for variance, while smaller stones may leave little to none. This means a large 30mm calibrated gemstone, could actually be closer to 31 millimeters. For this reason, we recommend to always view the exact size in addition to the calibrated size details. The exact size will inform you of the variance you can expect. Some setting styles are more flexible with variance, such as prong settings, while other styles of mountings may need almost an exact size to the fraction of millimeter.

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.

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Overall Rating -> 10

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

Posted By MAGSMX in August, 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 -> 10

Wonderful selection of gems to choose from. Have made many purchases and was only slightly disappointed once.

Posted By Teemo in February, 2024

Source: Bizrate

Overall Rating -> 8

Found on a search engine. Scanned inventory and made a small purchase.

Posted By Ralli in August, 2023

Source: Bizrate

Overall Rating -> 9

Good interaction with site

Posted By Brick in September, 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 -> 10

Everthing about researching and ordering from Gemselect was easy and uncomplicated. In the past I had payment problems, but your customer rep, Thomas, helped me get everything right. I will continue using Gemselet in the future for these reasons.

Posted By WildwillyfromArizona in August, 2023

Source: Bizrate

Overall Rating -> 10

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

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

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

The website is user friendly, has excellent selection. I've always found what I was looking for with Gem Select. When others don't have it they do. And most important, they have a way for you to pay without using PayPal. I cannot use PayPal they closed my account because of no cell phone.

Posted By NJD in September, 2023

Source: Bizrate

Overall Rating -> 8

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

Excellent experience!

Posted By Steph in April, 2023

Source: Bizrate

Overall Rating -> 10

It was easy to navigate and I hope that the gem is as nice as the picture

Posted By 1 in April, 2024

Source: Bizrate

Gemstones A-Z

Buy Marquise Shape 7x3.5 mm Gems

6.16 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 14.1 x 10 mm

1.16 ct Oval Cut Strawberry Quartz, 8.1 x 6 mm From Russia

2.25 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 9.1 x 9 mm

1.1 carat Oval Ruby, loose Certified Ruby from Myanmar, Natural Gem, 7.1 x 5.1 mm

5.38 ct Orange Sunstone, 10.1 x 8.1 mm Oval Cut From India

19.12 ct Oval Tiger's Eye, 21.9 x 16.1 mm From Thailand

0.79 carat London Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7.1 x 5.1 mm

138.23 carat London Blue Topaz, Oval Portuguese-Cut loose Topaz from Brazil, Natural Gem, 36.2 x 24.4 mm

16.67 ct Gray Jadeite, 22.3 x 17.5 mm Oval Cut From Myanmar

5.39 ct Oval Strawberry Quartz, 13.5 x 9.7 mm From Russia

0.91 ct Pink Morganite, 7.3 x 5.3 mm Oval Cut From Afghanistan

1.44 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 16.2 x 3.9 mm

0.1 ct Black Diamond, 2.1 x 2 mm Princess Cut From India

10.1 ct Asscher Cut Rose Quartz, 10.8 x 10.6 mm From South Africa

18.15 ct Cushion Tiger's Eye, 14 x 11.8 mm From Thailand

1.03 ct Round Onyx, 5.5 mm From Sri Lanka

0.96 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 9.1 x 6.9 mm

41.18 ct Odd Shaped Rainbow Pyrite, 37.2 x 23.7 mm From Russia

14.2 carat Pear Obsidian, loose Certified Obsidian from Mexico, Natural Untreated Gem, 21 x 17.3 mm

2.17 carat Blue Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 4.4 mm

0.45 carat Emerald Cut Emerald, loose Certified Emerald from Colombia, Natural Gem, 4.3 x 4.2 mm

6.76 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 11.1 x 9 mm

3.61 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 12.1 x 10.1 mm

0.48 ct Loose Yellow Sapphire, 4.8 x 4.7 mm Heart Cut From Tanzania

9.74 ct White Quartz, 13.3 x 13.2 mm Asscher Cut From Brazil

3.14 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5 mm

6.87 ct Oval Star Ruby, 12.4 x 9.9 mm From Madagascar

12.45 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15 x 14.9 mm

3.19 ct Oval Cut Fire Opal, 11.6 x 9.3 mm From Mexico

1.36 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 8.8 x 7 mm

5.73 carat White Topaz, Oval loose Topaz from Brazil, Natural Untreated Gem, 12.2 x 10.1 mm

33.84 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 22.5 x 18.4 mm

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