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Buy Round Shape 11 mm Gems

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Round Shape 11 mm Gems

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 Round shapes, facet cut and cabochon gems available now in 11 mm diameter 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 around 0.3 mm or slightly higher even. This small variance can usually be accommodated for 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 star ratings

It was good...... But I'm looking for Sardonyx.. Is it still out there?

Posted By Penelopep in January, 2022
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Overall Rating -> 9 star ratings

Good prices, Fast and Easy

Posted By Street in March, 2022
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Overall Rating -> 10 star ratings

I love this website.

Posted By Honeypups in March, 2022
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Overall Rating -> 10 star ratings

I couldn't believe how easy it was to find gems, see photos, scroll through until something caught my attention, and then choose it and pay for it. What a great site!

Posted By Wolohaye in September, 2021
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Overall Rating -> 10 star ratings

I am a first time buyer and the web page was very informative in helping me select a stone.

Posted By Judy in September, 2021
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Overall Rating -> 10 star ratings

I had problems with PayPal. My customer service rep, Thomas, did a great job in shepherding me through the process. I ended up purchasing three stones, due to Thomas good customer service. Thomas deserves a raise and a week's vacation.

Posted By WildWillie in April, 2022
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Overall Rating -> 10 star ratings

Great experience

Posted By NievesA4 in May, 2022
Source: Bizrate

Overall Rating -> 10 star ratings

I love collecting Gems and Gemselect is my go to place to get them. I have never been dissatisfied with any of my orders. I also love the information that they give for each gem.

Posted By Pierre de la Fontaine in July, 2021
Source: Bizrate

Overall Rating -> 7 star ratings

It would be nice if free shipping was offered for high dollar total orders, also the site could be easier to navigate if it was left to search all products at once instead of certain collections. Although very helpful adding a feature to make it easier to search all your inventory is better than hunting and weeding through multiple pages and links.

Posted By Snifferpippets in January, 2022
Source: Bizrate

Overall Rating -> 10 star ratings

I have been looking at the website for a few days, educating myself about Sapphires and other gems. I want to have earrings made as a gift for someone. I bought a air of gemstones for myself today. They look beautiful in the photo.

Posted By Ozwiena in October, 2021
Source: Bizrate

Overall Rating -> 10 star ratings

I’ve made several purchases from Gemselect over the past few years since I began making jewelry. I have been always pleased with the website and quality of stones and shipping. I will keep coming back to shop here.

Posted By Larry Keyser in November, 2021
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Overall Rating -> 7 star ratings

you offer the illusion of i can pay with my credit card but, but software wont accept payment unless i used pay pal.

Posted By Mycreditcard in January, 2022
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Overall Rating -> 9 star ratings

Love the bling!

Posted By Prime in April, 2022
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Overall Rating -> 8 star ratings

I am a collector of gems and rubys and this is an amazing site to keep what I have going on

Posted By Sgt Meds in January, 2022
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Overall Rating -> 10 star ratings

Good experience

Posted By Kathryn in September, 2021
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More Shapes
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  • Cushion Checkerboard (double sided)
  • Cushion Checkerboard (double sided) with Hole
  • Cushion Concave Fantasy Cut
  • Cushion Crystal Cluster
  • Cushion Mixed Cut
  • Cushion Rose-Cut
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  • Diamond-Cut
  • Drilled Faceted Sphere
  • Drilled Sphere
  • Drilled Square Rondelle
  • Drilled Square Rondelle Slice
  • Fancy Cabochon
  • Fancy Carved Cushion
  • Fancy Carved Oval
  • Fancy Carved Pear
  • Fancy Carved Trillion
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  • Fancy Fantasy Carving
  • Fancy-Cut
  • Fantasy Carved Flower
  • Fantasy Carved Flower Cut
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  • Half Heart Cabochon
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  • Half Moon Faceted
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  • Half-Drilled Heart Cabochon
  • Half-Drilled Heart Checkerboard Facet
  • Half-Drilled Heart Checkerboard (double sided
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  • Half-Drilled Sphere
  • Heart Buff-Top
  • Heart Cabochon
  • Heart Cabochon with Hole
  • Heart Checkerboard
  • Heart Checkerboard (double sided)
  • Heart Crystal Cluster
  • Heart Facet
  • Heart Rose-Cut
  • Hexagon Crystal Cluster
  • Hexagon Cut
  • Marquise Buff-Top
  • Marquise Cabochon
  • Marquise Checkerboard
  • Marquise Checkerboard (double sided)
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  • Marquise Crystal Cluster
  • Marquise Facet
  • Marquise Mixed Cut
  • Marquise Slice
  • Marquise Sugarloaf Cabochon
  • Octagon / Scissor Cut
  • Octagon Buff-Top
  • Octagon Cabochon
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  • Octagon Facet
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  • Octagon Step Cut
  • Oval Bar Cut
  • Oval Buff-Top
  • Oval Cabochon
  • Oval Cabochon with Hole
  • Oval Carved Cameo
  • Oval Checkerboard
  • Oval Checkerboard (double sided)
  • Oval Concave Cut
  • Oval Crystal Cluster
  • Oval Diamond-Cut
  • Oval Facet
  • Oval Fancy Facet
  • Oval Mixed Cut
  • Oval Portuguese-Cut
  • Oval Rose-Cut
  • Oval Rose-Cut (double sided)
  • Oval Slice
  • Pear Cabochon
  • Pear Checkerboard
  • Pear Checkerboard with Hole
  • Pear Concave Cut
  • Pear Crystal Cluster
  • Pear Double-Sided Checkerboard
  • Pear Facet
  • Pear Rose-Cut
  • Pear Shape Sugarloaf Cabochon
  • Pencil
  • Pencil Cut
  • Princess-Cut
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  • Rhomb Checkerboard
  • Rhomb Checkerboard (Double-Sided)
  • Rhomb Crystal Cluster
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  • Rondelle
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  • Square with Hole
  • Star Facet
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  • Teardrop Cabochon
  • Trapezoid
  • Trapezoid Cabochon
  • Triangle
  • Triangle Facet
  • Trillion Buff Top
  • Trillion Cabochon
  • Trillion Checkerboard
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  • Trillion Crystal Cluster
  • Trillion Facet
  • Trillion Rose-Cut
  • Trillion Shape Sugarloaf Cabochon
  • Undrilled Briolette Teardrop
Popular Gemstones
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All Gemstones (134)
A B C D E F G H I J K L M N O P Q R S T V Z
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart