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

    1-800-464-1640

    International:

    +66-39601289

  • Change Language
  • USD
  • CART
FREE SHIPPING

Buy Round Shape 6.5 mm Gems

(0)
Round Shape 6.5 mm Gems Weight Round Shape 6.5 mm Gems Size Round Shape 6.5 mm Gems Clarity Round Shape 6.5 mm Gems Price Round Shape 6.5 mm Gems Origin
More
Round Shape 6.5 mm Gems Single
Round Shape 6.5 mm Gems Pairs
Round Shape 6.5 mm Gems Lots
Round Shape 6.5 mm Gems Faceted
Round Shape 6.5 mm Gems Cabochons
Sort By:
Clear All
Exact Match not Available: Go Back
0.97 carat Yellow Citrine, Marquise Cut loose Citrine from Brazil, Natural Untreated Gem, 9.1 x 5 mm, Photo A

0.97 carat Yellow Citrine, Marquise Cut loose Citrine from Brazil, Natural Untreated Gem, 9.1 x 5 mm

Citrine

0.97ct1 pc
$ 7.76
9.1 x 5 mm
View Details
Add to Cart
31.65 ct Oval Checkerboard Labradorite, 25.3 x 18.2 mm From Madagascar, Photo A

31.65 ct Oval Checkerboard Labradorite, 25.3 x 18.2 mm From Madagascar

Labradorite

31.65ct total2 pcs
$ 63.30
25.3 x 18.2 mm
View Details
Add to Cart
0.63 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5.1 x 4 mm, Photo A

0.63 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5.1 x 4 mm

Tanzanite

0.63ct total2 pcs
$ 34.99
5.1 x 4 mm
View Details
Add to Cart
0.4 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 6 x 4.1 mm, Photo A

0.4 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 6 x 4.1 mm

Citrine

0.40ct1 pc
$ 2.80
6 x 4.1 mm
View Details
Add to Cart
1.42 carat Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 9.1 mm, Photo A

1.42 carat Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 9.1 mm

Pyrope Garnet

1.42ct1 pc
$ 17.07
9.1 x 3.4 mm
View Details
Add to Cart
0.56 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 6.1 x 6 mm, Photo A

0.56 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 6.1 x 6 mm

Morganite

0.56ct1 pc
$ 33.88
6.1 x 6 mm
View Details
Add to Cart
17.87 ct Trillion Obsidian, 24.8 x 20.1 mm From the United States, Photo A

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

Obsidian

17.87ct1 pc
$ 29.49
24.8 x 20.1 mm
View Details
Add to Cart
0.52 carat Purple Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 7.5 x 3.7 mm, Photo A

0.52 carat Purple Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 7.5 x 3.7 mm

Sapphire

0.52ct1 pc
$ 45.76
7.5 x 3.7 mm
View Details
Add to Cart
12.15 ct Round Cut Color-Change Fluorite, 13.9 mm From Brazil, Photo A

12.15 ct Round Cut Color-Change Fluorite, 13.9 mm From Brazil

Color-Change Fluorite

12.15ct1 pc
$ 335.19
13.9 mm
View Details
Add to Cart
2.46 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.3 x 7.3 mm, Photo A

2.46 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.3 x 7.3 mm

Hessonite Garnet

2.46ct1 pc
$ 46.00
7.3 x 7.3 mm
View Details
Add to Cart
0.92 carat Pear Shape Color-Change Diaspore, loose Certified Color-Change Diaspore from Turkey, Natural Untreated Gem, 7.8 x 4.8 mm, Photo A

0.92 carat Pear Shape Color-Change Diaspore, loose Certified Color-Change Diaspore from Turkey, Natural Untreated Gem, 7.8 x 4.8 mm

Color-Change Diaspore

0.92ct1 pc
$ 44.22
7.8 x 4.8 mm
View Details
Add to Cart
31.86 ct Loose Oval Bloodstone, 35.7 x 22.8 mm From Madagascar, Photo A

31.86 ct Loose Oval Bloodstone, 35.7 x 22.8 mm From Madagascar

Bloodstone

31.86ct1 pc
$ 14.34
35.7 x 22.8 mm
View Details
Add to Cart
20.95 ct Rainbow Pyrite, 24.9 x 19.5 mm From Russia, Photo A

20.95 ct Rainbow Pyrite, 24.9 x 19.5 mm From Russia

Rainbow Pyrite

20.95ct1 pc
$ 54.47
24.9 x 19.5 mm
View Details
Add to Cart
1.6 ct Yellow Beryl, 9.1 x 6.6 mm Oval Cut From Madagascar, Photo A

1.6 ct Yellow Beryl, 9.1 x 6.6 mm Oval Cut From Madagascar

Beryl

1.60ct1 pc
$ 32.00
9.1 x 6.6 mm
View Details
Add to Cart
1.72 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5.1 mm, Photo A

1.72 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5.1 mm

Topaz

1.72ct total2 pcs
$ 12.20
7 x 5.1 mm
View Details
Add to Cart
4.58 carat Carved Flower Ruby, loose Certified Ruby from Madagascar, Natural Gem, 11.7 x 9 mm, Photo A

4.58 carat Carved Flower Ruby, loose Certified Ruby from Madagascar, Natural Gem, 11.7 x 9 mm

Ruby

4.58ct1 pc
$ 91.60
11.7 x 9 mm
View Details
Add to Cart
1.39 ct Purple Spinel, 6.6 x 5.8 mm Cushion Cut From Tanzania, Photo A

1.39 ct Purple Spinel, 6.6 x 5.8 mm Cushion Cut From Tanzania

Spinel

1.39ct1 pc
$ 99.39
6.6 x 5.8 mm
View Details
Add to Cart
0.86 carat Pink Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 5.9 mm, Photo A

0.86 carat Pink Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 5.9 mm

Tourmaline

0.86ct1 pc
$ 14.80
5.9 mm
View Details
Add to Cart
1.45 carat Blue Kyanite, Round loose Kyanite from Nepal, Natural Untreated Gems, 5.1 mm, Photo A

1.45 carat Blue Kyanite, Round loose Kyanite from Nepal, Natural Untreated Gems, 5.1 mm

Kyanite

1.45ct total2 pcs
$ 36.25
5.1 mm
View Details
Add to Cart
1.42 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 4.5 x 3.7 mm, Photo A

1.42 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 4.5 x 3.7 mm

Demantoid Garnet

1.42ct total4 pcs
$ 156.20
4.5 x 3.7 mm
View Details
Add to Cart
1.02 carat Oval Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gem, 7.1 x 5.1 mm, Photo A

1.02 carat Oval Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gem, 7.1 x 5.1 mm

Rhodolite Garnet

1.02ct1 pc
$ 21.56
7.1 x 5.1 mm
View Details
Add to Cart
0.5 ct Loose Purple Sapphire, 5.6 x 4.4 mm Oval Cut From Tanzania, Photo A

0.5 ct Loose Purple Sapphire, 5.6 x 4.4 mm Oval Cut From Tanzania

Sapphire

0.50ct1 pc
$ 66.00
5.6 x 4.4 mm
View Details
Add to Cart
3.4 ct Round Checkerboard Smoky Quartz, 7.9 mm From Brazil, Photo A

3.4 ct Round Checkerboard Smoky Quartz, 7.9 mm From Brazil

Smoky Quartz

3.40ct total2 pcs
$ 6.80
7.9 mm
View Details
Add to Cart
22.43 ct Oval Rose Quartz, 18.9 x 16.4 mm From South Africa, Photo A

22.43 ct Oval Rose Quartz, 18.9 x 16.4 mm From South Africa

Rose Quartz

22.43ct1 pc
$ 32.08
18.9 x 16.4 mm
View Details
Add to Cart
7.59 ct Marquise Slice Ruby in Fuchsite, 17.2 x 8.9 mm From Ethiopia, Photo A

7.59 ct Marquise Slice Ruby in Fuchsite, 17.2 x 8.9 mm From Ethiopia

Ruby in Fuchsite

7.59ct total2 pcs
$ 56.28
17.2 x 8.9 mm
View Details
Add to Cart
1.04 carat Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 7.2 x 5.2 mm, Photo A

1.04 carat Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 7.2 x 5.2 mm

Topaz

1.04ct1 pc
$ 11.97
7.2 x 5.2 mm
View Details
Add to Cart
1.9 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 9.1 x 7.1 mm, Photo A

1.9 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 9.1 x 7.1 mm

Citrine

1.90ct1 pc
$ 10.45
9.1 x 7.1 mm
View Details
Add to Cart
0.82 carat Green Sapphire, Trillion-Cut loose Sapphire from Madagascar, Natural Gem, 6.1 x 5.9 mm, Photo A

0.82 carat Green Sapphire, Trillion-Cut loose Sapphire from Madagascar, Natural Gem, 6.1 x 5.9 mm

Sapphire

0.82ct1 pc
$ 65.60
6.1 x 5.9 mm
View Details
Add to Cart
3.42 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 13.1 x 7.2 mm, Photo A

3.42 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 13.1 x 7.2 mm

Citrine

3.42ct1 pc
$ 26.33
13.1 x 7.2 mm
View Details
Add to Cart
4.77 carat Blue Sapphire, Oval loose Sapphire from Sri Lanka, Natural Gem, 10 x 8.8 mm, Photo A
Click for Product Video (439672)

4.77 carat Blue Sapphire, Oval loose Sapphire from Sri Lanka, Natural Gem, 10 x 8.8 mm

Sapphire

4.77ct1 pc
$ 11,448.00
10 x 8.8 mm
View Details
Add to Cart
1.64 carat Blue Sapphire, Briolette with Hole loose Sapphire from Madagascar, Natural Gems, 4.7 mm, Photo A

1.64 carat Blue Sapphire, Briolette with Hole loose Sapphire from Madagascar, Natural Gems, 4.7 mm

Sapphire

1.64ct total4 pcs
$ 54.12
4.7 x 3 mm
View Details
Add to Cart
12.63 carat Pear Rutile Quartz, loose Certified Rutile Quartz from India, Natural Untreated Gem, 21.6 x 10.9 mm, Photo A

12.63 carat Pear Rutile Quartz, loose Certified Rutile Quartz from India, Natural Untreated Gem, 21.6 x 10.9 mm

Rutile Quartz

12.63ct1 pc
$ 48.63
21.6 x 10.9 mm
View Details
Add to Cart
Photos are of Actual Products for Sale

Some people buy 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 6.5 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 even slightly higher. 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.

Read All

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

I love GemSelect, photos and details are great.

Posted By #1 in February, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

The gems were as described, which is kind of rare these days. I am happy with the purchase, and delevery on time.

Posted By T-bone in October, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

I FOUND WHAT I WANT IT

Posted By GABY in March, 2024
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

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 star ratings

I have used Gem Select many times over the past 10 years and have always been happy with the product & services

Posted By Ordain in August, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

The website is very easy to use. The search function, filter and sort functions are very helpful.

Posted By Sboro in August, 2023
Source: Bizrate

Overall Rating -> 7 star ratings

I feel pretty good so far, pending the delivery of the item ordered.

Posted By Steve in November, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

My last experience was good, in fact every experience I have had with them has met my expectations or surpassed them. These are really good people to work with.

Posted By Spinach in May, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

was just windowshopping and spotted a couple "Very Uncommons", a tsavorite & a demantoid garnet that were both in a size I was looking for, & that I could very easily pay for -- so figured I would grab the tsavo ASAP and got the demantoid to accompany so they wouldn't be lonely.

Posted By Kittypie070 in April, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent site.

Posted By Boru in December, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

The website is easy to search, the variety of gems is excellent and the educational information is interesting and helpful! Love browsing and shopping the GemSelect website!

Posted By Happiness in January, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent experience!

Posted By Steph in April, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

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

Posted By MJC in January, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

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
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.

237

Continue Shopping
Checkout
Continue Shopping
Checkout