X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

Buy Oval Shape 20x15 mm Gems

Oval Shape 20x15 mm Gems Weight
Oval Shape 20x15 mm Gems Size
Oval Shape 20x15 mm Gems Clarity
Oval Shape 20x15 mm Gems Price

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color Oval Shape 20x15 mm Gems
Black Oval Shape 20x15 mm Gems
Blue Oval Shape 20x15 mm Gems
Brown Oval Shape 20x15 mm Gems
Golden
Gray Oval Shape 20x15 mm Gems
Green Oval Shape 20x15 mm Gems
Multicolor Oval Shape 20x15 mm Gems
Orange Oval Shape 20x15 mm Gems
Pink Oval Shape 20x15 mm Gems
Purple
Red Oval Shape 20x15 mm Gems
Turquoise Oval Shape 20x15 mm Gems
Violet Oval Shape 20x15 mm Gems
White Oval Shape 20x15 mm Gems
Yellow Oval Shape 20x15 mm Gems
Single
Pairs
Lots
Faceted
Cabochons
Clear All
  • Actual Product Photos
  • Reliable Quality
  • Full Transparency
  • Large Selection
  • Affordable Prices
  • Fast, Secure Global Shipping
ID: 472285
Weight: 17.53ct
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 134.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 673889
Weight: 14.16ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 203.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 706629
Weight: 30.58ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 914.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 480114
Weight: 23.32ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 229.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 659623
Weight: 24.72ct
Size: 20 x 15 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 29.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 476889
Weight: 23.72ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Price: $ 233.26
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 391832
Weight: 24.78ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 65.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 480108
Weight: 21.97ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS-VS
Price: $ 196.42
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 514058
Weight: 13.95ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 18.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 370438
Weight: 15.30ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 30.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 552612
Weight: 10.40ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 24.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 687131
Weight: 14.58ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 17.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 686112
Weight: 13.39ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 16.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 723739
Weight: 33.69ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 40.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 365615
Weight: 15.55ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 30.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 476876
Weight: 30.58ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 121.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 365616
Weight: 12.13ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 24.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 630312
Weight: 20.28ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 107.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 480211
Weight: 22.83ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS-VS
Price: $ 224.51
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 673661
Weight: 14.77ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 194.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 686611
Weight: 14.73ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 17.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 477020
Weight: 21.61ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Price: $ 212.51
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 709313
Weight: 20.88ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 75.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 370374
Weight: 26.60ct (total)
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 42.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 384642
Weight: 9.95ct
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 35.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 516461
Weight: 18.05ct
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 18.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 630780
Weight: 17.50ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 92.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 401358
Weight: 18.19ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 32.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 392108
Weight: 23.53ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 62.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 736679
Weight: 10.08ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 14.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 415303
Weight: 21.58ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Price: $ 199.40
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 405979
Weight: 23.91ct
Size: 20 x 15 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 37.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 328753
Weight: 24.14ct
Size: 20 x 15 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 38.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 717338
Weight: 25.23ct
Size: 20 x 15 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 908.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 476967
Weight: 22.32ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS-VS
Price: $ 219.49
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 673931
Weight: 17.89ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 278.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 550846
Weight: 12.65ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 19.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 492274
Weight: 9.51ct
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 35.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 384643
Weight: 12.63ct
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 33.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 370446
Weight: 14.70ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 29.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 619130
Weight: 18.25ct (total)
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 48.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 450886
Weight: 22.01ct
Size: 20 x 15 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 39.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 669631
Weight: 14.58ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 43.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 415371
Weight: 22.72ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS-VS
Price: $ 209.93
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 616821
Weight: 24.69ct
Size: 20 x 15 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 228.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 365833
Weight: 26.88ct (total)
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 53.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 736681
Weight: 12.03ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 16.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 359599
Weight: 23.52ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 62.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 370458
Weight: 18.17ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 35.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 492424
Weight: 11.71ct
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 44.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 618774
Weight: 21.64ct (total)
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 51.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 392009
Weight: 48.91ct (total)
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 117.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 417293
Weight: 15.00ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 39.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 415373
Weight: 23.33ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Price: $ 215.57
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 687122
Weight: 14.47ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 17.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 359598
Weight: 23.67ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 62.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 480116
Weight: 21.58ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS-VS
Price: $ 212.22
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 645538
Weight: 13.73ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 67.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 721889
Weight: 24.16ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 28.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 714806
Weight: 28.06ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 303.05
Item in Stock
More Options & Item Details
Add to Cart
1 - 5

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

I like the site, it's easy to navigate. There are sometimes items I'm looking for that aren't there, but mostly I can find what I need.

Posted By Nate in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love browsing the site and everything is easy to find. There is just so much I get lost for hours. Sometimes I wish there were videos of some gems, but other than that I love shopping with GemSelect and I have referred the site to many people many times. I work in the jewelry industry myself and I love to show off what Ive had made with my gems from GemSelect! Thank you

Posted By Antennaesglow in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to conduct search, good amount of stock to select from along with variety of prices.

Posted By Que in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mmThanks

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 2025
Source: Bizrate

Overall Rating -> 7 star ratings

Excited to see

Posted By Ss in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones..

Posted By Steven M. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was very good and concise.

Posted By Whydothey in August, 2024
Source: Bizrate

Some people by gems by color or pricze, 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 20 x 15 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

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

I like the site, it's easy to navigate. There are sometimes items I'm looking for that aren't there, but mostly I can find what I need.

Posted By Nate in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love browsing the site and everything is easy to find. There is just so much I get lost for hours. Sometimes I wish there were videos of some gems, but other than that I love shopping with GemSelect and I have referred the site to many people many times. I work in the jewelry industry myself and I love to show off what Ive had made with my gems from GemSelect! Thank you

Posted By Antennaesglow in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to conduct search, good amount of stock to select from along with variety of prices.

Posted By Que in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mmThanks

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 2025
Source: Bizrate

Overall Rating -> 7 star ratings

Excited to see

Posted By Ss in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones..

Posted By Steven M. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was very good and concise.

Posted By Whydothey in August, 2024
Source: Bizrate
Enlarged Gemstone Image