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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (71): Rhombus Shape Gems Clear All
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34ct Rhomb Facet Bi-color Ametrine Gem (ID: 439469)
33.96 ct Ametrine
19.1 x 16.5 mm
$ 203.76
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15.5ct Rhomb Cabochon Multicolor Jasper Gem (ID: 391163)
15.49 ct Jasper
34.5 x 17.4 mm
$ 23.24
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13.1ct Rhomb Cabochon Multicolor Jasper Gem (ID: 395358)
13.05 ct (total 26.10ctw) Jasper
32.7 x 18.2 mm
$ 39.15
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42ct Rhomb Cabochon Multicolor Green Malachite Gem (ID: 484009)
41.95 ct Malachite
31.9 x 29.3 mm
$ 41.95
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16.3ct Rhomb Cabochon Multicolor Spectrolite Gem (ID: 482549)
16.28 ct Spectrolite
27.9 x 17.7 mm
$ 32.07
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9.2ct Rhomb Cabochon Multicolor Jasper Gem (ID: 391165)
9.16 ct (total 18.32ctw) Jasper
26 x 14.9 mm
$ 27.48
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13.8ct Rhomb Cabochon Multicolor Jasper Gem (ID: 391166)
13.84 ct (total 27.68ctw) Jasper
34 x 16.7 mm
$ 41.52
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20.7ct Rhomb Cabochon Multicolor Jasper Gem (ID: 391179)
20.73 ct (total 41.46ctw) Jasper
37.1 x 19 mm
$ 62.19
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8.7ct Rhomb Cabochon Multicolor Chrysocolla Gem (ID: 503174)
8.73 ct (total 17.45ctw) Chrysocolla
24.2 x 13.1 mm
$ 16.75
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4.9ct Rhomb Facet Bi-Color Ametrine Gem (ID: 442271)
4.90 ct Ametrine
15.6 x 11.5 mm
$ 24.50
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6.9ct Rhomb Facet Greenish Golden Apatite Gem (ID: 385922)
6.89 ct Apatite
18.8 x 12.2 mm
$ 332.10
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8.3ct Rhomb Cabochon Green Seraphinite Gem (ID: 502093)
8.29 ct Seraphinite
25.8 x 13.1 mm
$ 4.15
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20.3ct Rhomb Cabochon Multicolor Ammolite Gem (ID: 375965)
20.34 ct Ammolite
19.6 x 19.4 mm
$ 203.40
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18.8ct Rhomb Cabochon Multicolor Jasper Gem (ID: 406161)
18.76 ct (total 37.52ctw) Jasper
35.2 x 18.5 mm
$ 37.52
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9.5ct Rhomb Cabochon Green Seraphinite Gem (ID: 502084)
9.53 ct (total 19.06ctw) Seraphinite
25.3 x 13.3 mm
$ 9.53
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1.3ct Rhomb Facet Swiss Blue Topaz Gem (ID: 436984)
1.29 ct (total 2.57ctw) Topaz
8.7 x 7 mm
$ 12.85
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11.8ct Rhomb Cabochon Multicolor Jasper Gem (ID: 399633)
11.75 ct Jasper
28.6 x 13.5 mm
$ 17.04
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18.2ct Rhomb Cabochon Multicolor Jasper Gem (ID: 391168)
18.23 ct (total 36.45ctw) Jasper
31.1 x 19.3 mm
$ 54.68
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18.2ct Rhomb Cabochon Multicolor Jasper Gem (ID: 391172)
18.15 ct (total 36.29ctw) Jasper
37.4 x 17 mm
$ 54.44
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19.3ct Rhomb Cabochon Multicolor Jasper Gem (ID: 391170)
19.31 ct (total 38.62ctw) Jasper
35.4 x 20.7 mm
$ 57.93
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24.3ct Rhomb Cabochon Multicolor Jasper Gem (ID: 476892)
24.28 ct (total 48.56ctw) Jasper
38 x 20.4 mm
$ 62.16
Item in Stock
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Rhombus Shape Gems
Choose from thousands of single stones, as well as matched pairs and parcel lots of faceted and cabochon rhombus shape gemstones. Rhombus Shape Blue Topaz, Amethyst, Citrine, Sapphire, Tourmaline and more. We have the largest selection of fancy shape faceted and cabochon gems available. Best of all, we carry only natural gems for your jewelry or gemstone collection at GemSelect.
Certified Customer Reviews
Overall Rating -> 10 star ratings
Colors and qualities of gems are very well represented online. Easy to use website. Great selections!
Posted By in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
This was my second purchase from GemSelect and definitely won’t be my last! They have a very wide variety of gems and you can always find what you are looking for with ease and the prices are very good.
Posted By Jill in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Loved the wide selection of product
Posted By Miki in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
finally bought the last rock to complete my ring idea; needed another white one after giving the big diamond to my daughter. a diamond that size is out of my retired-school-teacher budget, so i bought a white zircon. went back to the same place that i got my loose sapphire-- great selection, good prices, good delivery!
Posted By Ptcmom in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I'm always real pleased with this website, I don't think there is much you could do to make it any better. I wish the shipping charges were lower, but it is understandable.
Posted By Spinch13 in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
This is a site that sources valuable and genuine stones forms around the world, with and honest and descriptive sections, as well as specs, and the option to have the gemstone collection one might purchased—certified! Price ranges vary, but are always affordable and always worth it, whether it’s a gift, or for a personal business.
Posted By Bradley in November, 2018
Source: Bizrate
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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