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Colorado Aquamarine Gemstones for Sale
Colorado Aquamarine
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  Aquamarine from Mt. Antero. Mt. Antero aquamarine rough is rare and difficult for us to obtain on any consistent basis. Mt. Antero is the 10th highest peak in Colorado (14, 269 ft.) & the highest known gem producing area in the USA. Virtually all gems and crystals occur above 11,500 ft. Aquamarine is considered the March birthstone.
sold Aquamarine, 7.06 ct pulsar cut.
Very rare over 5 carats in good color and relatively clean, this gem is medium-dark blue. One of the best Antero aquamarines we've ever had in 40 years of business and collecting! It measures 9.7 x 12.4 mm, and American cut into a fancy pulsar cut. The pulsar cut maintains the emerald cut outline while giving much more flash. Fits in most standard emerald cut heads. If you want a one-of-a-kind piece from Mt. Antero, this one is it!
$1,765.00 (Stock #AQBP-0706)
Aquamarine, 4.15 ct Portuguese style cushion. 7.8x13.6 mm.
Has the typical Mt. Antero inclusions, but is top color, even better than the picture shows. This is the best dark color you can get except for a few special collector pieces. I was able to buy some pieces off of the Cardwell's claims on top of the knob/snowpatch area that they mined a couple summers ago.  This one would make an especially nice ring or pendant, and is the best color of any larger rough stone I was able to purchase.
$1,452.25 (Stock #AQBC-0415)
Aquamarine, 12.58 ct, scissor cut, 24.7 x 83 mm. Lt. medium to medium color. The largest fine quality stone from Antero that I've ever offered. Rough was found a few years ago by John Melby, who used to prospect with Andy Taylor, both mentioned in Jacobson's Antero book. Both were fine gem cutters, but are both recently deceased. I purchased the rough from his estate.
Not flawless by any means, but quite clean for the size. Stones of this size from Antero are very rare.
This one is a special piece.
$3,145.00. Willing to consider offers.
Aquamarine, 7.69 ct Portuguese cushion cut, light blue.
A large stone that would make a nice ring or pendant.10.1 x 16.0 mm. Has the typical flaws/inclusions of Mt. Antero material, but still faces up well. One flaw about 1/4 way up one longer side could be covered with a designer prong no doubt. Has more brilliance than the picture shows, I will keep trying to get a better picture.
$769.00 (Stock AQBC-0769)
Aquamarine, 2.90 ct keystone (or kite) cut.
Decently cleanish, has a few light inclusions toward the base. Lighter blue color tone. A very unusual gemstone, if you like something different in shape, 8.3 x 18.9 mm.
$290.00 (Stock # AQBK-0290)
NEW Aquamarine 3.33 ct scissors cut.
Typical color for Mt. Antero gems, nice light blue. Fairly clean, graded VSI. Dimensions are 6.2x13.0 mm. $475.00 (Stock # AQBS-0333)
New Aquamarine 3.25 ct emerald cut.
Typical Light blue in color, has some light inclusions. Dimensions are 6.7x12.3 mm.
$325.00 (Stock # AQBE-0325)
SOLD. Aquamarine,2.01 ct round, 8.3 mm.
Highly sought round gems from Antero. Most crystals are elongated, so it is inefficient to cut round gems from them, yet they remain one of the most popular. Nice medium color, a few slight flaws
$400.00 (Stock # AQBR-0201)
Aquamarine, 3.81 ct oval, Portuguese style, 8.7x 11.7 mm.
This one has quite a bit of inclusion and flaw, but if that doesn't bother you it's priced accordingly. Light blue, good size.
$120.00 (Stock #AQBO-0381)
Aquamarine, 3.35 ct, scissor cut.
Light blue, but pretty clean for Antero aquamarine. There is no "hole" in this, good brilliance. I'll keep trying for a better picture.
$502.50 (AQBS-0335)
Aquamarine, Mt Antero, CO., an emerald cut weighing 0.91 ct, 4.8 x 7 mm slight window, nice medium color,
$150/ct or $136.50 (Stock # AQBE-0091)
Aquamarine, Mt Antero, CO., 0.57 ct, round, light blue, 5.5 mm
$100/ct (Stock #AQBR-0057).
Aquamarine, Mt. Antero, CO. 1.51 ct., cushion cut, nice medium color, 5 x 7 mm, window, Cleanish.
$200/ct or $302.00 (Stock #AQBC-0151)
sold Aquamarine, Mt. Antero, CO, 1.13 ct, round, light blue, 5.2 mm,
$150/ct or $169.50 (Stock #AQBR-0113)
Aquamarine, Mt. Antero, CO., 1.82 ct, oval, good medium color, nice! 6.5 x 9.6 mm
$150/ct or $273.00 (Stock #AQBO-0182)
Aquamarine, Mt. Antero, CO., 1.53 ct teardrop, good medium color, 6.5 x 10.2 mm, with window
$150/ct or $229.50 (Stock #AQBT-0153)
  New! Antero aquas recently made available to me from the major producer of rough Antero material. We now have matching round stones in stock which are so much in demand, and clean to almost clean, with varying degree of color, hand-selected from a much larger parcel. Purchased as cut gems, not rough. They were machine cut in Israel. Sorted loosely into 5, 6, & 7 mm stones, some can be slightly larger, some slightly smaller, some cut deeper, some shallower. All should fit into standard mountings.
Mt. Antero Aquamarines! Picture of the largest of the 7 mm gems, 1.27 ct. I have four to choose from (see below). Hard to come by and the demand is high! Great solitaires for rings or other jewelry you wish to make up. These are all clean stones or very close to it.
$200 per carat.
Antero Aquamarine! The 2nd largest of the 7 mm gems, 1.07 cts. $200/ct.
Antero Aquamarine, 7 mm! 0.93 ct round. Perfect ring stone. $200/ct.
Antero Aquamarine, 7 mm round! 0.92 ct. $200/ct.
The four best Antero 6 mm rounds, really nice medium + blue. The weights are: 0.99ct; 0.81ct; 0.73ct; & 0.58 ct; $200/ct.
Anteros a little bit lighter in color, light to light-medium in color, weights are: 0.77ct; 0.76 ct; 0.64 ct; & 0.62 ct; $150/ct.
5 mm, roughly 0.44 ct. each (ave.) All from Mt. Antero, CO., mined by the Cardwells. Perfect for earrings or other matching stone jewelry projects. Light to light-medium in color, clean or pretty close to it. $100 per carat.
  New! The following listed below were recently received from my overseas cutters of some smaller Mt Antero material sent there for cutting. They will all have some degree of inclusion, some more, some less, and priced accordingly. Some face up quite nicely. Priced according to color and clarity.
Aquamarine, Mt. Antero, CO. 1.07 ct teardrop shape, light blue, 6x9 mm. $100/ct, or $107.00
Aquamarine, Mt. Antero, CO. 0.78 ct pulsar type cut, medium blue, 5x7 mm, $156.00.
I actually have two of these, pretty much identical except this one is a bit more blue. If you want the other one, slightly lighter, you can have it for $78.00
Aquamarine, Mt. Antero, CO. Medium blue oval, 0.80 ct, 5.5x7.5 mm. SI to VSI. $80.00
Aquamarine, Mt. Antero, CO. Light blue cushion, 1.46 ct, 6.5x9 mm INCL, $60/ct, $87.60.
Aquamarine, Mt. Antero, CO. Light blue, 0.95 ct, 6x7.5 mm, $120/ct. SI. $114.00
Aquamarine, Mt. Antero, CO. 0.75 ct, pale to light blue, 5.5x9 mm, fairly clean, VSI. $75.00
Aquamarine, Mt. Antero, CO. 0.91 ct square cushion, 6 mm, pale to light blue, SI. $91.00
Aquamarine, Mt. Antero, CO. 1.11 ct pale blue, 4.5x10.5 mm long pulsar type cut. Fairly clean, VSI. $83.25.
Aquamarine, Mt. Antero, CO. 0.83 ct round, 6.5 mm, pale to light blue, SI. $83.00
Aquamarine, Mt. Antero, CO. 0.84 ct pale to light blue, 6 mm square cushion cut, VSI. $126.00
Aquamarine, Mt. Antero, CO. 0.63 ct square cushion, light blue, 5.5 mm. This one is actully eye-clean. $78.75.
Aquamarine, Mt. Antero, CO. 0.83 ct oval, light blue, 5.5x7.5 mm, SI. $83.00.
Aquamarine/Goshenite, Mt. Antero, CO. 0.51ct, colorless, 5.4 mm round, clean. $51.00.
Please note: Much effort has been made in the attempt to get as accurate a picture as possible of our gemstones. Please keep the following in mind while shopping: Cameras do not see color exactly the same as the human eye and lighting conditions often cause large variances. When taking pictures for the web, we have found that it is very difficult to capture the brilliance that the human eye sees and photos cannot often show all of the stones' ambiance and jewelry pieces' fine detail. Also computer monitors vary and often color tones are set to suit the viewer's preferences. When shopping, remember that "the pictures are meant as a rough guide only." All our products have a money-back guarantee (see terms above) so there is no risk in ordering from Buena Vista Gem Works.

To order or check the availability of a gemstone, simply drop us an email or call us. For information on our acceptable payment methods, guarantee, shipping costs, and shipment preference see our Terms and Conditions page.