Buena Vista Gem Works | Colorado Aquamarine Gemstones for Sale

Colorado Mt. Antero Aquamarine Gemstones for Sale

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.) and 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. Mt. Antero aquamarines are very popular with Colorado residents and visitors, especially if they have visited the site personally.

Stones from Mt. Antero typically have small flaws and seldom reach over 10 carats. Crystals are usually not large and tend to be lighter in color, or at least the cleaner crystals and areas do. Good facet grade in darker colors is quite rare. The largest clean gem I've ever seen from here is 23 carats and light in color.

 

**Please order by Product Name and Stock Number with a minimal order of $20.00**
CodingblankspaceTerms and ConditionsblankspaceHow to Order
coaqua0706 soldAquamarine, 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)
coaqua1258 soldAquamarine, 12.58 ct, scissor cut, 8.3 x 24.7 mm., light 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. (Stock #AQBS-1258)
coaqua0141 soldAquamarine, 1.41 ct cut, 6x8 mm, medium-dark blue hexagon, EC. From an old stash I picked up from a digging buddy. Nice!
$282.00(Stock #AQBH-0141)
coaqua0224 soldAquamarine, 2.24 ct, oval cut, medium-dark blue. From an old stash I picked up from a digging buddy. Nice!
$380.80 (Stock #AQBO-0224)
coaqua0769 newAquamarine, 7.69 ct Portuguese cushion cut, light blue, 8.6x13.7 mm.
Old Snowpatch material. A large stone that would make a nice ring or pendant. These larger gems from Antero are hard to find. Has a few 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. Priced accordingly.
$500.00 (Stock #AQBC-0769)
coaqua0552 soldAquamarine, 5.52 ct Portuguese cushion cut, light medium blue.
A large stone that would make a nice ring or pendant.10.1 x 16.0 mm. Has a few visible flaws/inclusions typical of Mt. Antero material, but still faces up pretty well. Old Snowpatch material. This is a larger gem priced accordingly, and would look great in sterling.
(Stock #AQBC-0552) $400.00
coaqua1364 soldAquamarine, Mt. Antero, CO. Something new. 13.64 ct oval cabochon gem, 12.2x18.2x8 mm. Good light-medium blue from the "North Face". SI. I don't cut too many of these en cabochon, but for those looking for something different, here you go. This is the largest of the 3.
(Stock #AQBOC-1364) $350.00
coaqua0983 newAquamarine, Mt. Antero, CO., 9.83 ct oval high dome cabochon gem, 11x13.7x8.4 mm, some light inclusion.
(Stock #AQBOC-0983) $225.00
coaqua0281 newAquamarine, Mt. Antero, CO., Nice dark blue, 2.81 ct pear shape cabochon, 6.6x10.7x5.3 mm. SI.
(Stock #AQBPC-0281) $281.00
coaqua0290 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)
coaqua0599 newAquamarine, Mt. Antero, CO., 5.99 ct teardrop, 10x16.3 mm, nice medium blue, SI.
Has a few visible inclusions, but looks pretty nice. Good size for a fine pendant stone. I was able to negotiate from the miners for a few nice pieces of rough found this past summer from the "North Face" above the Snowpatch.
(Stock #AQBT-0599) $748.75
coaqua0598 newAquamarine, Mt. Antero, CO., 5.98 ct scissors cut, 8.6x13.5 mm, nice light blue, VVSI to VSI.
Has a few very minor inclusions, but looks great. Good size for a cleanish Mt. Antero stone. I was able to negotiate from the miners for a few nice pieces of rough found this past summer from the "North Face" above the Snowpatch.
(Stock #AQBS-0598) $747.50
coaqua0504 newAquamarine, Mt. Antero, CO., 5.04 ct long emerald cut, good light-medium blue, 6x19.5 mm, VVS to VS. Fairly clean, a few light flaws toward the culet. From the new find on the "North Face". Put this one in a silver "tourmaline type mounting" for a terrific pendant. (Stock #AQBE-0504) $504.00
coaqua0824 newAquamarine, Mt. Antero, CO., 8.24 ct step cushion cut, light blue, VVS, 11.2x13x9.5 mm. From the new finds on the "North Face" this past summer. Pretty clean, has a little light jardin in the culet area. Stones this large are hard to come by from Mt. Antero. Faces up nicely, would make a great ring. (Stock #AQBC-0824) $1,236.00
coaqua0447 soldAquamarine, Mt. Antero, CO., 4.47 ct teardrop, 8.6x14.9 mm, INCL.
Good light-medium color. Nice size, mostly clean, but has one visible flaw about halfway up one side, extending about 1/3 of the way in, no way to cut it out. Still, it looks pretty good if you can accept a flaw. Would be great in a silver pendant. Good brilliance. Because of the flaw the price is considerably lower for it's size and color.
(Stock #AQBT--447) $350.00
coaqua0272 soldAquamarine, Mt. Antero, CO., 2.72 ct scissor cut, 7.1x8.9 mm, nice light to light-medium blue (slightly darker than one above), rare EC or very close to it.
Very nice. From a new stash of rough found by the miners at the "North Face" this past summer.
(Stock #AQBS-0272) $544.00
newAquamarine, Mt. Antero, CO., 7.02 ct, long emerald cut, 6.3x19.7 mm, fine medium blue. Has some fine gardin, rated SI to VSI. I may set this in a silver pendant soon, so if you want to order this for something else act fast :-) (Stock #AQBE-0702) $702.00
newAquamarine, Mt. Antero, CO., 2.26 ct, kite cut, 7.9x13.2 mm, fine medium  VSI, slight flaw. VVSI. (Stock #AQBK-0226) $226.00
newAquamarine, Mt. Antero, CO., 1.25 ct, pear, 7.1x7.9 mm, fine medium to medium-dark, VVSI. (Stock #AQBP-0125) $187.50
newAquamarine, Mt. Antero, CO., 2.08 ct, rocker cut, 5.7x10.1 mm, fine medium to medium-dark, VVSI. (Stock #AQBR-0208) $325.00
coaqua0126  Aquamarine, Mt. Antero, CO., 1.26 ct, long emerald cut, 4.5x11.1 mm, fine medium to medium-dark, VSI, slight flaw
Real nice color. Cut shallow due to removal of a creeper flaw, but not windowed. From a new stash of rough found by the miners at the "North Face" this past summer.
(Stock #AQBE-0126) $157.50
coaqua0390 newAquamarine, Mt. Antero, CO. Very nice medium blue Portuguese oval, 3.90 ct, 8.5x11x7, VSI.
Another recent find on the "North Face" this past year.
$585.00 (Stock#AQBO-0390)
coaqua0271 newAquamarine, Mt. Antero, CO. 2.71 scissors cut, 6x11.1, VSI, nice light-medium blue.
Yet another "North Face" find.
(Stock #AQBS-0271) $338.75
coaqua0254 newAquamarine, Mt. Antero, CO. 2.54 ct step shield cut, 7x10.2 mm, close to eye-clean at VVS. Beautiful light blue, from the new finds at the "North Face".
(Stock #AQBS-0254) $381.00
coaqua0330 newAquamarine, Mt. Antero, CO., mm, nice light blue, 3.30 ct double round (16 mains), 10.3 mm, SI to INCL.
Unusual size for a Mt. Antero round stone. From the new "North Face" finds, has some light inclusions, but a large stone, over 10 mm.
(Stock #AQBR-0330) $250.00
coaqua0309 newAquamarine 3.09 ct scissors cut, 6.2x12.2 mm. Light blue, nice and bright
Fairly clean, graded VVSI, a good-looking gem. From new finds at the "North Face" of Antero.
(Stock #AQBS-0309) $386.25
coaqua0160 soldAquamarine, Mt. Antero, CO., 5x6.8 mm, 1.60 ct, nice light blue, pulsar, SI.
Has visible flaw in one end. From a new stash of rough found by the miners at the "North Face" this past summer.
(Stock #AQBP-0160) $100.00
coaqua0178 soldAquamarine, Mt. Antero, CO., 1.78 ct, 6.9x9.8 mm, nice light blue, pear, VVSI.
From a new stash of rough found by the miners at the "North Face" this past summer.
(Stock #AQBP-0178) $178.00
coaqua0151b New! Aquamarine, Mt. Antero, CO., 1.51 ct, 4.8x11 mm, rocker cut, nice light blue, VVSI. From a new stash of rough found by the miners at the "North Face" this past summer. (Stock #AQBR-0151) $151.00
coaqua0306 newAquamarine, Mt. Antero, CO., 3.06 ct, oval, good light-medium color, 9x12.3 mm, SI.
Has a few flaws, but would still look great in silver. From the "North Face".
(Stock #AQBO-0306) $125.00
coaqua0333 Aquamarine 3.33 ct scissors cut, Dimensions are 6.2x13.0 mm.
Typical color for Mt. Antero gems, nice light blue. Fairly clean, graded VSI, a good-looking gem.
$475.00 (Stock #AQBS-0333)
coaqua0134 Aquamarine, Mt. Antero, CO., 1.34 ct, oval, good light-medium color, 6.5 x 9 mm.
Better than picture.Has one flaw of significance off the side of the table, but still looks pretty decent.
(Stock #AQBO-0134) $67.00
coaqua0106 soldAquamarine, Mt. Antero, CO., 1.06 ct flower cut round, 6.2 mm, nice light blue, EC.
Found at the Chip 'N Dale Mine on sister peak Mt. White. I was able to negotiate for a few nice small pieces of rough found this past summer.
(Stock #AQBR-0106) $150.00
coaqua0201 soldAquamarine, Mt. Antero, CO., 2.01 ct flower cut round, 7.4 mm, nice light blue, VVSI, quite clean
Thee Chip 'N Dale Mine on sister peak Mt. White. I was able to acquire a few nice small pieces of rough found this past summer.
(Stock #AQBR-0201) $300.00
coaqua0149 newAquamarine, Mt. Antero, CO., 1.49 ct scissors cut, 4.6X11.5 mm, light blue, VVSI
North Face find, pretty clean.

(Stock#AQBS-0149) $186.25
coaqua0073 soldAquamarine, Mt. Antero, CO., 0.73 ct pulsar cut, 5.2x5.5 mm, nice light blue, EC.
Found at the Chip 'N Dale Mine on sister peak Mt. White. I was able to acquire a few nice small pieces of rough found this past summer.
(Stock #AQBP-0073) $73.00
coaqua0275 soldAquamarine, Mt. Antero, CO., 2.75 ct pulsar cut, 7.1x9.7 mm, nice light blue, VVSI, quite clean.
Found at the Chip 'N Dale Mine on sister peak Mt. White. I was able to negotiate for a few nice small pieces of rough found this past summer.
(Stock #AQBP-0275), $450.00
coaqua0202 newAquamarine, Mt. Antero, CO., 2.02 ct scissors cut, 5.2x11 mm, light blue, VSI
Found at the Chip 'N Dale Mine on sister peak Mt. White. New find.
(Stock #AQBS-0202) $303.00
coaqua0132 newAquamarine, Mt. Antero, CO., 1.32 ct scissors cut, 5x8.5 mm, light blue. VSI, small flaw at one end, still looks nice.
Found at the Chip 'N Dale Mine on sister peak Mt. White. New find.
(Stock #AQBS-0132) $132.00
coaqua0147 newAquamarine, Mt. Antero, CO., 1.25 ct arrowhead cut, light blue, 1.25 ct, clean! 5.3 x 10.6mm.
Found at the Chip 'N Dale Mine on sister peak Mt. White. New find. These cuts make great pendant stones.
(Stock #AQBA-0125) $187.50
coaqua0189 newAquamarine, Mt. Antero, CO., 1.89 ct long emerald cut. 4.6x13 mm. Light blue. VSI, has a little light jardin.
Works great in a standard tourmaline mounting. Found at the Chip 'N Dale Mine on sister peak Mt. White. New find.
(Stock #AQBE-0189) $150.00
coaqua0147 newAquamarine, Mt. Antero, CO., 1.47 ct emerald cut, 4.5x10.5 mm. Light blue, has some light gardin, VSI.
Found at the Chip 'N Dale Mine on sister peak Mt. White. New find.
(Stock #AQBE-0147) $120.00
coaqua7mm 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. (Stock #coaqua7mm) $150 per carat.
coaqua6mm Anteros a little bit lighter in color, light to light-medium in color, close to 6 mm. Weights are:  0.65 ct; 0.64 ct;
(Stock #co aqua 6mm) $125/ct.
coaqua5mm Mt. Antero Co Aquamarine, 5 mm, roughly 0.44 ct. each average, light to light-medium in color, clean or pretty close to it, mined by the Cardwells.
Perfect for earrings or other matching stone jewelry projects.
(Stock #coaqua5mm) $100 per carat.
The following listed below were 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.
coaqua0107 soldAquamarine, Mt. Antero, CO. 1.07 ct teardrop shape, light blue, 6x9 mm.
100/ct, or $107.00
(Stock #AQBT-0107)
cpaqua0146 soldAquamarine, Mt. Antero, CO. Light blue cushion, 1.46 ct, 6.5x9 mm INCL
$60/ct
$87.60 (Stock #AQBC-0146)
coaqu0075 Aquamarine, Mt. Antero, CO. 0.75 ct, pale to light blue, 5.5x9 mm, fairly clean, VSI.
$75.00 (Stock #AQBT-0075)
coaqua0091 Aquamarine, Mt. Antero, CO. 0.91 ct square cushion, 6 mm, pale to light blue, SI. $91.00
coaqua083 soldAquamarine, Mt. Antero, CO. 0.83 ct round, 6.5 mm, pale to light blue, SI.
$83.00 Stock #AQBR-0083)
coaqua0084 Aquamarine, Mt. Antero, CO. 0.84 ct pale to light blue, 6 mm square cushion cut, VSI.
$126.00 (Stock #AQBC-00894)
coaqua0063 Aquamarine, Mt. Antero, CO. 0.63 ct square cushion, light blue, 5.5 mm. This one is actully eye-clean.
$78.75 (Stock #AQBC-0063)
coaqua0051 Aquamarine/Goshenite, Mt. Antero, CO. 0.51ct, colorless, 5.4 mm round, clean.
$51.00 (Stock #AQBR-0051)
PLEASE NOTE: Much effort has been made in the attempt to get as accurate a picture as possible of our gemstones. 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 the Buena Vista Gem Works.

To order or check on the availability of the piece(s), simply drop me an email or send me a text at the email/phone number below. Please include the Product Name and Stock Number when inquiring about product or placing an order. For more information on ordering, my guarantee, payment methods, shipping preferences, and shipping costs, see my Terms and Conditions page. Note: I am frequently "off the grid" when I am in the field collecting and might not be able to respond to your inquiry promptly. I will respond when I am once again in cell phone range.