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)
soldAquamarine, Mt. Antero, CO, 8.05 ct, long emerald cut, 6.2x26 mm, VVSI to VSI. Has a small reflective flaw at the top end in the crown area that is visible under certain lighting condtions and angles. Overall pretty clean. Now set in a sterling silver pendant mount, ready to wear with your favorite chain. (Stock #SSAQBE-0805) $1,056.00
coaqua0769 Aquamarine, 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 visible whitish flaw about 1/4 way up one longer side could be covered with a designer prong or bezel no doubt. Priced accordingly.
$500.00 (Stock #AQBC-0769)
coaqua0599 Aquamarine, Mt. Antero, CO., 5.99 ct teardrop, 10x16.3 mm, nice medium blue, SI.
Has a few very small visible inclusions near the culet, but looks pretty great overall. 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. Hard to get them this large.
(Stock #AQBT-0599) $748.75
Aquamarine, Mt. Antero, CO. Very nice medium blue Portuguese oval, 2.24 ct, 7.4 x 9.1 mm, VSI. A fine oval aqua from the north face, good brilliance. Has some faint inclusions which really don't show without strong light and some magnification. (Stock #AQBO-0224) $336.00
coaqua0598 Aquamarine, 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
coaqua0824 Aquamarine, 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
SOLD. Aquamarine, Mt. Antero, CO., 2.03 ct emerald cut, 7.1x7.7 mm, VSI to VVS. Fine darker blue stone from the famous Snowpatch. (Stock #AQBE-0203) $750.00
SOLD. Aquamarine, Mt. Antero, CO., 2.69 ct emerald cut, 7.2x9.7 mm, SI. I'd rate this medium +, with some internal jardin or inclusion. Another recent Snowpatch stone. (Stock #AQBE-0269) $200.00
Aquamarine, Mt. Antero, CO., 4.08 ct, Princess type cut, 8.5x12.2 mm. Has a pale color and some inclusions, so is priced accordingly. Still, if you are on a budget and really want a larger Antero stone, this would look nice in silver. Priced at only $30/ct. (Stock #AQBP-0408) $122.40
coaqua0126  soldAquamarine, 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 Aquamarine, Mt. Antero, CO. Very nice medium blue Portuguese oval, 3.90 ct, 8.5x11x7, VSI. Slight visible flaw in one end, otherwise pretty clean.
Another recent find on the "North Face" this past year.
$585.00 (Stock#AQBO-0390)
newAquamarine, Mt. Antero, CO. 1.78 ct scissors cut, 6.5x8.5 mm, VVS, light-medium blue. From recent finds on the North Face. (Stock #AQBS-0178) $222.50
coaqua0271 Aquamarine, Mt. Antero, CO. 2.71 scissors cut, 6x11.1, VSI, nice light-medium blue.
Yet another "North Face" find.
(Stock #AQBS-0271) $338.75
newAquamarine, Mt. Antero, CO., 0.91 mazda triangle (step) cut, 6.3 mm., VSI. Good brilliance, nice med-dark color, from the famous Snowpatch area. Mined this past season. (Stock #AQBT-0091) $182.00
newAquamarine, Mt. Antero, CO., 2.42 ct, fancy triangle cut, 8.5 mm, Snowpatch area. This  has an odd slightly hazy look to it, but has nice darker color. If brighter would run at least $400/ct. Should still make a fine ring or pendant. (Stock #AQBT-0242) $242.00
SOLD. Aquamarine, Mt. Antero, CO. Light blue stone, 1.91 ct, 6x10mm step cushion cut, VSI to VVSI. From a recent find. (Stock #AQBC-0191) $150.00
coaqua0254 Aquamarine, 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 SOLD. Aquamarine, 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 jardin inclusions, but a large stone, over 10 mm, rare in round stones.
(Stock #AQBR-0330) $175.00
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
New. Aquamarine, Mt. Antero, CO., 1.80 ct, oval, VS, 7x9.3 mm. Light blue, some jardin. (Stock #AQBO-0180) $180.00
SOLD. Aquamarine, Mt. Antero, CO., 1.75 ct, Portuguese cushion, light blue, 6.1x8.7 mm, VSI. (Stock #AQBC-0175) $175.00
SOLD. Aquamarine, Mt. Antero, CO., 1.29 ct, scissors cut, medium blue, 4.5x8.5 mm, SI. (Stock #AQBS-0129) $129.00
New. Aquamarine, Mt. Antero, CO., 1.02 ct, square brilliant, light blue, SI-VSI, 6 mm. (Stock #AQBS-0102) $102.00
New. Aquamarine, Mt. Antero, CO., 0.92 ct, scissors cut, light/med. blue, 4x8.5 mm, VSI. (Stock #AQBS-0092) $92.00
SOLD. Aquamarine, Mt. Antero, CO., 1.40 ct, Portuguese oval, medium blue, VSI to SI. (Stock #AQBO-0140) $140.00
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
coaqua0149 SOLD. Aquamarine, 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
coaqua0202 Aquamarine, 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 Aquamarine, 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
coaqua0189 Aquamarine, 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 Aquamarine, 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
   soldAquamarine, Mt. Antero, CO., 1.44 ct round, 7.0 mm, SI, nice color, bright. Set in sterling silver 4 prong pendant. (Stock #SSAQBR-0144) $120.00 
  New. Aquamarine, Mt. Antero, CO., 1.21 ct round, 6.2 mm, I, has a flaw or two, but decent color. (Stock #SSAQBR-0121) $65.00
  New. Aquamarine, Mt. Antero, CO., 7x9 mm, oval, light blue,
has some jardin flaws. Stone is between 1-1.5 cts. (Stock #SSAQBO) $50.00
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. Brighter than picture. (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 SOLD. 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.
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. $71.00
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 actually 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.