Gemstones by John Miller, GG
Here are a few stones I am currently offering for sale. Things come and go, and this page will probably never contain an accurate, up to date listing, so please tell me what interests you and I'll see if I have something appropriate.
At times, I offer some stones at bargain rates on Ebay, so check out my current offerings here.
Note: Unless otherwise noted below, all of these are stones are natural in origin and are not enhanced or treated in any way.
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|Medium deep blue-green tourmaline from Tanzania, 23.2 x 12.2 mm emerald cut weighing 25.30 carats. Very clean, intense color, perfectly cut. This is an exceptionally large and delicious tourmaline in a classic cut. With prices rising and material like this becoming less and less available, you'd be well advised to snatch this up, as it might be a while before you see a similar stone. Price upon request.|
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|Synthetic hydrothermal emerald, dark bluish green, 11.7 mm square cushion, 5.79 carats. This is manmade material grown in a laboratory, but it sure is gorgeous! Very clean, very intense color, very stunning! SOLD!|
|Sphalerite, medium dark slightly greenish yellow, 7.0 mm square emerald cut (Asscher cut), 2.60 carats. This is a fine example of a collector's gemstone from Mexico with intense color, high dispersion, and few inclusions. It could be used carefully in jewelry such as a pin or pendant but is better suited for a collection. SOLD!|
|Aquamarine, medium dark blue, 9.2 x 8.0 mm parallelogram, 2.40 carats. The color is unusually dark for aquamarine and represents the "Santa Maria Afrique" color of some stones from Zambia, where this stone originated. Most aquamarine is heat treated to eliminate greenish tones. The color change is permanent and does not detract from the value of the stone. I cannot tell whether this stone was heated before I got it or not. In any case, the intense color and unusual cut make this a great choice for a one-of-a-kind piece of jewelry. You can have it for a bargain $700.|
|Chrome tourmaline, intense dark green, 8.5 mm round, 2.28 carats. This material, colored by traces of chromium, is perhaps one of the most underrated gemstones. Its color is a fine deep "emerald" green. The stone is very clean and just begging to be set in a fine gold or platinum setting. It just doesn't get any better than this! A bargain at $1,200.|
|Chrome tourmaline, intense dark green, 9.3 x 7.4 mm oval, 2.05 carats. Another fine, clean, example of this amazing material. SOLD!|
|Spodumene, medium light slightly yellowish green, 10.2 x 8.5 mm fancy rectangle, 4.81 carats. The photo is a little too bluish; the true color is almost a light mint green. Spodumene has an easy cleavage that makes it a difficult stone to facet, but this one came out clean, bright, and luscious. It could be used in jewelry with a little care or would make a fine collector's piece. SOLD!|
|Tsavorite, intense medium dark green, 5.8 mm square emerald ("Asscher") cut, 1.31 carats. The color is not quite as intense as the chrome tourmalines above, but it's a spectacular "emerald" green and the stone is unusually clean. Stones this nice are not so easily obtainable these days. SOLD!|
|Topaz, light medium pinkish brown, 18 x 11 mm parallelogram, 16.75 carats. An unusual cut and color, fairly clean except for a minor veil. This could make an exciting and large piece of jewelry for a very modest price. Just $400!|
|Madeira citrine, medium dark reddish orange, 17.2 mm round, 20.65 carats. Big, bold, and beautiful! It looks a lot brighter and more vivid than the photo. Almost all citrine originated as amethyst and was heat treated to create a permanent color change from purple to yellow or orange, and this is no exception. This lunker is pretty large for use in jewelry but would make a great collector's piece. SOLD!|
|Tourmaline, medium dark blue-green, 10.2 x 15.0 mm triangle/shield, 4.37 carats. This Namibian material has a fantastic blue-green to green-blue color. This clean, rich piece would be really striking in a nice jewelry setting. Priced to sell, it's well worth a lot more than $600!|
|Chrysoberyl, medium light slightly greenish yellow, pair of 7.5 mm trillions, 3.28 carats total weight. Bright, hard, extremely tough and durable, chrysoberyl is vastly underrated and makes a terrific stone for jewelry. These could make great earrings or rings. SOLD!|
|Tourmaline, medium golden orange, 6.8 mm trillion, .83 carat. A bright, unusual color in tourmaline, this lovely stone would make a great ring or pendant. SOLD!|
|Aquamarine, medium dark blue, 15.0 x 10.4 mm cushion, 7.17 carats. This is a little lighter than the aqua shown above but is still quite dark for aquamarine. Most aquamarine is heat treated to eliminate greenish tones. The color change is permanent and does not detract from the value of the stone. I cannot tell whether this stone was heated before I got it or not. In any case, the intense color and unusual cut make this a great choice for a one-of-a-kind piece of jewelry.
If you have comments or questions, please provide feedback via my contact page.