Cut Citrine
Ametrine Gemstones From Bolivia
Most gemstones are found in multiple locations in the world. Gems that are found in just a single location, such as tanzanite, tend to be quite expensive. But that is not the case with ametrine. Though virtually all the world’s supply of ametrine comes from a single mine — the Anahi mine in southeastern Bolivia — ametrine continues to be a very affordable gem, though prices have been rising over the last decade.
The Anahi mine has been known for hundreds of years. The story is that the mine first became famous in the seventeenth century when a Spanish conquistador received it as a dowry when he married an Ayoreos princess named Anahi. Ametrine crystals were first introduced to Europe through the conquistadors’s gifts to the Spanish queen. However, ametrine has only been available on the market in any quantity since about 1980. The Anahi mine is also one of the world’s largest producers of high quality amethyst.
Amethyst and citrine are both forms of quartz and are often found in the same locations. But it is rare for both colors of quartz to be found in the same crystal. Both citrine and amethyst are colored by traces of iron, but the color of the zones visible within ametrine are due to differing oxidation states of iron within the crystal. The different oxidation states occur due to temperature differences across the crystal during its formation.
Ametrine is most typically faceted in a rectangular shape with a 50/50 pairing of amethyst and citrine. Sometimes a checkerboard pattern of facets is added to the top to increase light reflection. Ametrine can also be cut to blend the two colors so that the result is a mixture of yellow, purple, and peach tones throughout the stone.
The classic 50/50 split is actually a very inefficient use of the rough material and typically requires that all stones be cut in an emerald cut. Now we are starting to see more intriguing cuts with a 70/30 to 90/10 split of colors. Some interesting new cuts have 3 or more color zones, and some have orange hues as well as purple and gold.
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GemSelect is a leading online dealer of fine gemstones, with more than 115 different varieties of gems in stock. Buy Fine Ametrine from GemSelect
Orvieto Silver Checkerboard-Cut Citrine Drop Earrings
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1.00 CT Natural OVAL Cut Faceted YELLOW CITRINE LOOSE GEMSTONE Rock Gems 7X5 MM $4.93 |
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C1 1/5 carat loose gemstone gem-stone Citrine Round cut stone natural $2.99 |
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1.64 ct Enormous Natural Spectrolite Round Cabochon Cut Brown Color $9.99 |
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C1 1/5 carat loose gemstone gem-stone Citrine Round cut stone natural $2.99 |
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82a4 HH Gorgeous ROUND CUT CITRINE & GREEN AMETHYST GEMSTONES SILVER RING SIZE 8 $1.04 |
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CITRINE EMERALD CUT LOOSE 11.84 x 9.21 x5.76mm. 4.86ct. WILD HONEY COLOR NATURAL $12.15 |
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Princess Cut Citrine Gold Ring Size-7 ONLY $11.00 |
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Boucher Square Cut Citrine and Topaz Floral Bracelet – dated 1955 $365.00 |
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2.14 ct Natural Citrine Unimaginable Pear Cut Splendid Golden Yellow Color $9.99 |
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C2 1/2 carat loose gemstone gem-stone Citrine Round cut stone natural $2.99 |
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lot 3 loose gemstones pear cut opals vintage estate antique $9.99 |
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loose gemstone emerald cut quartz 17.94 x 13.19 x 8.52mm 15.82ct vintage estate $24.99 |
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CITRINE EMERALD CUT LOOSE 11.34 x 10.50×7.57mm. 6.24ct. WILD HONEY COLOR NATURAL $15.60 |
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LEMON QUARTZ 5 MM SQUARE CUT 5 PC SET $1.99 $1.99 |
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LEMON QUARTZ 6 MM SQUARE CUT 2 PC SET $1.79 $1.79 |
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LEMON QUARTZ 7 MM SQUARE CUT $1.19 PER GEMSTONE $1.19 |
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LEMON QUARTZ 8 MM SQUARE CUT $1.49 PER GEMSTONE $1.49 |
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LEMON QUARTZ 9 MM SQUARE CUT $1.99 PER GEMSTONE $1.99 |
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LEMON QUARTZ 10 MM SQUARE CUT $2.69 PER GEMSTONE $2.69 |
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LEMON QUARTZ 11 MM SQUARE CUT $3.49 PER GEMSTONE $2.69 |
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LEMON QUARTZ 12 MM SQUARE CUT $4.59 PER GEMSTONE $4.59 |
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LEMON QUARTZ 13 MM SQUARE CUT $5.59 PER GEMSTONE $5.59 |
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LEMON QUARTZ 14 MM SQUARE CUT $7.99 PER GEMSTONE $7.99 |
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C81 Citrine Baguette cut stone natural 1.5 carat loose gemstone gem-stone $8.10 |
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3.75 ct Natural Citrine Alluring Oval Cut Charming Golden Yellow Color $9.99 |
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Princess Cut Citrine Gold Ring Size-8 ONLY $11.00 |
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23a124 HH Citrine & Oval Cut Ruby Spinel & White topaz Gems Silver Ring Size 10 $9.99 |
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Love Heart Unique Cut Jewelry Sweet Golden Citrine Sterling Silver Ring size 7 $5.69 |
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6.78 ct Attractive Natural Honey Quartz Pear Cut Glister Honey Brown Color $9.99 |
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LARGE EMERALD CUT CITRINE YELLOW TOPAZ 14K PENDANT $269.00 |
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2 ctw. Marquise Cut Citrine & Diamond Yellow Gold Ring $296.00 |
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engagement jewelry gift PEAR CUT YELLOW CITRINE WHITE GOLD GP PENDANT NECKLACE $5.99 |
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65a20 HH Citrine & Princess Cut Rainbow & White topaz Gemstone Silver Ring Sz 8 $9.99 |
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14k 2 Amethyst Marquise 3 Emerald Cut Citrine Band Ring New Tag Sz 6 Yellow Gold $439.99 |
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LEMON QUARTZ 14 X 10 CUSHION CUT CHECKERBOARD TOP $4.39 |
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LEMON QUARTZ 11 X 9 CUSHION CUT CHECKERBOARD TOP $2.69 |
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LEMON QUARTZ 10 X 8 CUSHION CUT CHECKERBOARD TOP $1.89 |
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3.76 ct Natural Citrine Fascinating Oval Cut Glistening Golden Yellow Color $9.99 |
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PAIR 3.74 CT. TOP QUALITY NATURAL GEMSTONE OVAL CUT 8x10mm GOLDEN YELLOW CITRINE $9.99 |
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