18 Carat Andesine (Round, 17.93mm, Orange)
Color:
Actual size is set for screen
How big is an 18 carat round-cut Andesine?
It depends on the cut proportions, but typically an 18ct round-cut Andesine would measure around 17.93 mm (±4%) in diameter. You can check the finger coverage in the simulator below.
Ring:
Skin tone:
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Ring width:
3.0 mm
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Saved...
64 mm
| Your settings | |
|---|---|
Ring |
Gold |
Skin tone |
Light |
Ring diameter |
16.9 mm |
Ring width |
3.0 mm |
Finger length |
64 mm |
Finger coverage |
107 % |
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Saved...
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Ring diameter:
16.9 mm
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Additional Info
Andesine became very popular in the early 2000s when a wave of vividly colored red and orange stones entered the market. It was originally found in the Andes Mountains of South America, hence the name. It is typically reddish and orange in color.
Where to buy?
For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Gem Details
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Name:
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Andesine |
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Mineral Group:
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Plagioclase feldspar |
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Shape:
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Round |
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Chemical Formula:
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(Ca,Na)(Al,Si)4O8 |
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Crystal Structure:
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Triclinic |
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Hardness:
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6 - 6.5 |
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Specific Gravity
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2.67 |
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Carat weight:
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18 ct |
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Gram weight:
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3.6 g (0.127 ounces) |
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Points:
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1800 pts |
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Length:
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17.93 mm |
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Width:
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17.93 mm |
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Average diameter:
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17.93 mm |
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Est. face-up size:
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252.49 mm² |
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Volume:
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1348.31 mm³ |
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Length-to-width ratio:
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1 |
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Refractive Index:
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1.560 - 1.568 |
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Luster:
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Vitreous |
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Wearability:
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Good |
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Care Instructions:
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Avoid extreme heat or ultrasonic cleaners |
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Color:
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Andesine can be found in the following colors:
        
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Birthstone:
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Andesine is not an official birthstone of any month |
Popular comparisons:
- 1ct Andesine (Round, Orange, 6.84 x 6.84) vs. 1ct Ruby (Round, Red, 5.98 x 5.98)
- 4ct Andesine (Round, Orange, 10.86 x 10.86) vs. 4ct Emerald (Emerald, Dark Bluish Green, 11.56 x 8.56)
- 40ct Andesine (Round, Light Red, 23.39 x 23.39) vs. 40ct Topaz (Round, Red, 21.32 x 21.32)
- 1ct Andesine (Round, Orange, 6.84 x 6.84) vs. 5ct Andesine (Emerald, Orange, 12.49 x 9.25)
- 1ct Andesine (Round, Orange, 6.84 x 6.84) vs. 1ct Aquamarine (Emerald, Light Blue, 7.28 x 5.39)
- 1ct Andesine (Round, Orange, 6.84 x 6.84) vs. 5ct Benitoite (Round, Blue, 10.54 x 10.54)
- 1ct Andesine (Round, Orange, 6.84 x 6.84) vs. 5ct Benitoite (Round, Blue, 10.4 x 10.54)
- 1ct Andesine (Round, Orange, 6.84 x 6.84) vs. 5ct Amethyst (Round, Violet, 11.73 x 11.73)