11 Carat Topaz (Cabochon, 15.87×10.58mm, Blue)
Color:
Actual size is set for screen
How big is an 11 carat cabochon-cut Topaz?
It depends on the cut parameters and length-to-width ratio, but a typical size of an 11ct cabochon-cut Topaz would be around 15.87×10.58 mm (±6%). The lw ratio of this Topaz is 1.5. See below how big it looks on a ring and finger.
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 |
63 % |
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Saved...
|
|
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Ring diameter:
16.9 mm
|
Additional Info
Topaz is a gemstone of many colors. It’s commonly found colorless (white) and then treated to achieve desired colors. Blue Topaz is the most common and popular color variety.
Where to buy?
For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Gem Details
|
Name:
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Topaz |
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Shape:
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Cabochon |
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Chemical Formula:
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Al2SiO4(F,OH)2 |
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Crystal Structure:
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Orthorhombic |
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Hardness:
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8 |
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Specific Gravity
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3.53 |
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Carat weight:
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11 ct |
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Gram weight:
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2.2 g (0.0776 ounces) |
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Points:
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1100 pts |
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Length:
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15.87 mm |
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Width:
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10.58 mm |
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Est. face-up size:
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137.68 mm² |
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Volume:
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623.23 mm³ |
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Length-to-width ratio:
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1.5 |
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Refractive Index:
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1.610 - 1.638 |
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Luster:
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Vitreous |
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Wearability:
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Very good |
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Care Instructions:
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Avoid hard hits or drops |
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Color:
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Topaz can be found in the following colors:
                              
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Birthstone:
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Topaz is a birthstone for the month of December |
Popular comparisons:
- 1ct Topaz (Cabochon, Blue, 7.14 x 4.76) vs. 1ct Tanzanite (Cabochon, Blue, 7.29 x 4.86)
- 1ct Topaz (Cabochon, Light Bluish Green, 5 x 7) vs. 1ct Tourmaline (Cabochon, Yellowish Green, 6 x 6)
- 1ct Topaz (Cabochon, Blue, 7.14 x 4.76) vs. 0.5ct Topaz (Round, Blue, 5 x 5)
- 1ct Topaz (Cabochon, Blue, 7.14 x 4.76) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Topaz (Cabochon, Light Bluish Green, 7.14 x 4.76) vs. 1ct Peridot (Cushion, Green, 6.5 x 4.5)
- 7.5ct Topaz (Cabochon, White, 13.97 x 9.31) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 25ct Topaz (Cabochon, Orange, 20.87 x 13.91) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 4.98ct Topaz (Cabochon, Blue, 12.18 x 8.12) vs. 4.13ct Topaz (Cabochon, Blue, 11.45 x 7.63)