3 Carat Spinel (Emerald, 9.54×7.07mm, Red)
Color:
Actual size is set for screen
How big is a 3 carat emerald-cut Spinel?
It depends on the cut parameters and length-to-width ratio, but a typical size of a 3ct emerald-cut Spinel would be around 9.54×7.07 mm (±6%). The lw ratio of this Spinel is 1.35. 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 |
42 % |
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Saved...
|
|
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Ring diameter:
16.9 mm
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Additional Info
Spinel is a rare gemstone that occurs in practically all colors. Because of similar properties, red and blue Spinels have often been mistaken for Rubies and Sapphires. For example, the Black Prince's Ruby is actually a Spinel.
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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Spinel |
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Shape:
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Emerald |
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Chemical Formula:
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MgAl2O4 |
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Crystal Structure:
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Isometric |
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Hardness:
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7.5-8 |
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Specific Gravity
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3.6 |
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Carat weight:
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3 ct |
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Gram weight:
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0.6 g (0.0212 ounces) |
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Points:
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300 pts |
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Length:
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9.54 mm |
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Width:
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7.07 mm |
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Est. face-up size:
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62.73 mm² |
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Volume:
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166.67 mm³ |
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Length-to-width ratio:
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1.35 |
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Refractive Index:
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1.712 - 1.736 |
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Luster:
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Vitreous |
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Wearability:
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Excellent |
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Care Instructions:
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No special or unusual care |
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Color:
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Spinel can be found in the following colors:
                               
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Birthstone:
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Spinel is not an official birthstone of any month |
Popular comparisons:
- 3ct Spinel (Emerald, Red, 9.54 x 7.07) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 3ct Spinel (Emerald, Red, 9.54 x 7.07) vs. 3ct Sapphire (Emerald, Blue, 9 x 7)
- 3ct Spinel (Emerald, Red, 9.54 x 7.07) vs. 3ct Chrysoberyl (Emerald, Light Yellowish Green, 9.45 x 7)
- 3ct Spinel (Emerald, Red, 9.54 x 7.07) vs. 3ct Diamond (Emerald, White, 9.64 x 7.14)
- 9ct Spinel (Emerald, Red, 13.76 x 10.19) vs. 8ct Diamond (Emerald, White, 13.37 x 9.9)
- 2.35ct Spinel (Emerald, Light Blue, 8.9 x 6.7) vs. 2.35ct Spinel (Emerald, Light Blue, 8.79 x 6.51)
- 1.75ct Spinel (Emerald, Light Brown, 7.97 x 5.9) vs. 1.5ct Diamond (Emerald, White, 7.65 x 5.67)
- 12ct Spinel (Emerald, Dark Red, 15.15 x 11.22) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
Use the simulator on this page to play around with different ring and finger configurations.