5.5 Carat Ruby (Round, 10.55mm, Red)
Color:
Actual size is set for screen
How big is a 5.5 carat round-cut Ruby?
It depends on the cut proportions, but typically a 5.5ct round-cut Ruby would measure around 10.55 mm (±4%) in diameter. You can check the finger coverage in the simulator below.
Ring:
Skin tone:
|
Ring width:
3.0 mm
|
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 % |
|
Saved...
|
|
|
Ring diameter:
16.9 mm
|
Additional Info
Ruby is a red to pink variety of the mineral Corundum. Its name comes from the Latin word "ruber", which simply means "red". Most Rubies on the market are heat-treated to enhance their color and clarity.
Where to buy?
For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Gem Details
|
Name:
|
Ruby |
|
Mineral Group:
|
Corundum |
|
Shape:
|
Round |
|
Chemical Formula:
|
Al2O3 |
|
Crystal Structure:
|
Hexagonal |
|
Hardness:
|
9 |
|
Specific Gravity
|
4 |
|
Carat weight:
|
5.5 ct |
|
Gram weight:
|
1.1 g (0.0388 ounces) |
|
Points:
|
550 pts |
|
Length:
|
10.55 mm |
|
Width:
|
10.55 mm |
|
Average diameter:
|
10.55 mm |
|
Est. face-up size:
|
87.42 mm² |
|
Volume:
|
275 mm³ |
|
Length-to-width ratio:
|
1 |
|
Refractive Index:
|
1.76 - 1.77 |
|
Luster:
|
Vitreous to adamantine |
|
Wearability:
|
Excellent |
|
Care Instructions:
|
No special or unusual care |
|
Color:
|
Ruby can be found in the following colors:
 
|
|
Birthstone:
|
Ruby is a birthstone for the month of July |
Popular comparisons:
- 5.5ct Ruby (Round, Red, 10.55 x 10.55) vs. 5ct Ruby (Round, Red, 10.22 x 10.22)
- 5.5ct Ruby (Round, Red, 10.55 x 10.55) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Ruby (Round, Red, 5.98 x 5.98) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 3ct Ruby (Round, Red, 8.62 x 8.62) vs. 5ct Ruby (Round, Red, 10.22 x 10.22)
- 0.5ct Ruby (Round, Red, 4.75 x 4.75) vs. 0.5ct Emerald (Round, Green, 5.41 x 5.41)
- 1ct Ruby (Round, Red, 5.98 x 5.98) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Ruby (Round, Red, 5.98 x 5.98) vs. 1ct Tanzanite (Round, Blue, 6.37 x 6.37)
- 1ct Ruby (Round, Red, 5.98 x 5.98) vs. 1.5ct Ruby (Round, Red, 6.84 x 6.84)