0.77 Ct Benitoite (Round) |
vs
|
4 Ct Tourmaline (Emerald) |
blue |
|
|
5.65×5.65 mm | 11.03×8.17 mm | |
actual size | ||
![]() |
![]() |
|
|
Actual size is set for screen
Change
Settings
Ring:
Skin tone:
Ring width: 3.0 mm
Saved...
|
![]() ![]() ![]() |
64 mm |
![]() ![]() ![]() |
|
||||||||||||||||
|
Actual sizes of
0.77ct Benitoite Round (5.65×5.65mm, Blue)
and
4ct Tourmaline Emerald (11.03×8.17mm, Light Green )
as they would appear on a ring and finger.
Adjust the ring and finger size to get an idea of how these gemstones would look on your finger.
Where to buy?
For Benitoite or Tourmaline check what Amazon has to offer. You'll usually find quite a selection from many different vendors. Worth a check. For other high quality gemstones (Rubies, Saphhires, Emeralds) and especially Diamonds, I highly recommend JamesAllen.
Face-up Size
All things being equal, Benitoite will face-up smaller than Tourmaline for a given
carat weight, because it has higher specific gravity
(3.65 vs. 3.1 - this means it's "heavier" compared to Tourmaline of the same size). Face-up size also depends heavily on the
proportions of the cut.
Face-up area is a measure of the size of the gem when viewed from above (as set in a ring). It tells you how big the gem is at the girdle plane.
Face-up area is a measure of the size of the gem when viewed from above (as set in a ring). It tells you how big the gem is at the girdle plane.
0.77 Ct Benitoite (Round) | 4 Ct Tourmaline (Emerald) | |
5.65×5.65 mm | vs | 11.03×8.17 mm |
25.07 mm² | 83.81 mm² |


0.77ct Benitoite Round (5.65×5.65mm) | |
4ct Tourmaline Emerald (11.03×8.17mm) | |
Difference: 234% (58.74 mm²) |
4ct Tourmaline Emerald (11.03×8.17mm) has approx. 234% more face-up area than 0.77ct Benitoite Round (5.65×5.65mm).
Popular comparisons:
- 0.77ct Benitoite (Round, Blue, 5.65 x 5.65) vs. 0.79ct Sapphire (Emerald, Blue, 5.9 x 4.37)
- 0.77ct Benitoite (Round, Blue, 5.65 x 5.65) vs. 0.79ct Sapphire (Emerald, Dark Blue, 5.9 x 4.37)
- 0.77ct Benitoite (Round, Blue, 5.65 x 5.65) vs. 5ct Tourmaline (Emerald, Light Green , 11.89 x 8.81)
- 1ct Benitoite (Round, Blue, 6.16 x 6.16) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Benitoite (Round, Light Blue, 6.16 x 6.16) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 5ct Benitoite (Round, Blue, 10.54 x 10.54) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 0.2ct Benitoite (Round, Blue, 3.5 x 3.5) vs. 0.32ct Benitoite (Round, Blue, 4.2 x 4.2)
- 2ct Benitoite (Round, Blue, 7.77 x 7.77) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 0.21ct Benitoite (Round, Blue, 3.5 x 3.5) vs. 0.32ct Benitoite (Round, Blue, 4.2 x 4.2)
Enter your screen size (diagonal)
My screen size is
inches
Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.