4ct Sapphire (Cushion, 8.88×8.88mm, Blue) vs 1.5ct Diamond (Round, 7.38×7.4mm, White)
Quick summary: When looked from above (face-up position), 4ct Sapphire (8.88×8.88mm, cushion cut) appears 65% larger than 1.5ct Diamond (7.38×7.4mm, round cut). See below how they compare side-by-side on a ring and finger.
| 4ct Sapphire (cushion cut) |
vs
|
1.5ct Diamond (round cut) |
|
blue |
|
|
| 8.88×8.88 mm | 7.38×7.4 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
4ct Sapphire Cushion (8.88×8.88mm, Blue)
and
1.5ct Diamond Round (7.38×7.4mm, White)
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 certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Face-up Size
All things being equal, Sapphire will face-up smaller than Diamond for a given
carat weight, because it has higher specific gravity
(4 vs. 3.52 - this means it's "heavier" compared to Diamond 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.
| 4 Ct Sapphire (Cushion) | 1.5 Ct Diamond (Round) | |
| 8.88×8.88 mm | vs | 7.38×7.4 mm |
| 70.97 mm² | 42.89 mm² |
| 4ct Sapphire Cushion (8.88×8.88mm) | |
| 1.5ct Diamond Round (7.38×7.4mm) | |
| Difference: 65% (28.08 mm²) |
4ct Sapphire Cushion (8.88×8.88mm) has approx. 65% more face-up area than 1.5ct Diamond Round (7.38×7.4mm).
Popular comparisons:
- 4ct Sapphire (Cushion, Blue, 8.88 x 8.88) vs. 4ct Diamond (Cushion, White, 9.25 x 9.25)
- 4ct Sapphire (Cushion, Blue, 8.88 x 8.88) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 4ct Sapphire (Cushion, Blue, 8.88 x 8.88) vs. 3.5ct Diamond (Cushion, White, 8.85 x 8.85)
- 4ct Sapphire (Cushion, Blue, 8.88 x 8.88) vs. 3ct Sapphire (Cushion, Blue, 8.06 x 8.06)
- 4ct Sapphire (Cushion, Blue, 8.88 x 8.88) vs. 4ct Sapphire (Oval, Blue, 12 x 8)
- 4ct Sapphire (Cushion, Blue, 8.88 x 8.88) vs. 4ct Sapphire (Round, Blue, 9.49 x 9.49)
- 4ct Sapphire (Cushion, Blue, 8.88 x 8.88) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 4ct Sapphire (Cushion, Blue, 8.88 x 8.88) vs. 3ct Diamond (Cushion, White, 8.4 x 8.4)
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.