8.5ct Quartz (Oval, 17.7×11.8mm, White) vs 8.5ct Diamond (Oval, 16.56×11.04mm, White)
Quick summary: When looked from above (face-up position), 8.5ct Quartz (17.7×11.8mm, oval cut) appears 14% larger than 8.5ct Diamond (16.56×11.04mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 8.5ct Quartz (oval cut) |
vs
|
8.5ct Diamond (oval cut) |
|
white |
|
|
| 17.7×11.8 mm | 16.56×11.04 mm | |
| actual size | ||
|
|
|
|
|
||
Actual size is set for screen
|
Ring:
Skin tone:
Ring width: 3.0 mm
|
|
64 mm |
|
|
|||||||||||||||||
|
|||||||||||||||||||||
Actual sizes of
8.5ct Quartz Oval (17.7×11.8mm, White)
and
8.5ct Diamond Oval (16.56×11.04mm, 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, Diamond will face-up smaller than Quartz for a given
carat weight, because it has higher specific gravity
(3.52 vs. 2.65 - this means it's "heavier" compared to Quartz 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.
| 8.5 Ct Quartz (Oval) | 8.5 Ct Diamond (Oval) | |
| 17.7×11.8 mm | vs | 16.56×11.04 mm |
| 171.27 mm² | 149.91 mm² |
| 8.5ct Quartz Oval (17.7×11.8mm) | |
| 8.5ct Diamond Oval (16.56×11.04mm) | |
| Difference: 14% (21.36 mm²) |
8.5ct Quartz (Oval, 17.7×11.8mm) has approx. 14% more face-up area than 8.5ct Diamond (Oval, 16.56×11.04mm).
Popular comparisons:
- 1ct Quartz (Oval, Orangey Red, 8 x 6) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 2ct Quartz (Oval, Orangey Red, 10.94 x 7.29) vs. 15ct Quartz (Marquise, Orangey Red, 27.92 x 13.96)
- 0.5ct Quartz (Oval, Orangey Red, 6.89 x 4.59) vs. 0.5ct Topaz (Oval, Blue, 6.26 x 4.17)
- 5ct Quartz (Oval, Orangey Red, 14.84 x 9.89) vs. 5ct Amethyst (Round, Violet, 11.73 x 11.73)
- 0.5ct Quartz (Oval, Orangey Red, 6.89 x 4.59) vs. 1ct Morganite (Oval, Light Purple, 8.63 x 5.75)
- 15ct Quartz (Oval, Light Blue, 21.39 x 14.26) vs. 15ct Quartz (Asscher, Light Blue, 15.16 x 15.16)
- 8ct Quartz (Oval, Light Orange, 17.36 x 11.57) vs. 16ct Citrine (Oval, Light Orange, 21.87 x 14.58)
- 13.43ct Quartz (Oval, Light Green , 18 x 13.2) vs. 11.37ct Tourmaline (Cushion, Light Orange, 14.5 x 12.2)