8.5ct Diamond (Round, 13.27×13.27mm, White) vs 8.5ct Cubic Zirconia (Round, 11.01×11.01mm, White)
Quick summary: When looked from above (face-up position), 8.5ct Diamond (13.27×13.27mm, round cut) appears 45% larger than 8.5ct Cubic Zirconia (11.01×11.01mm, round cut). See below how they compare side-by-side on a ring and finger.
| 8.5ct Diamond (round cut) |
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8.5ct Cubic Zirconia (round cut) |
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white |
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| 13.27×13.27 mm | 11.01×11.01 mm | |
| actual size | ||
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Actual size is set for screen
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Ring:
Skin tone:
Ring width: 3.0 mm
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64 mm |
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Actual sizes of
8.5ct Diamond Round (13.27×13.27mm, White)
and
8.5ct Cubic Zirconia Round (11.01×11.01mm, 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, Cubic Zirconia will face-up smaller than Diamond for a given
carat weight, because it has higher specific gravity
(5.65 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.
| 8.5 Ct Diamond (Round) | 8.5 Ct Cubic Zirconia (Round) | |
| 13.27×13.27 mm | vs | 11.01×11.01 mm |
| 138.3 mm² | 95.21 mm² |
| 8.5ct Diamond Round (13.27×13.27mm) | |
| 8.5ct Cubic Zirconia Round (11.01×11.01mm) | |
| Difference: 45% (43.09 mm²) |
8.5ct Diamond (Round, 13.27×13.27mm) has approx. 45% more face-up area than 8.5ct Cubic Zirconia (Round, 11.01×11.01mm).
Popular comparisons:
- 8.5ct Diamond (Round, White, 13.27 x 13.27) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 8.5ct Diamond (Round, White, 13.27 x 13.27) vs. 4.12ct Diamond (Round, White, 10.42 x 10.42)
- 8.5ct Diamond (Round, White, 13.27 x 13.27) vs. 10ct Diamond (Round, White, 14 x 14)
- 8.5ct Diamond (Round, White, 13.27 x 13.27) vs. 9ct Diamond (Round, White, 13.52 x 13.52)
- 8.5ct Diamond (Round, White, 13.27 x 13.27) vs. 15.61ct Diamond (Oval, Yellow, 21.53 x 12.92)
- 8.5ct Diamond (Round, White, 13.27 x 13.27) vs. 9.15ct Diamond (Round, White, 13.6 x 13.6)
- 8.5ct Diamond (Round, White, 13.27 x 13.27) vs. 8ct Diamond (Marquise, White, 20.78 x 10.39)
- 8.5ct Diamond (Round, White, 13.27 x 13.27) vs. 12.84ct Diamond (Cushion, Yellow, 15.69 x 11.22)
- 0.1ct Diamond (Round, White, 3.02 x 3.02) vs. 0.15ct Diamond (Round, White, 3.45 x 3.45)