7.5ct Diamond (Marquise, 20.34×10.17mm, White) vs 7.5ct Cubic Zirconia (Marquise, 16.96×8.48mm, White)
Quick summary: When looked from above (face-up position), 7.5ct Diamond (20.34×10.17mm, marquise cut) appears 44% larger than 7.5ct Cubic Zirconia (16.96×8.48mm, marquise cut). See below how they compare side-by-side on a ring and finger.
| 7.5ct Diamond (marquise cut) |
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7.5ct Cubic Zirconia (marquise cut) |
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white |
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| 20.34×10.17 mm | 16.96×8.48 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
7.5ct Diamond Marquise (20.34×10.17mm, White)
and
7.5ct Cubic Zirconia Marquise (16.96×8.48mm, 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.
| 7.5 Ct Diamond (Marquise) | 7.5 Ct Cubic Zirconia (Marquise) | |
| 20.34×10.17 mm | vs | 16.96×8.48 mm |
| 146.87 mm² | 102.11 mm² |
| 7.5ct Diamond Marquise (20.34×10.17mm) | |
| 7.5ct Cubic Zirconia Marquise (16.96×8.48mm) | |
| Difference: 44% (44.76 mm²) |
7.5ct Diamond (Marquise, 20.34×10.17mm) has approx. 44% more face-up area than 7.5ct Cubic Zirconia (Marquise, 16.96×8.48mm).
Popular comparisons:
- 7.5ct Diamond (Marquise, White, 20.34 x 10.17) vs. 12ct Diamond (Emerald, White, 15.3 x 11.33)
- 0.3ct Diamond (Marquise, White, 7 x 3.5) vs. 0.4ct Diamond (Round, White, 4.79 x 4.79)
- 0.2ct Diamond (Marquise, White, 6.08 x 3.04) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Diamond (Marquise, White, 10.38 x 5.19) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.5ct Diamond (Marquise, White, 8.24 x 4.12) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.3ct Diamond (Marquise, White, 6.96 x 3.48) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 5ct Diamond (Marquise, White, 16.85 x 9.12) vs. 5ct Diamond (Marquise, White, 16.59 x 8.86)
- 1ct Diamond (Marquise, White, 10.38 x 5.19) vs. 1ct Diamond (Emerald, White, 6.68 x 4.95)
- 0.05ct Diamond (Marquise, White, 3.82 x 1.91) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)