36ct Topaz (Princess, 18.08×18.08mm, Blue) vs 36ct Quartz (Princess, 19.9×19.9mm, Brown)
Quick summary: When looked from above (face-up position), 36ct Quartz (19.9×19.9mm, princess cut) appears 21% larger than 36ct Topaz (18.08×18.08mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 36ct Topaz (princess cut) |
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36ct Quartz (princess cut) |
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blue |
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| 18.08×18.08 mm | 19.9×19.9 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
36ct Topaz Princess (18.08×18.08mm, Blue)
and
36ct Quartz Princess (19.9×19.9mm, Brown)
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, Topaz will face-up smaller than Quartz for a given
carat weight, because it has higher specific gravity
(3.53 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.
| 36 Ct Topaz (Princess) | 36 Ct Quartz (Princess) | |
| 18.08×18.08 mm | vs | 19.9×19.9 mm |
| 326.89 mm² | 396.01 mm² |
| 36ct Topaz Princess (18.08×18.08mm) | |
| 36ct Quartz Princess (19.9×19.9mm) | |
| Difference: 21% (69.12 mm²) |
36ct Quartz (Princess, 19.9×19.9mm) has approx. 21% more face-up area than 36ct Topaz (Princess, 18.08×18.08mm).
Popular comparisons:
- 4.52ct Topaz (Princess, Blue, 9.27 x 9.27) vs. 1.21ct Diamond (Round, White, 6.93 x 6.93)
- 4.52ct Topaz (Princess, Blue, 9.27 x 9.27) vs. 0.65ct Citrine (Oval, Light Orange, 7.52 x 5.01)
- 0.9ct Topaz (Princess, Blue, 5.41 x 5.41) vs. 0.9ct Diamond (Cushion, White, 5.63 x 5.63)
- 2ct Topaz (Princess, Blue, 7.06 x 7.06) vs. 1ct Topaz (Princess, Blue, 5.6 x 5.6)
- 3ct Topaz (Princess, Blue, 8.08 x 8.08) vs. 4ct Topaz (Oval, Blue, 12 x 10)
- 1ct Topaz (Princess, Blue, 5.6 x 5.6) vs. 1ct Diamond (Princess, White, 5.51 x 5.51)
- 1ct Topaz (Princess, Blue, 5.6 x 5.6) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 2ct Topaz (Princess, Blue, 7.06 x 7.06) vs. 2ct Diamond (Princess, White, 6.94 x 6.94)
- 3.36ct Topaz (Princess, Blue, 9 x 7) vs. 2.22ct Tourmaline (Emerald, Dark Bluish Green, 9 x 6)