1 Ct Quartz (Round) |
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1 Ct Diamond (Round) |
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orangey red |
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| 6.86×6.86 mm | 6.5×6.5 mm | |
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Actual size is set for screen
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Ring width: 3.0 mm
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64 mm |
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Actual sizes of
1ct Quartz Round (6.86×6.86mm, Orangey Red)
and
1ct Diamond Round (6.5×6.5mm, 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 and high-end gemstone jewelry, look at:
James Allen → quality gemstones (Rubies, Sapphires, Emeralds) and especially Diamonds
Blue Nile → gemstones and diamonds, birthstones jewelry
Brian Gavin → nice selection of gemstones, top-end signature diamonds
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.
| 1 Ct Quartz (Round) | 1 Ct Diamond (Round) | |
| 6.86×6.86 mm | vs | 6.5×6.5 mm |
| 36.96 mm² | 33.18 mm² |
| 1ct Quartz Round (6.86×6.86mm) | |
| 1ct Diamond Round (6.5×6.5mm) | |
| Difference: 11% (3.78 mm²) |
1ct Quartz Round (6.86×6.86mm) has approx. 11% more face-up area than 1ct Diamond Round (6.5×6.5mm).
Popular comparisons:
- 1ct Quartz (Round, Orangey Red, 6.86 x 6.86) vs. 1ct Amethyst (Round, Violet, 6.86 x 6.86)
- 1ct Quartz (Round, Orangey Red, 6.86 x 6.86) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Quartz (Round, Orangey Red, 6.86 x 6.86) vs. 11ct Amethyst (Emerald, Violet, 16.29 x 12.07)
- 1ct Quartz (Round, Orangey Red, 6.86 x 6.86) vs. 11ct Apatite (Emerald, Green, 15.3 x 11.33)
- 1ct Quartz (Round, Orangey Red, 6.86 x 6.86) vs. 1ct Peridot (Round, Yellowish Green, 6.34 x 6.34)
- 1ct Quartz (Round, Orangey Red, 6.86 x 6.86) vs. 1ct Emerald (Cushion, Green, 6.37 x 6.37)
- 1ct Quartz (Round, Orangey Red, 6.86 x 6.86) vs. 1ct Spinel (Round, Red, 6.19 x 6.19)
- 1ct Quartz (Round, Orangey Red, 6.86 x 6.86) vs. 1ct Topaz (Round, Red, 6.23 x 6.23)
Enter your screen size (diagonal)
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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.