1 Ct Tourmaline (Round) |
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1 Ct Diamond (Round) |
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light green |
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| 6.51×6.51 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 Tourmaline Round (6.51×6.51mm, Light Green )
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?
JamesAllen → high-quality Diamonds, high-end jewelry and competitive prices. Highly recommended.
Amazon → usually offers a good selection from many different vendors. Worth a check.
Face-up Size
All things being equal, Diamond will face-up smaller than Tourmaline for a given
carat weight, because it has higher specific gravity
(3.52 vs. 3.1 - this means it's "heavier" compared to Tourmaline 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 Tourmaline (Round) | 1 Ct Diamond (Round) | |
| 6.51×6.51 mm | vs | 6.5×6.5 mm |
| 33.29 mm² | 33.18 mm² |
| 1ct Tourmaline Round (6.51×6.51mm) | |
| 1ct Diamond Round (6.5×6.5mm) | |
| Difference: 0.3% (0.11 mm²) |
1ct Tourmaline Round (6.51×6.51mm) has approx. 0.3% more face-up area than 1ct Diamond Round (6.5×6.5mm).
Popular comparisons:
- 1ct Tourmaline (Round, Light Green , 6.51 x 6.51) vs. 1ct Sapphire (Round, Blue, 5.98 x 5.98)
- 1ct Tourmaline (Round, Light Green , 6.51 x 6.51) vs. 1ct Kunzite (Emerald, Light Violet, 6.9 x 5.11)
- 1.5ct Tourmaline (Round, Light Red, 7.45 x 7.45) vs. 1.5ct Sapphire (Round, Light Blue, 6.84 x 6.84)
- 2ct Tourmaline (Round, Violet, 8.2 x 8.2) vs. 2ct Tourmaline (Oval, Violet, 10.38 x 6.92)
- 1ct Tourmaline (Round, Violet, 6.51 x 6.51) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1.41ct Tourmaline (Round, Light Red, 7.3 x 7.3) vs. 1.58ct Tourmaline (Round, Light Red, 7.58 x 7.58)
- 1ct Tourmaline (Round, Bluish Green, 6.51 x 6.51) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 0.57ct Tourmaline (Round, Violet, 5.4 x 5.4) vs. 1ct Sapphire (Round, Blue, 5.98 x 5.98)
- 1ct Tourmaline (Round, Violet, 6.51 x 6.51) vs. 1ct Amethyst (Cushion, Light Purple, 6.41 x 6.41)
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.