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Ring Measurement
Methods |
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Wide banded Poesy Rings |
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The Mandrel |
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Ring Size - How we do it |
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How our Poesy Rings are made |
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Ring Size Standards |
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Change in finger size |
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Environment |
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How to measure a ring /
UK Size Conversion Chart |
Ring
Measurement Methods - There are two ways to determine the size of a
ring:
The Center Line Method:
Traditional jewelers measure wide banded rings by estimating where the
center line
of the band falls on a mandrel. The size is not determined by the
True Diameter of the ring, but rather by where the jeweler
estimates the middle of the ring falls. This method
automatically accounts for the fact that wider rings sit higher up on the
finger and so feel tighter when worn. However "creative, or fudge
factor sizing," while not a problem for in-person customers, is
frustrating for online shoppers who have nothing to go on, except a
measurement.
The True Diameter Method: This is the
method we use. A ring's size is determined by it's True Diameter. This is the most
consistent method to use while shopping online. When shopping for
wider banded rings, simply adjust the size you purchase, according to the
band-width of the ring.
What difference does it make how my ring is sized?:
You get different results - If the ring is 3mm wide or less,
the difference is negligible. But the wider the band, the more
dramatic the difference in size determination. Say you take a cigar band
ring and compare it to a diamond engagement ring. Both
rings are a True Diameters of 18mm. A traditional jeweler would say that the cigar band
ring is a size 6 1/2 and the engagement ring is a size 7, yet to us, as
well as our manufacturers, these rings are the same size 7.
Consider the job of a
mandrel manufacturer - How would this person know how large or small
to make the mandrel in the first place? How would they know where to
put the lines, and what ring size to label them? The manufacturer
would use the True Diameter method because it yields consistent results.
This discrepancy in the way rings are measured, is why
we cannot accept responsibility for the size determinations of other
jewelers. |
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Wide Banded Rings - The wider the
band, the larger the size you'll need for a comfortable fit. If you
are normally a size 7, you will most definitely require a larger size, to
fit comfortably into our Anam Cara,
Carpe Deim,
Paul Klee,
Ot Dushi and
other wide-banded
rings.
A wide banded ring is any ring measuring 4mm or above. |
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The Mandrel - A
mandrel is the tool shaped like a stick, used to measure a ring. Slide
the ring on, see where it falls and that's your size. Easy right?
Nope. Mandrels are made from plastic, stainless steel, and various other
materials. Plastic mandrels are notorious for measuring up to 1/4 size
different than their stainless steel counterparts. Mandrels from other
countries, especially Japan, are also known for variance when compared to
American mandrels. To make matters worse, jewelers use mandrels
differently to measure. Some use the Center Line technique, while others
use the True Diameter technique. When shopping online, the True Diameter
technique will provide you with the most accurate results when combined with
allowance for band-width.
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Ring Size:
How we do it
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We understand that
shopping online
for a ring, especially a hand-made ring, presents
some interesting challenges. So, we
ask the manufacturer to measure each ring prior to shipping to us.
Then, we measure each ring
before entering it into inventory, and then again before shipping
to you.
We use the same brand and style number mandrel as the manufacturer, to
measure. This is one way we'd like to assure you, you're going to receive
the ring/size you request. |
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How our products are made -
Our products are made by hand using the
centuries old, lost-wax process. The lost-wax process starts with a
carved wax replica of your ring. The wax is pressed with clay and
fired. During the firing process, the wax melts and leaves a cavity
in the clay shaped like the ring. Your choice of sterling silver,
Gold or Platinum is poured in. The piece is broken from the mold,
and polished. |
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Ring
size Standards -
Unfortunately, there is no world-wide
standard for ring sizes. But using our guide above and taking into
account the width of the band, will provide you with the best place to
begin when choosing a ring size. |
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Change in finger size - The human
finger may change in size by as much as 3/4 of a whole ring size throughout
the course of the day. Human fingers are larger in the early morning,
than in the late afternoon. Also, changes in
environment, diet, arthritis, salt intake, medications and pregnancy can
effect your ring size.
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Environment - When it's cold, our fingers
constrict and rings feel loose. When it's hot/muggy, our fingers
expand. This is the body's way of regulating temperature. If
you are in a humid environment, or plan to wear your rings without ever
taking them off, you'll want to consider this as well. |
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How to measure a ring - Place the
ring flat on a tabletop and place a tape measure across the widest point.
Then compare with the chart below. SEE IMPORTANT NOTES BELOW |
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US Ring Size |
Inside Diameter begins @ (mm) |
UK Ring Size |
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4 |
14.9 |
H 1/2 |
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4 1/2 |
15.3 |
I 1/2 |
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5 |
15.6 |
J 1/2 |
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5 1/2 |
16.1 |
L |
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6 |
16.5 |
M |
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6 1/2 |
16.9 |
N |
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7 |
17.3 |
O |
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7 1/2 |
17.7 |
P |
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8 |
18.2 |
Q |
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8 1/2 |
18.5 |
Q 1/2 |
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9 |
18.9 |
R 1/2 |
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9 1/2 |
19.4 |
S 1/2 |
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10 |
19.8 |
T 1/2 |
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10 1/2 |
20.2 |
U 1/2 |
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11 |
20.6 |
V 1/2 |
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11 1/2 |
21.0 |
W 1/2 |
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12 |
21.5 |
X 1/2 |
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12 1/2 |
21.9 |
Z |
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13 |
22.2 |
Z1 (13 1/4) |
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13 1/2 |
22.6 |
Z2 (13 3/4) |
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Since you are not able
to try the ring on prior to purchase, please be prepared to make an
exchange. The wider the band, the
larger the size you will need, REGARDLESS of the diameter.
Please note that
measurements provided are intended to be used as a GUIDE, to get
you CLOSE.
SapphireLane assumes no liability
if your ring does not fit. |
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