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Quick
Reference Chart / Metric to Standard Measurements |
Size
in MM |
Size
in CM |
Size
in Inches |
4
mm |
.4
cm |
1/8
inch |
5
mm |
.5
cm |
3/16
inch |
6
mm |
.6
cm |
just
under 1/4 inch |
7
mm |
.7
cm |
just
over 1/4 inch |
8
mm |
.8
cm |
5/16
inches |
9
mm |
.9
cm |
just
under 3/8 inches |
10
mm |
1.0
cm |
just
over 3/8
inches |
12
mm |
1.2
cm |
just
under 1/2 inch |
15
mm |
1.5
cm |
just
under 5/8 inch |
20
mm |
2.0
cm |
just
over 3/4 inch |
30
mm |
3.0
cm |
just
under 1-1/4 inches |
40
mm |
4.0
cm |
just
over 1-1/2 inches |
50
mm |
5.0
cm |
2
inches |
75
mm |
7.5
cm |
just
under 3 inches |
Gemstone Trivia
Heart - Aventurine, Calcite, Pink Chalcedony, Carnelian, Rhodonite, Rose Quartz, Topaz, Turquoise
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