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Ethics and Integrity

Testimonials

Hi, I just happened across your site while getting ideas for my wire wrap gemstones and sea glass.

The fact that you give away information, don’t insist personal information, has bought my business already.

To add to the joy (yes, I’m prone to hyperbole but I’m absolutely enchanted with your business model), you add stone treatment information rather than burying it somewhere.

It’s very important to me to be able to tell my customers the what’s been done to their stones, the quality, source and composition of the gems they buy.

I believe I’m the only vendor to have the FCC and AGIA disclosure booklets available at any festival I’ve attended.

You have a customer now and, if OK, I will use your page on stone treatments, with proper attribution of course, as a handout at my next festival the end of this month.

Brightest blessings,

Liz

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Stone Treatment Codes

(B) block
(C) coated
(D) dyed
(E) enhanced
(H) heated
(I) irradiation
(F) infused
(M) man made - synthetic
(N) natural
(O) oiled
(P) pressed
(S) stabilized

Bead Size Chart - Millimeters mm to Inches

 

Converting mm to inches

Some people new to gemstones have never come across the metric measuring system often used in jewelry making. Even some of us who have been at it for a long time need help figuring out just how big 11mm is.

 

Dr Karen Meador made this chart for us and you to help us with these conversions. Feel free to use this chart on your site as long as you link to Karen and Magpie Gemstones.

 

Conversion of Units

25.4 millimeters (mm) = 1 inch

1 millimeter is less than 1/16 inch

To Convert Inches to Millimeters: Multiply Inches x 25.4

To Convert to Millimeters to Inches: Multiply millimeters x .03937



Conversion Chart: Millimeters to Inches

 

Mm

Inches in Decimals

*Inches in Fractions

1mm

0.04 inches

Less than 1/16 inch

 

2mm

0.08 inches

Greater than 1/16 inch & less than 1/8 inch

3mm

0.12 inches

Greater than 1/16 inch & less than 1/8 inch

4mm

0.16 inches

Greater than 1/8 and less than 3/16

5mm

0.2 inches

Greater than 3/16 and less than 1/4

6mm

0.24 inches

Greater than 3/16 and less than 1/4

7mm

0.28 inches

Greater than ¼ and less than 5/16

8mm

0.32 inches

Greater than ¼ and less than 5/16

9mm

0.35inches

Greater than 5/16 and less than 3/8

10mm

0.40 inches

Greater than 3/8 and less than 7/16

12mm

0.47 inches

Greater than 7/16 and less than 8/16

14mm

0.55 inches

Greater than ½ and less than 9/16

16mm

0.63 inches

Greater than 5/8 & less than 11/16

18mm

0.71 inches

Greater than 11/16 and less than 3/4

 

*The third column of this conversion chart is offered to help anyone who thinks more clearly using fractions than using decimals.

 

Approximate Number of Round Beads on a 16” Strand

 

2mm

3mm

4mm

6mm

8mm

10mm

12mm

203

136

100

67

50

41

34

 

Every inch is 25mm so times the number of inches by 25mm and you have how long the strand is in millimeters. Then divide by the width of the bead.

Karen Meador

 

Madeline Hoffman also offered up her chart that she uses for number of beads on a strand.

Number of beads in 14, 15, and 16 inch strands for 2-25mm beads:

 

Bead size

# of beads in 14" strand

# of beads in 15" strand

# of beads in 16" strand

mm

355

381

406

2

177

190

203

3

118

127

135

4

88

95

101

5

71

76

81

6

59

63

67

7

50

54

58

8

44

47

50

9

39

42

45

10

35

38

40

11

32

34

36

12

29

31

33

13

27

29

31

14

25

27

29

15

23

25

27

16

22

23

25

17

20

22

23

18

19

21

22

19

18

20

21

20

17

19

20

21

16

18

19

22

16

17

18

23

15

16

17

24

14

15

16

25

14

15

16

**Contributing authors are noted in the articles they wrote. All articles are copyright. You can reprint these articles as long as the original author is sited and a link to this website is included. The name Magpie Gemstones must be used as the hypertext.

Red Bow

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