Beads Per Inch

Bead Size1 "6"7"10"16"18"24"  
2 mm127487124200225300
3 mm8505883132144200
4 mm6374362100112153
5 mm53035508090120
6 mm42529426672100
8 mm3192231505676
10 mm3151825404561
12 mm2121420323648


Bugle Bead Sizes

SizeInchesMillimeters
11/82.5
23/165
31/47
43/89
51/212
203/420
25125
301 1/830
351 3/835
401 5/840


Seed Bead Sizes

Size #Approx Size (mm)Beads per Inch
11/02.121
8/03.111
6/049


Swarovski Shapes & Sizes

Style#ShapeSizes (mm)
5000round3 - 20
5301bicone3 - 12
5040rondel6 - 8
5200olive9/16
5601cube4 - 12
5500drop9/6 - 8/12
5520graphic12 &18
5523cosmic12
5556galactic11/19 & 13.5/24
5621twst14 7 18


Swarovski Flatback Sizes

ssmm
51.8
72.2
92.6
123
163.9
204.7
3030
3434


Swarovski Hotfix Sizes

ssmm
62
102.8
123
163.9
204.7
347.1


Birthstones

MonthStone
JanGarnet
FebAmethyst
MarchAquamarine
AprilDiamond
MayEmerald
JunePearl
JulyRuby
AugPeridot
SeptSapphire
OctOpal
NovCitrine
DecTurquoise


Anniversary Stones

AnniversaryStone
1Peridot
2Garnet
3Pearls
4Blue Topaz
5Sapphire or Pink Tourmaline
6Amethyst
7Onyx
8Tourmaline
9Lapis Lazuli
10Diamond Jewelry
15Ruby
20Emerald
25Silver Jubilee
30Pearl Jubilee
35Emerald
40Ruby
45Sapphire
50Golden Jubilee
55Alexandrite
60Diamond Jubilee
65Blue Spinel
70Sapphire Jubilee
75Diamond Jubilee


Astrological Stones

   
PiscesFeb 19 to Mar 20AMETHYST
AriesMar 21 to Apr 20BLOODSTONE
TaurusApr 21 to May 20SAPPHIRE
GeminiMay 21 to Jun 20AGATE
CancerJun 21 to Jul 22EMERALD
LeoJul 23 to Aug 23ONYX
VirgoAug 24 to Sep 22CARNELIAN
LibraSep 23 to Oct 23PERIDOT
ScorpioOct 24 to Nov 22AQUAMARINE
SagittariusNov 23 to Dec 20TOPAZ
CapricornDec 21 to Jan 19RUBY
AquariusJan 20 to Feb 18GARNET


Capacities/Equivalencies

1 inch25.4 mm
1 mm0.039 inches
10 mm1 cm
1 foot0.305 meters
1 meter3.28 feet
1 ounce28.35 gram
16 ounces1 pound
1 pound0.454 kg
1 kg2.2 pounds


Metric/English Conversions

Bead Size1 "6"7"10"16"18"24"  
2 mm127487124200225300
3 mm8505883132144200
4 mm6374362100112153
5 mm53035508090120
6 mm42529426672100
8 mm3192231505676
10 mm3151825404561
12 mm2121420323648


Shape Abbreviations

ANTAntique
BARBaroque
COCushion Octogon
CUSHCushion
DIADiamond
HEXHexagon
NAVNavette
OCTOctagon
OVOval
PSPearl Shape
RONDRondelle
RDRound
SQSquare
SQ QNTSquare Antique
SQ OCTSquare Octagon
TRITriangle


Misc. Abbreviations

DZDozen
FTFoot
GRGross
INInches
KGKilogram
LBPound
MMeter
MAMasse
MMMillimeters
OZOunces
PCPieces
PPPearl Plate
SSStone Size


Mohs' scale of mineral hardness

HardnessMaterialAbsolute Hardness
1Talc (Mg3Si4O10(OH)2)1
23
3Calcite (CaCO3)9
4Fluorite (CaF2)21
5Apatite (Ca5(PO4)3(OH-,Cl-,F-))48
6Orthoclase (KAlSi3O8)72
7Quartz (SiO2)100
8Topaz (Al2SiO4(OH-,F-)2)200
9Corundum (Al2O3)400
10Diamond (C)1500


Mohs scale ratings for 144 types of gemstones

Bead Size1 "6"7"10"16"18"24"  
2 mm127487124200225300
3 mm8505883132144200
4 mm6374362100112153
5 mm53035508090120
6 mm42529426672100
8 mm3192231505676
10 mm3151825404561
12 mm2121420323648


Bail Size Chart

XSmall Small Med Large XLarge
4139 13mm x
4139 14mm x
4139 20mm x
4439 14mm x x
4439 20mm x
4439 30mm x
6000 11mm x
6000 13mm x
6000 18mm x
6000 28mm x
6002 15mm x
6010 11mm x
6010 13mm x
6015 13mm x
6015 18mm x
6015 21mm x
6015 50mm x x
6059 18mm x
6090 16mm x
6090 22mm x
6100 24mm x
6202 14mm x
6202 18mm x
6202 28mm x x
6202 40mm x x
6227 18mm x
6460 18mm x
6620 20mm x
6670 18mm x
6670 24mm x
6670 50mm x
6721 16mm x
6721 20mm x
6721 28mm x
6722 20mm x
6744 12mm x
6744 14mm x
6744 18mm x
6754 18mm x
6860 12mm x
6860 20mm x
6860 38mm x
6866 20mm x