Golden Rules


Weight

1 oz. troy :

= 31.10 grams

32.15 oz. troy :

= 1 kilo

100 oz. troy :

= 3.11 kilos

(Comex Contract)

32,150 oz. troy :

= 1 metric ton

3.75 oz. troy :

= 10 tolas (Indian sub-continent)

1.2 oz. troy :

= 1 tael (Hong Kong)

0.47 oz. troy :

= 1 baht (Thailand)

Purity

The Purity of gold is described by its fineness (parts per 1,000) or by the karat (or carat in Europe) scale.

Fine Gold :

karat

1,000 :

= 24

   995 :

(London good delivery) :

   916 :

= 22 (customary for most coin)

   750 :

= 14

   417.7 :

= 10

   375 :

=   9

   333.3 :

= 8 (normally lowest acceptable purity in jewelry)

Source: The New World of Gold by Timothy Green Walker and Company; 720 Fifth Avenue; New York, NY 10019


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