GOLD PURITY CERTIFICATIONS

SAO Certified

Singapore Assay Office (SAO) is an independent test laboratory that test precious metals such as gold, silver, platinum and palladium purity since 1975. It is Singapore's only recognised and independent body that tests and certifies precious metal articles.

When you buy from Princess Gem, you are buying authentic gold and silver jewellery. All Princess Gem products are made out of sterling silver, gold or gold alloy and our products have been tested by the Singapore Assay Office (SAO) to ensure that the gold fineness meets Singapore’s strict standards.

SINGAPORE ASSAY OFFICE (SAO)
GOLD & SILVER TEST REPORT

princessgemsingaporeassayofficecertificate

 

THE STANDARD OF GOLD FINENESS 

The standards of fineness are defined by:
Karat (K)
which represents 1/24 part of pure gold or

Numerical mark 
Which represents the number of parts by weight of pure gold expressed in parts per thousand

NUMERICAL VALUE
REPRESENTATION
 KARAT VALUE 
REPRESENTATION
750  18K 
(75% Pure Gold)
583  14K
(58.3% Pure Gold)
375  9K
(37.5% Pure Gold)