A treatise on diamonds and pearls. In which their importance is considered: and plain rules are exhibited for ascertaining the value of both; and the true method of manufacturing diamonds / [David Jeffries].

  • Jeffries, David
Date:
1751
Catalogue details

Licence: Public Domain Mark

Credit: A treatise on diamonds and pearls. In which their importance is considered: and plain rules are exhibited for ascertaining the value of both; and the true method of manufacturing diamonds / [David Jeffries]. Source: Wellcome Collection.

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    injury, by being fubje£t to a capricious and indeterminate va- luation ; and the fuperlative beauty of Diamonds has been much debafed* To countenance a work cal¬ culated to promote a general be¬ nefit, it is humbly apprehended, will not be deemed unworthy the condefcenfion of a Crowned Heady as thefe Jewels conftitute fo large a part of publick wealth j and, as they are, and have oeen in paft ages, the chief or¬ naments of great and diftin- guifiied perionages, in moil parts of the world, A 3 That