( w ) 
An Account 
Of a fmall Booh^ in French , entituled 
HISTOIRE DES JOYAUX. 
e r 
Des Principals Richeffes Orient et del Occident , 
par le Sr, Chapuzeau. 
T His Hiftory treats of Diamonds, Rubies, Emeraulds, Pearls* 
Coral, Bezoar, Yellow Amber, Amber-gris, Indigo, &c. 
Of Diamonds, The Author fhews :: 
i. The Places s whence they are taken 5 of which he finds but 
Five in all the Eafl-Indies , whereof friw are Rivers , vid. Saccadan 
in Borneo , and Nage in the Kingdom of Wengala •, at the bottom 
of both which, he faith , the Diamonds are found among the 
fand , after the waters , that fall as great Torrents from the 
Mountains , are run off $ and’ the three others are Mines , in the 
Kingdoms of Decan, Cancan, and Golconda. In this Relation he 
obferves, that the Diamonds which are found at the bottom of 
thofe Rivers, have the beft Water *, but thofe, in Mines , have of- 
ten Flams (which he imputes to the violent knockings of the Roc k) 
and Blebs , aferibed to the condition of the Earth or Sand they 
are found in, vid. when that is not pure, but fact idi or black. He 
takes alfo notice , that Diamonds are the heavieft of precious 
Stones , as Gold is of Mettals. 
2 . The Manner , how they are found and feparated 5 which is 
the fame in fubface, with that, deferibed Nam 1 p. 3 2 3 . 
3, The Price of them , according to the proportion of their 
weight 5 for which he gives this Rule. T ake , faith he , a Dia- 
mond of 10 Carats this number is to be fquared (which makes 
100.) then, if the Stone be dean, each Carat according to its 
perSaion , may be worth 40 to 60 Crowns; if it have no good 
wate;,br have a Bleb or Flaw, the Carat will not be worth but from 
10 to 30 Crowns. So multiplying the faid 100 by the number , 
which each Carat of fuch orfuchaStone may be worth, the pro* ; 
dud is the price of the $ tone,. 
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