(4^9) 
df^^ Amount 
Of a [matt Boel^ in French ^ Emituled 
HISTOIRE DBS JOYAUX. 
E T 
DCS Prmipaks Richej[ts ds V Orient & de f OccidenCp 
far k Sr. Chi^yxt^m. 
THis HiftcHy treats of Diamonds, Rubies^Emeraulds, Pearls^ 
Coral, Bezoar, Yellow Ambers A mber-gris. Indigo^ (^c, 
of Diamonds ^ the Author fliews ;: 
1. The Places y whence they sire takf n 5l.of which he finds but 
Five in all the Eafl- Indies, whtxtoi tWQ are Rivers jV'id. Saccadm 
in BorneQ^md iV^^^in the Kingdoms of Bengala-j at the bottom of 
both which, the Diamonds are found among the fand^ 
after the waters, that fail a? great Torrents from the Mountains 5 
are run off ^ and the three others are Mines ^ in the Kingdoms of 
Decan Cuncan^ and Golconda. In this R elation he obferve^^ that 
the Diamonds which are found at the bottom of thofe Rivers 5 
have the beft Water but thofe, in Mines , have often Flaws 
(which he imputes to the violent ktipckings of the Rock ) and 
iiV^j,, afcribed to the condition of the Earth or Sand they are 
found in, 'L'/ij. when that js not puve^ but fatMi or black. Me 
takes alfo notice ^ that Diamonds are xb^heavieii of precious 
Stones^ as Gold is of Mettals, 
2. The Manner:^ how they arS found ^nd feparated 5 which is 
■ihefame infubftance^with that, defcribe4 
3. The Price of them, according to the prppprtion of their 
weight-, for which he gives this Rule. Take^ faith he^ a Dia» 
mond ot 10 Carats : this number is to be fquared (which makes 
ido ) then, if the Stone be cleaiij^ach Carat according to its 
perfedioo, may be worth 40 to, Crowns if it have no good 
water,. or have a Bleb pr Flaw, the Carat will not be worth but 
from 10 to 30 Crowns. So multiplying the^faid.joo. by the num- 
ber, which each Carat of fuch or fuch a. Stone may be word?, the 
produd is the price of .the Stone^ 
For 
