X3& Df file urn 
pour pncc, bcetng to accompattp a Diamono 
of one Duilafc,kap that p?iee in pour memo* 
rtc , anD lake on tbe Eubic botu bigge It is, 
anD tubat tuaigbt the DtamonDbatb, tuitb 
tbeDcptbtubicbitlboulDbc compared Unto: 
ants alfo if it bee Kill rain anD bngromiD, con* 
fiber botu much it muft be taken atnap in tbe 
grinoing, anD botu bigge it tntll be tuben it is 
fquareo anD fafljioncD: tubicb bauingDone, 
anDknotoing tbe tuaigbt of tbe DiamonDit 
(ball accompanp, pou fljal tben take as mucb 
mo?etuaigbf,f multiplie it tuith tbe tuaigbt 
pou baue alreaDie founD,tbat it fboulo bee ac-- 
companpmg a diamond of one Curtate, anD 
tbe pjobuction thereof, is tbe baletu of fucb 
a Hubtc: to conclube, tuben pou baue Deters 
inineD tubat tbe tuaigbt of a DiamonD is, 
that it map accompanie,pou (ball make pour 
account as tfittuere a DtamonD, anD tbat 
tubicbp’occeDetb of tbe tuaigbt, pou (ball 
multiplie tuitb tbe p?icc tubicb pou finDe it to 
be tuo?tb, to bap companie tuitb a DiamonD 
of one Mate: tbe IRubics tbat are bngrouD 
anD can be no tables# is to be bnDerttcoD tbat 
, tbep are better in tbat forte tben otberioife: 
Df tbefe pou mud confiDer tbe p?ice after tbe 
manner of tbe Diamond tubicb bee map ac* 
companie, f tbe beigbt o? Depth of tbe ftone, 
after that the colour, gcoDnes anD faults as it 
falletb out, anD make tbe account 05 recko* 
sting thereof as of Rubies tuitb fables, anD 
grounD,anD alfo of tbe DiatnonDs.Dbere are 
alfo Diamonds that are not cut fquare in fa* 
Mcs, but baue a gtoD fafijion fo? to fet in anie 
3efuell, as being pointeD tuitb tb?a comers, 
harts,anD fucb like fo?ts,tberebp to biDe tbeir 
faultes, anD are maDe in tbat fort to bolaetbe 
greatnes anD tuaigbt thereof, anD pet one of 
tbefe being perfect in f bat manner, are not fo 
mucb tuortb as tbofe tuitb fables: fo? tbat 
manp times tbep baue tco mucb tbicknes bn* 
Derneatb^btcb maketb tbe tuaigbt not to a* 
npp?oftt, butratberhurt: tubicb if it lucre 
iubolc anD tbin tjnDerneatb Waning outtuarD* 
ip all other perfectios,(t tuere as much tuortb 
as a DiamonD,tbat bath a table being tbickc 
tuitb bis tubole Depth, tubicb is 46 , Duckets 
being of one Duilafe: fo that tuben pou baue 
anp of tbefe pou (ball Dcale tuitb them, as 
tuitb tbe other, that is to confiDer,tubat tbep 
map be tuortb, being of one Dutlatc 9 
anD make pour reckoning, as tuitb 
tbe others afo?cfaiD, 
The 1. Books. 
The poChapter* 
Of the oriental & old Emeralds, for that 
thofe that are found in the Iflandes of 
the Spanish Indies, are not yet tried 
nor refolued vpon whether they be fine 
or not. 
l£c olD SHetueilers fap, 
tbat if a man can finDe 
an Omeralo perfect in 
al points, as in colour, 
clearenes,faibton, anD 
tbicknes, tbat fucb an 
OmcralD is tuortb 3. 
Diamonds, tubicb ac# 
co?Dingto our acconntlbolD be 12 o.Duckefs, 
anD 3 belaeue berilp that it is mod true . but 
as pet there tuas neuer anp founD, cptber lit# 
tie 0 ? great that baD all tbofe perfections, 
there are fomc founD that are perfect in colour 
andfaftjton, bttfofclearenes anD cleanenes 
not one, fo? tbep baue altuaies fome faftincs 
tuitbin them like grane beatbs anD fucb like, 
tuberefo?e f 0 make our reckoning, tuee tuill 
fap,that an OmcraulD of cornon fo?t, eftima* 
tion,anD perfection's tuo?tb 8 o.Duckefs, be# 
ingoftbebignes, as tbat bee map compare 
tuitb a Diamond of one Dutlate: fo? altbogb 
it baue certains grarte bcarbes tuitbinit, if 
tbep bee not tco manp it is neucrtbelefle eft a# 
meb perfect, bauing all tbe other perfections 
that it ftjoulD baue: tberefo?e tuben pou baue 
an CmeralD f 0 balue iubetber it be bngroud 
0 ? a table, firft pou muft confiDer tbe great# 
ncs,anD tubat tuaigbt a E>tamonD Iboulo bee 
that muft compare tuitb it, thentoketip# 
pon tbe faults 0 ? gooDnes that it bath , anD 
confiDering tuell tubatfucb an CmraulD ftjolS 
be tuo?tb,being no greater than a Diamono 
of one Duilate,pou muft make pour account 
as tuitb Mubtes : tubicbis,faketbetuaigbf 
of tbe DiamonD,fobereunfo pou compare if, 
anD multipltc that tuitb as much mo?e, anD 
tbe p?oDuctton thereof, multiplie bp tbe p?iee 
tbat pou baue eftccmcD the one Duilate to 
be tuo?tb, anD tbe p?oDuction is the balelu of 
fucb an (SmeraulD, anD in tbe fame fo?f ftjall 
pou Doc tuitb all tbe Cmcraulos pou baue f 0 
halctu,tubetber tbep be great 0 ? fmall, gooO 
0 ? baD,altuaies confiDering tbefaulfs 0 ? gcoD# 
nefte it map baue, and after that efteeme its 
anD fet the p?tce,anD if there be half a Duilate 
o?gratncs in the tuaigbt of tbe DiamoD poit 
compare it Unto, then pou muft make pour 
account bp balues anD graincs, as 3 faidebc# 
fo?e of Diamonds anD Kubtcs. Mben pou 
foill Ualetn anp ft ones, pou muft looke tuell 
hpontbem, anD confiDer if it be a Diamono, 
of tubat tuafer anD fafbiomt is, if if bath 
