Diamond key | Certified Gemstone | Globalgemology

Diamond keys – Globalgemology

Ideal Cuts

FROM CAROB TREE TO DIAMONDS

each carob tree seed weight exactly 0,2g
the word carat comes from Carob
1 carat (ct) = 0, 2 gram= 100 points

DIAMONDS CUTTING PROCESS

ROUGH ROCK

SAWING

BRUTING

BLOCKING

BRILLIANTERING

DIAMONDS CUTTING HISTORY

POLISHING OF THE OCTAEDRE WEAK POINTS

1300-1400

TABLE CUT

1500

8*8 CUT

1600

MAZARIN CUT

1600

PERUZZI CUT

1700

OLD MINE CUT

1800

OLD EUROPEAN CUT

1900

MODERN CUT

IDEAL TO FINE CUT

PERFECT VISUAL BALANCE

IDEAL HEARTS AND ARROWS DIAMOND

VIEW FROM THE CULET REFLECTION CREATES A 8 SYMETRICAL HEARTS WITH THE PAVILLION

FROM THE FACE UP POSITION 8 RADIATING ARROWS ARE OBSERVED WITHIN THE CROWN

DIAMONDS CUTTING PROCESS

VERY SHALLOW

SHALLOW

IDEAL

DEEP

VERY DEEP

POOR FISH EYE APPEARS DARK

GOOD

EXCELLENT

POOR

VERY POOR NAIL HEAD APPEARS SMALL

IDEAL DIAMONDS ARE VERY RARE

CUT TO MAXIMISE PROFIT

Perfect but lost of wasted rock

2 diamonds Perfect cut
40 points each = 80 points
Total $1750

1 too Shallow 1 too deep but

2 poor quality diamonds cut to maximise rock
45 point + 65 point = 110 points
Total $3991

1 far too shallow, 1 far too shallow but

2 very poor quality diamonds Too shallow and too deep but
35 point + 75 point = 110 points
Total 54683

INCREASING PRICE AND BEAUTY WHILE IMPROVING CUT

OLD EUROPEAN CUT

0.97 Ct

Before

BRILLIANT CUT

0.80 Ct

After

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