Detail Description :

I.  Identity

1. Natural Diamond
2. weight : 382.25 carat
3. Measurements : 039,9 x 02,5 x 01,8
4. snape : curled up

5.  Transparency : Transparant

6. Colour  : white

7. spectrum  :  Hand Centered @ 90 NM (Iron)

8. Mancnification : Partial Dissolved Silk

                                 Fine Particles Fracture

9. Comments : Natural Diamond

II. Test Result 

1. Optic Character  :  DR X

2.  Uniaxial   :  X Positive

3. Biaxial  : - negative X

4. Reactive Index  :  2.900 - 2.910

5. Birefringence  :  0,012

6. Specific Grafity  : 76.650

7. Dicroic  : x trichroic

8. strong :  x  moderate

9. None : weak

you can see the video here:  http://www.youtube.com/watch?v=mT9024GDA_A

you can see the certificate here: http://mochamadtaufanamien.com/goto/SERTIFICATE.jpg