J. K. Diamonds
 

129C, B.B.Ganguly Sreet Kolkata

 

+(91) 9874511366

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Gem Certification

Gem Certification (Diamond Grading, Colors tone Grading, Rough Specimen Certification)

In our industry it is mandatory to know a full specification of which you working with. In this matter J K Diamonds offering a regular gem testing service for the people of gem and jewellery industry,

Service we offer:
  • 1 : Colorstone Identification (Ruby,sapphire,Emerald etc )
  • 2. Color stone Grading
  • 3. Diamond Identification
  • 4. Diamond Grading
  • 5. Identification of types of diamonds like CVD,HPHT,Cubic zirconia Etc.
  • 6. Grading report of Diamond Studded Jewellery.

Our reports are protected by some high security features like Hologram,Watermark,Signature,Trademark Logo and sealed box packaging.
One can verify a report through our website. Reports are kept on our database for the period of 6months.
Diamonds are graded on the basis of 4C’s Color,Cut,Clarity & Carate.