40-B Horne Road
Singapore 209065

Tel : (65)6392 1592
Fax : (65)6342 2722
Email : sig_gemlab@yahoo.com

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About Us

Highly Qualified Gemological Team with outstanding wealth of experiences and international exposure in the laboratory.

( We will under promise and over deliver on our commitments )


That each Diamond or Gemstone graded and report issued by SIG will truthly representative of its characteristics by nature.

Provide an accurate,consistent and unbiase grading report to our valued customers.

To fulfill and facilitate our customer needs without compromising on our grading standards.

Our Belief

Being professional ,neutral and unbiased in our reports/appraisals with guarded interest of SIGMA integrity.

SIGMA - Hallmark of Integrity

Company Profile

  • Team of Graduate Gemologists
  • Registered Master Valuer
  • Licence Appraiser recognized by Singapore Government

Our Customers

  • USA
  • Europe
  • Malaysia
  • Hong Kong
  • Indonesia
  • Australia


  • Provide Solution
  • Increase Market Share
  • Capturing New Market
  • Create Value