assorted list of gemological labs

Here are some highly reputable gemological laboratories in Singapore for gemstone and diamond authenticity testing:

Here are some highly reputable gemological laboratories in Singapore for gemstone and diamond authenticity testing:

Nan Yang Gemological Institute
Lab
1, Scotts Road #04-32 Shaw Centre
High‑regarded local gem lab with advanced instrumentation for gemstone/diamond ID, treatment detection, origin; trusted by industry professionals.

Far East Gemological Laboratory
Lab
9 Perak Rd, Singapore 208130
ISO/IEC 17025:2017‑accredited since 1998; offers gem ID, diamond grading, jewellery appraisal, mobile lab services.

Raffles GemLab
Lab
400 Orchard Rd, #02-23 Orchard Towers, Singapore 238875
One of several local labs offering gem appraisal services available to public.

Sigma International Gemology Laboratory Pte. Ltd.
Lab
40B Horne Rd, Singapore 209065
Another public‑available local gem appraisal service listed in industry FAQ.

Ideal Gemological Laboratory Pte Ltd
Lab
Singapore
Listed among local labs offering gem appraisal services to public.

Top Recommendations

1. Nan Yang Gemological Institute (NGI)

• Strengths: Founded in 2001, NGI is a trusted name in Singapore with over two decades of expertise. Their founder, Mr. Zeng C G, holds advanced credentials in geology and gemology and leads a team that uses cutting-edge tools like UV‑VIS spectrometers, FTIR, Raman micro‑spectrometry, EX‑DRF, and photoluminescence for robust identification, treatment detection, and origin analysis.
• Services: Offers gemstone, diamond, and jewelry appraisal reports that align with international lab standards. They also provide verbal expedited testing and on‑site services for high‑value items or difficult-to-transport pieces.
• Credibility: Frequently lauded by local jewelers and professionals for their precision and integrity. One recent comment on Reddit simply states: “NGI is reputable in Singapore”.

2. Far East Gemological Laboratory

• Accreditation: Holds ISO/IEC 17025:2017 accreditation since 1998, reflective of robust lab standards (Far East Gem Laboratory, Jewellery Appraisers of the World).
• Expertise: Skilled in identifying B-jade (treated jadeite), fracture‑filled diamonds, modern gemstone treatments, and more (Far East Gem Laboratory, Jewellery Appraisers of the World).
• Professional Standing: Its reports are recognized in legal and professional contexts—used by lawyers, courts, and respected by the industry (Jewellery Appraisers of the World).

3. Other Local Labs

• Raffles Gemlab, Sigma International Gemology, and Ideal Gemological Laboratory are also available to the public, but explicit third-party reviews or details on their capabilities are limited.
• In the absence of more information, NGI and Far East remain the top choices for reliability.

International Lab Context & Community Insights

If you’re considering international certification, globally trusted labs include:

• GIA (Gemological Institute of America)
• Gübelin
• IGI (International Gemological Institute)
• SSEF
• GRS
• AIGS
• Lotus (noted for high quality sapphire, ruby, and jade assessments)

As one Reddit user put it:

“There are only really like 10 max good labs… GIA (Gemological Institute of America), Gübelin, IGI, Lotus, SSEF…”

Summary & Suggestions

If you need:

• Local trusted certification → NGI or Far East Gem Lab are excellent choices.
• Appraisal for insurance or legal use → Far East’s ISO accreditation may add weight.
• Quick verbal verification or on-site testing → NGI offers flexible options.
• International certification → You might consider sending your stone to GIA, IGI, or others.

Let us know if you’d like assistance with contact details, pricing comparisons, or making an appointment!