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Diamond inspection under professional gemological equipment

GSBH Diamond Testing

Complimentary Diamond Testing
for Southern California Clients

Confirm whether your diamond is natural, lab-grown, treated, or correctly represented with a private preliminary review from GSBH.

Speak With a Specialist

Complimentary testing is subject to eligibility, appointment availability, item type, and specialist review. Formal appraisal, grading, documentation, or lab services are quoted separately.

What We Help Confirm

Know What You Own

Natural vs. Lab-Grown

Confirm whether your diamond may be natural, laboratory-grown, or requires further gemological testing.

Authenticity Review

Determine whether the item appears consistent with a genuine diamond or needs deeper verification.

Treatment Indicators

Identify whether the diamond may show signs that require further review for treatment or enhancement.

Paperwork Comparison

Compare your item against existing reports, receipts, appraisals, or insurance documents.

Resale and Insurance Readiness

Understand whether additional documentation may be useful for insurance, estate planning, or resale.

Complimentary Testing Includes

What Your Complimentary Review Includes

A private, specialist-guided preliminary review designed to help you understand your diamond.

Private diamond consultation

Preliminary visual inspection

Basic authenticity screening

Natural vs. lab-grown discussion

Document review if available

Recommendation for next steps

Guidance on whether formal appraisal or lab verification is needed

Important: This complimentary review is not a formal appraisal, insurance valuation, grading report, or laboratory certificate.

Who This Is For

Designed for Diamond Owners, Buyers, and Families

Recently purchased diamonds
Engagement rings
Inherited diamond jewelry
Estate pieces
Loose diamonds
Diamond earrings or necklaces
Clients unsure of origin or documentation
Clients comparing paperwork to the actual item

Why GSBH

Independent Diamond Review, Beverly Hills Discretion

Since 1983, Gemological Services of Beverly Hills has provided independent gemstone and jewelry analysis for private clients, collectors, estates, and institutions. Our role is to help clients understand what they own with clarity, discretion, and professional care.