Professional jewelry appraisal and gemological certification from the heart of the Diamond District. GIA-trained gemologists, certified reports, instant digital verification.
AGCI Sample Report
AGCI
American Gem Certification Institute
Jewelry Grading Report
Date issuedApril 13, 2026
AGCI Report#AGCI-2026-047-NYD
Grading Result
Total Carat Weight2.00 Carats
Clarity gradeVVS1
ColorG
CutExcellent
$ 1,355.00
Estimated Appraisal Replacement Value
20+
Years Experience
5,000+
Certificates Issued
GIA
Graduate Diamonds
47th
Diamond District NYC
Appraisal Services
Professional gemological examination for all types of fine diamond jewelry
Diamond Stud Earrings
Complete grading report including carat weight, color, clarity, cut, and metal type. Insurance replacement value.
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Engagement Rings
Detailed certification of your engagement ring's center stone and setting. Full 4C grading with replacement value.
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Fine Diamond Jewelry
Necklaces, bracelets, pendants, and all fine diamond jewelry. Comprehensive grading and insurance documentation.
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Luxury Watches
Authentication and appraisal of luxury timepieces. Market value assessment for insurance and resale purposes.
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Insurance Replacement
Official appraisal documentation accepted by all major insurance carriers for jewelry replacement coverage.
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Estate & Probate
Fair market value appraisals for estate settlement, tax purposes, and charitable donation documentation.
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Trusted by Our Clients
★★★★★
"Fast, professional, and thorough. The AGCI certificate was accepted by my insurance company without any questions. Mike took the time to explain every grade — I highly recommend."
Sarah K.
Engagement Ring Appraisal
★★★★★
"We purchased diamond studs online and needed verification before insurance. AGCI produced a beautiful certificate the same day. The QR code verification gives real peace of mind."
David R.
Diamond Stud Earrings
★★★★★
"As a jeweler in Midtown I send all my clients to AGCI. The certificates are detailed, professional, and Mike's GIA background gives customers the confidence they need."
Leon Diamond
Partner Jeweler · NYC
Trusted by Our Clients
★★★★★
"Fast, professional, and thorough. The AGCI certificate was accepted by my insurance company without any questions. Mike took the time to explain every grade — highly recommended."
Sarah K.
Engagement Ring Appraisal
★★★★★
"We purchased diamond studs online and needed verification before insurance. AGCI produced a beautiful certificate the same day. QR code verification gives real peace of mind."
David R.
Diamond Stud Earrings · NYC
★★★★★
"As a jeweler I send all my clients to AGCI. The certificates are detailed, professional, and Mike's GIA background gives customers the confidence they need to insure with confidence."
Leon Diamond
Partner Jeweler · 47th Street NYC
Built on Expertise and Integrity
AGCI was founded on the principle that every piece of jewelry deserves precise, trustworthy certification. Our GIA Graduate Diamond gemologist brings over two decades of experience from New York's Diamond District to every appraisal.
GIA Graduate Diamonds
74 W 47th St · NYC
Insurance Accepted
GIA Certified Gemologist
Mike Nekta holds GIA Graduate Diamonds credential, the industry's most respected qualification.
CertiSeal™ Protection
Every certificate is secured with our proprietary anti-fraud technology and instant QR verification.
Fast Turnaround
Same-day appraisals for in-person visits. Online submissions processed within 24–48 hours.
How It Works
Four simple steps to your AGCI certificate
1
Submit Details
Fill in your item details online or bring your jewelry to our NYC office.
2
Examination
Our GIA-trained gemologist performs a thorough examination using professional-grade equipment.
3
Certificate Issued
Your official AGCI certificate with CertiSeal™ protection is generated and issued.
4
Verify Anytime
Scan the QR code or visit agciusa.com to instantly verify your certificate's authenticity.
Ready to Get Certified?
Start your appraisal today — trusted by jewelers and insurance carriers across New York
Start Your Appraisal
Fill in all details — simple, fast, done in minutes
Fill Details
Review
Payment
Done
Metal Type — Gold 14K
SilverGold 10KGold 14KGold 18KGold 21KPlatinum
Clarity Grade — VVS1
FLIFVVS1VVS2VS1VS2SI1SI2I1I2I3
Click to Browse Image
PNG, JPG — will appear on your certificate
Review carefully. Click Back to make changes.
Item Details
Select payment method and confirm your order.
Appraisal & Digital Certificate$ 25.00
Shipping$ 0.00
Total Amount$ 25.00
Visit: 74 W 47th Street, New York, NY 10036 Hours: Mon–Fri 10:00 AM – 6:00 PM · Tel: (917) 341-5467
Accepted: Cash, Card, Zelle
Bank details emailed within 1 business hour of submission. Email: info@agciusa.com · Tel: (917) 341-5467
Send via Zelle to: (917) 341-5467
Include your order reference number in the memo.
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Order Confirmation
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Order Successful
Certificate No :
Verify a Report
Enter your AGCI report number or scan the QR code to verify authenticity
Enter Report Number
Every AGCI certificate includes a unique QR code that links directly to this verification page. Scan the QR code on your certificate or enter the report number above to confirm its authenticity and view the original grading data.
QR Code Verification
Scan the QR code on your AGCI certificate using your smartphone camera. You will be directed to this verification page with the certificate details automatically loaded.
Insurance Appraisals
Official documentation accepted by all major insurance carriers
Protect Your Investment
An AGCI appraisal certificate provides the official documentation your insurance company needs to fully cover the replacement value of your diamond jewelry. Our reports are accepted by all major insurance carriers in the United States.
We recommend updating your appraisal every two to three years as diamond market values fluctuate. Our online platform makes it easy to request a renewal and receive an updated certificate quickly.
Accepted by all major U.S. insurance carriers
GIA-certified gemologist assessment
Current retail replacement value
CertiSeal™ fraud protection on every certificate
Digital and physical certificate options
Same-day service available for in-person visits
Insurance Documentation Includes
Full 4C Diamond GradingCarat weight, color grade, clarity grade, and cut grade assessed by a GIA Graduate Diamond gemologist.
Metal Type & WeightPrecise identification of metal alloy (14K gold, 18K gold, platinum, etc.) and total weight in grams.
Estimated Replacement ValueCurrent retail market replacement value based on comparable stones in today's market.
CertiSeal™ VerificationQR code and digital certificate ID allowing instant online authenticity verification.
Gemologist SignatureSigned by Mike Nekta, GIA Graduate Diamonds, with full credentials and contact information.
CertiSeal™ Technology
Proprietary anti-fraud protection built into every AGCI certificate
Every appraisal is secured with our proprietary CertiSeal™ Technology — an advanced anti-fraud and anti-theft system designed to prevent tampering, duplication, unauthorized alteration, and misuse. Each document remains original, verifiable, and fully protected from the moment it is issued.
Built-in security features make any interference immediately visible. Attempts to modify or copy the appraisal compromise its integrity, providing clear evidence of tampering and preserving authenticity.
CertiSeal™ also deters theft and unauthorized transfer through traceable protection elements, ensuring each appraisal remains tied to its rightful ownership.
Trusted by clients, insurers, and financial institutions, CertiSeal™ enhances credibility, speeds verification, and reduces disputes.
More than a document — sealed, protected, and built to withstand scrutiny.
Unbreakable Security
CertiSeal™ is AGCI's proprietary digital security system that makes every certificate uniquely identifiable and impossible to forge. Each appraisal is assigned a permanent digital fingerprint that can be verified instantly from anywhere in the world.
If your item is ever stolen or lost, insurance companies can use your CertiSeal™-protected certificate to verify the original grading data and confirm the item's identity. The QR code on your certificate links directly to our secure verification database.
Unique QR code on every certificate
Tamper-evident holographic security strip
Digital certificate database entry
Real-time online verification at agciusa.com
Permanent record — never expires
Accepted as proof of ownership by insurers
Security Features
Holographic StripRainbow holographic security strip on the right edge of every printed certificate — impossible to photocopy faithfully.
QR VerificationUnique QR code links to our live verification database. Scan at any time to confirm authenticity instantly.
Digital Certificate IDEvery certificate has a unique alphanumeric ID (e.g. AGCI-2026-047-NYD) registered in our permanent database.
Tamper DetectionAny attempt to alter the printed certificate compromises visible security features, immediately indicating tampering.
About AGCI
New York's Diamond District gem certification authority
The Standard for Diamond Certification in New York
The American Gem Certification Institute (AGCI) was founded to bring accessible, credible, and trustworthy jewelry appraisal services to consumers and jewelers in the New York metropolitan area and beyond.
Located in the heart of New York's historic Diamond District at 74 W 47th Street, AGCI serves both walk-in customers and online clients across the United States. Our online platform allows customers anywhere to submit their jewelry for appraisal and receive their AGCI certificate digitally.
Our lead gemologist, Mike Nekta, holds the GIA Graduate Diamonds credential and brings over 20 years of experience working in the diamond and fine jewelry industry. Every certificate issued by AGCI is personally reviewed and signed by Mike.
GIA Graduate Diamonds — Mike Nekta
20+ years in the Diamond District
Third-generation jewelry professional
5,000+ certificates issued
Located at 74 W 47th St, NYC
Credentials & Standards
GIA Graduate DiamondsThe Gemological Institute of America's Graduate Diamonds program is the industry's most respected diamond grading credential.
Diamond District, NYCLocated at 74 W 47th Street in New York's legendary Diamond District — the world center for diamond and fine jewelry trade.
Professional EquipmentWe use calibrated electronic balances, 10X corrected loupes, binocular microscopes, UV light sources, proportionscopes, and master stone comparison sets.
Online & In-PersonAccept in-person appointments and online submissions. Digital certificates delivered by email. Physical trifold certificates available for in-person orders.
Contact AGCI
Visit us in the Diamond District or reach us online
Visit Us
74 W 47th StreetNew York, NY 10036 Diamond District
Monday – Friday: 10:00 AM – 6:00 PM Saturday: By appointment
Call or WhatsApp
(917) 341-5467Available during business hours. WhatsApp messages welcome.
For urgent appraisals, call directly for same-day scheduling.
Email
info@agciusa.comWe respond to all inquiries within 24 hours.
For online appraisal submissions, use the Start Appraisal form.
Jewelers Login
Partner jewelers with an AGCI account can log in to access bulk certificate ordering, tracking, and the digital delivery portal.