Advanced Technology
Dual Certification of Authenticity
GoldScreenSensor is a nondestructive verification technology tool that enables analysis of material composition and density without altering the product. It serves as a complementary system to the Assay Certificate to reinforce authentication, anomaly detection, and preliminary technical control processes
What is an Assay Certificate?
GoldScreenSensor GoldScreenSensor is a non-destructive verification tool that analyzes the composition and density of materials without altering the product.
It is used as a complementary system to the Assay Certificate to strengthen technical control processes, anomaly detection, and preliminary verification
99.99%
Certified metals purity reference
ISO 9001
Processes aligned with quality management standards
0.001%
Technical tolerances based on analysis method
24h
Indicative availability for technical verification
Certification Process
Each product undergoes a rigorous dual verification process designed to ensure its authenticity, purity, and documentation control


Spectroscopic Analysis
Verification of the metal’s elemental composition and purity using advanced spectroscopy technology
Weight Verification
Accurate measurement of the product’s weight and density as part of the technical verification process
Digital Certificate
Documented tracking of the product from its origin to final delivery to the client
Complete Traceability
Documented tracking of the product from its origin to final delivery to the client








Validation by Judicial Experts




Expert validation is part of the company’s internal structure. The certification and verification activities are supported by the direct involvement of a certified judicial expert integrated into the management of Good & Diamond Export S.L.
Certified judicial expert affiliated with a professional appraisal association
Accredited experience in the valuation of high-value metals and materials
Expert reports issued upon specific request and in accordance with Spanish judicial requirements
Certified Judicial Expert – Good & Diamond Export SL


What is GoldScreenSensor?
Official analysis performed by accredited refineries or laboratories that certifies the purity, net weight, and identification of the product according to recognized industry standards
The Assay Certificate serves as the foundational documentation in professional investment, custody, and metal trading operations
GoldScreenSensor
Certification
Official Assay Certificate
We employ a dual verification approach that integrates documentary certification (Assay Certificate issued by accredited refineries or laboratories) and nondestructive technological verification. The goal is to reinforce product authenticity, purity, and documentary traceability
Document issued by accredited refineries or laboratories that certifies the purity, weight, and identification of the product. Used as documentary reference in professional investment, custody, and resale operations. Issued in accordance with international control and quality standards


Combined Benefits
Complementary analysis of elemental composition and physical properties of the material
Reinforcement in detecting common anomalies and counterfeits through technical verification
Digital documentation associated with the verification process, available upon request
Detailed technical information and specific reports are provided upon direct request, according to the type of product and the intended purpose
Good & Diamond Export S.L.
Good & Diamond Export S.L. is an international company with business operations in Spain, Dubai, and Japan, specializing in investment in certified physical assets such as gold, silver, and diamonds.
A strong collaborative network across Europe, Asia, and the Middle East.
Would you like to schedule a consultation? Please contact us using this form.
Our team is committed to providing a response with the utmost responsibility, confidentiality, and professionalism.
Business Hours: Monday – Friday, 9:00 AM – 6:00 PM (CET)
Phone Consultations: By appointment only (For confidentiality reasons, please contact us by email first)
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