1. Send Your Enquiry
Choose trade or private, then share item type, volume and preferred route.
DGJV DIAMOND GEM JEWELLERY VALUATION SERVICES
Precision. Authority. Commercial Confidence, Elevated.
For more than twenty years, DGJV has partnered with jewellers across the UK with professional grading and valuation reports. From natural and laboratory-grown diamonds to coloured stones, antiques, and pre-owned jewellery, we deliver refined technical insight that helps your team sell with complete confidence.
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Independent JewellersAntique SpecialistsLuxury Retail TeamsPrivate Collector Clients
2. Consultation & Logistics Planning
We align assessment priorities, logistics route, timing, and reporting scope before work begins.
3. Receive Your Reports
Get clear, professional valuation and grading documentation for practical client use.
Average Postal Turnaround
48 Hours
Experience
20+ Years
Coverage
Natural + Lab-Grown
Service Modes
Direct Onsite / Postal / Leeds
Signature Service Overview
Tailored for Jewellers, Crafted for Clarity
Our reports are crafted to give sales teams technical confidence without compromising the elegance of the client conversation.
Our Diamond Grading Jewellery Valuation Service uses Independent Diamond Grading Laboratory (IDGL) certificates — the same trusted certification many longstanding trade clients have relied on for decades.
Natural Diamond Grading
Professional grading and valuation reporting for loose and mounted natural diamonds.
Insurance Valuations
Structured valuation reporting for private collectors requiring insurer-ready documentation.
Probate & Inheritance Appraisals
Clear appraisal reporting for estate administration, inheritance planning and legal clarity.
Resale Authentications
Evidence-based authenticity and valuation context for resale, auctions and private transactions.
Lab-Grown Diamond Reports
Clear reporting for modern retail requirements, including lab-grown stock.
Gem and Jewellery Valuation
Valuation services for coloured stones, antiques and second-hand jewellery.
Bespoke Certificate Formats
Custom report layouts and data points tailored to your business requirements.
Assessment Methodology
Professional Standards, Refined Reporting
DGJV assessment methodology is articulated in professional language and aligned with GIA grading standards. We provide concise technical reporting that supports valuation decisions for insurance, probate, and resale applications.
View Full Methodology Breakdown
Service Access Routes
How You Can Engage DGJV
Direct Onsite Laboratory Assessment
We bring the laboratory to your premises, ensuring maximum security, zero transit risk, and immediate certification for high-value collections.
Postal Certification
Secure return by Royal Mail Special Delivery with an average forty-eight hour turnaround.
In Person in Leeds
Arrange a Leeds appointment and have stock assessed directly with DGJV.
Client Endorsements
Endorsements from trade clients, displayed with greater prominence.
“Prompt, efficient and competitively priced. The certificate helped us improve sales.”
“Useful onsite service. Fast assessment on our own premises.”
“Professional integrity, consistent grading and fast turnaround for years.”
“Prompt, efficient and competitively priced. The certificate helped us improve sales.”
“Useful onsite service. Fast assessment on our own premises.”
“Professional integrity, consistent grading and fast turnaround for years.”
Private Client FAQ
Private Collection Questions, Clearly Answered
A concise guide for private collectors who need insurance-ready, confidential and probate-aware valuation support.
What is required for insurance valuations?
Provide item details, any prior certificates or invoices, and intended insurer use. DGJV then structures a valuation report suitable for insurance submission.
Are your reports accepted by major UK insurers?
Yes. Reports are prepared in a professional format commonly accepted by major UK insurers for jewellery valuation requirements.
How is client confidentiality maintained?
All enquiries are handled discreetly, with controlled report handling, secure logistics options, and limited data exposure throughout the assessment process.
Do you provide appraisals for estate and probate purposes?
Yes. DGJV provides probate and inheritance appraisal reporting for executors, families, and professional advisers managing estate matters.
Trade Questions
Common Procurement Considerations
A concise overview for jewellers reviewing service fit, lead times, and reporting scope.
Do you cover natural diamonds, lab-grown diamonds and gemstones?
Yes. DGJV supports natural diamond, lab-grown diamond, coloured stone and broader jewellery valuation work.
How quickly can work be turned around?
Postal certification averages forty-eight hours. Direct onsite laboratory assessment and Leeds appointment timelines are confirmed per job scope and can be arranged quickly.
Can report formats be tailored for our business?
Yes. DGJV offers custom and bespoke reporting options for regular trade clients who need specific presentation styles.
How do we handle secure logistics?
Items can be handled via direct onsite laboratory assessment, Leeds appointments, or postal certification with Royal Mail Special Delivery returns.
Can private clients still use the same enquiry path?
Yes. One contact flow is used for everyone, with a lead type selector for trade or private requests.
Next Step
Ready to Discuss Your Collection?
Share a discreet enquiry for trade support, private valuation requests, or sample pack information.