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The Document Most People Forget Until It’s Too Late

Most people who buy a lab grown diamond spend weeks deciding on the cut, the setting, and the carat weight. The paperwork gets shoved in a drawer. Then, months later, when they try to insure the piece — or worse, when they need to file a claim — they realise they’re missing half the documents an insurer actually needs.

This guide is a practical checklist of every document you should gather before approaching an insurer. It applies whether you’ve just bought a diamond ring, an engagement ring, a pendant, or a pair of earrings. The process is the same, and the gaps tend to appear in the same places.

The Core Document: Your IGI or GIA Grading Certificate

A grading certificate is not the same thing as a valuation — and confusing the two is probably the most common mistake lab diamond owners make when approaching an insurer.

[A grading report is a detailed written assessment issued by an independent gemological laboratory](https://www.nishalgems.com/post/how-to-read-diamond-certificate) after a trained grader has physically examined and tested a specific stone. [The report documents the diamond’s physical and optical characteristics, assigns standardized grades for the Four Cs, and provides a permanent record tied to that specific stone through a laser-inscribed identification number.](https://www.nishalgems.com/post/how-to-read-diamond-certificate)

For lab grown diamonds in India, IGI (International Gemological Institute) is the dominant standard. [IGI is the global standard — widely accepted internationally and the most recognised certification for lab grown diamonds worldwide.](https://ivanajewels.com/blogs/lab-grown-diamond-jewellery/lab-grown-diamond-certification-guide-ivana-jewels) The certificate explicitly states the production method — CVD or HPHT — and confirms the stone’s origin as laboratory-grown.

One thing worth checking before you present the certificate to a valuer: [the laser inscription on the girdle should match the report number on the certificate.](https://www.nishalgems.com/post/how-to-read-diamond-certificate) This match is what ties the physical stone to the document. [Many IGI-certified lab grown diamonds have a microscopic laser inscription on the diamond’s girdle — this inscription matches the report number, making verification easy.](https://siarabyark.com/blogs/news/igi-certification-for-lab-grown-diamonds-complete-guide) If the numbers don’t match, stop and investigate before proceeding.

Also keep in mind: [a grading report is not a valuation. GIA and IGI assess what a stone is, not what it is worth in the current market.](https://www.smithgreenjewellers.com/gia-igi-diamond-grading-certificates/) A valuation document assigning a monetary replacement figure is a separate document entirely — more on that below.

What to check on your certificate before presenting it:

• Report number visible and legible
• Production method stated (CVD or HPHT)
• Origin stated as “Laboratory-Grown”
• All Four Cs graded (carat, cut, colour, clarity)
• Report number matches the laser inscription on the girdle

The Purchase Invoice: Your Legal Proof of Transaction

The certificate tells an insurer what the stone is. The invoice tells them what you paid for it and who sold it to you. Both are needed.

[A diamond certificate alone does not legally protect your purchase. The document that protects you is the invoice.](https://ivanajewels.com/blogs/lab-grown-diamond-jewellery/lab-grown-diamond-certification-guide-ivana-jewels) In India, an invoice is a legal proof of transaction. If a jeweller offers a diamond “with certificate” but doesn’t include grading details on the invoice, you’re not fully protected for insurance or resale purposes.

Your invoice should show the seller’s GST number, the date of purchase, a description of the piece (including the stone’s carat weight and metal purity), the IGI certificate number, and the total amount paid including GST. Without this information, [claims over ₹50,000 are often denied or delayed.](https://varniya.com/blogs/labgrown-diamond-news/how-to-insure-lab-grown-diamond-ring-guide)

Store a digital copy of your invoice separately from the physical document. Email it to yourself or keep it in cloud storage. Losing the paper copy shouldn’t mean losing your claim.

The Valuation Letter: What Many Owners Skip

This is where most lab diamond owners in India have a gap in their documentation. [Some insurers require a valuation letter from a registered jewellery valuer in addition to the purchase receipt.](https://goenkajewellers.com/blogs/news/diamond-jewellery-insurance-india-2026) [A valuation provides a current market replacement value that may differ from the original purchase price.](https://goenkajewellers.com/blogs/news/diamond-jewellery-insurance-india-2026)

That last point matters more than it might seem. Lab grown diamond prices have shifted over the past few years, and the replacement cost of your piece in 2026 may be different from what you paid at purchase. Insuring at purchase price alone could leave you underinsured — or overinsured, depending on market movement.

A registered jewellery valuer in India must meet specific qualifications. [The Valuer of Jewellery shall be engaged for a period of 5 years as a sole partner or proprietor in a partnership firm that carries the business of jewellery, with an average annual turnover of not less than ₹15 lakhs in the last 3 accounting years.](https://www.ezylegal.in/blogs/understand-the-concept-of-the-valuer-under-the-income-tax-in-detail) Under the Income Tax Act, 2025 (effective 1 April 2026), [the registered valuer framework is codified under Section 514, with detailed procedural rules in Rules 246–249 of the IT Rules, 2026.](https://www.patronaccounting.com/blog/valuer-registration-rules-2026-eligibility-forms-fee-scale-rules-246)

Ask your insurer whether they require a valuation letter before you spend money getting one — some accept the purchase invoice for lower-value pieces. But for pieces above ₹1 lakh, a valuation letter from a registered valuer is probably worth having regardless.

What a proper valuation letter should include:

• Valuer’s name, registration number, and qualifications
• Date of valuation
• Detailed description of the piece (metal type, weight, stone specifications)
• Reference to the IGI/GIA certificate number
• Current replacement value at retail
• Valuer’s signature and stamp

Valuation letters tend to be valid for 2–3 years. After that, [get an up-to-date valuation from a professional jewellery appraiser](https://www.stanhopeinsurance.co.uk/blog/blog/can-you-insure-a-lab-grown-diamond/) to make sure your coverage still reflects the piece’s current replacement cost.

Photographs: The Document Nobody Thinks Of as a Document

Photographs are not glamorous paperwork, but they do real work when a claim is filed. [For each piece to be insured, collect the purchase receipt, the IGI certificate, and at least two clear photographs showing the piece from different angles including any engravings or identifying features.](https://goenkajewellers.com/blogs/news/diamond-jewellery-insurance-india-2026)

Shoot the piece in good natural light. Capture the full piece, close-ups of any hallmarks or engravings, and the setting from multiple angles. If your piece has a distinctive design — say, a pavé-set diamond necklace or a halo engagement ring — photograph the details that make it identifiable. These images help an insurer arrange a like-for-like replacement rather than a generic approximation.

Store photographs separately from the physical jewellery. A photo on your phone that gets stolen along with the ring is no help at all.

The Full Checklist at a Glance

Before you contact an insurer, work through this list for each piece you intend to cover:

Essential documents

• IGI or GIA grading certificate — original or verified digital copy, with report number matching the laser inscription on the stone
• Original purchase invoice — showing GST number, certificate reference, metal purity, and total price paid
• Photographs — minimum two angles, including any engravings or identifying marks

Likely required for pieces above ₹1 lakh

• Valuation letter from a registered jewellery valuer — dated within the last 2–3 years, referencing the certificate number and stating current replacement value

Useful to have

• Hallmarking documentation — if your piece is set in 18kt or 22kt gold, the BIS hallmark on the metal confirms its purity independently of the diamond grading
• Warranty or exchange policy document — from the retailer, as some insurers factor buyback or exchange terms into how they handle claims

For pieces where [the IGI certificate is missing, a claim relies on other documentation: purchase receipt, photographs, and any valuation letter available. Claims without certificates take longer to process and may be settled at a lower value.](https://goenkajewellers.com/blogs/news/diamond-jewellery-insurance-india-2026) This is the single most practical reason to keep the certificate stored separately from the jewellery itself — if the jewellery is stolen, the certificate should still be accessible.

And a note on household insurance: [most standard household insurance policies in India include some jewellery theft coverage but with a sublimit, typically ₹25,000 to ₹50,000 in total.](https://goenkajewellers.com/blogs/news/diamond-jewellery-insurance-india-2026) For any certified lab grown diamond piece above that threshold, a specific rider or standalone declaration is needed. Check your existing policy before assuming you’re covered.

At Elevé Diamonds, every piece comes with certified documentation — the same documentation this checklist is built around. If you’re exploring the collection and want to understand what paperwork accompanies each purchase, the team is available to walk you through it before you buy.

One Final Point on Policy Reviews

Getting insured is the first step. Staying correctly insured is the part most people skip. [Review your policy at least once a year to make sure that it’s still providing the right coverage for your needs.](https://www.stanhopeinsurance.co.uk/blog/blog/can-you-insure-a-lab-grown-diamond/) Lab grown diamond market values have been moving, and a valuation from three years ago may no longer reflect what it would cost to replace your piece today.

Set a calendar reminder. Pull out the paperwork once a year. Check that your declared value still makes sense, and that your certificate and valuation letter are within their validity window. It takes about twenty minutes and costs nothing until you actually need to update something.