Appraisal vs Certificate: Two Different Documents

A gemstone certificate and a typed insurance appraisal document side by side
One document identifies the stone. The other puts a number on it. Insurers need both, for different reasons.

A certificate answers "what is this?" An appraisal answers "what is it worth, and to whom?" The two get used interchangeably in conversation and then cause trouble at the claims desk, because an appraisal is not a second opinion on a certificate — it is a different kind of document.

Two documents, two questions

Gemstone paperwork splits into identification and valuation. Identification documents — an IGI report, a GIA report, a GRA card — describe the object: material, dimensions, weight, and for diamonds the grades and proportions. They contain no price: nothing that tells you what the stone cost, or what it would cost to replace.

Valuation documents start from the object and end at a figure. They are written by an appraiser for a stated purpose, and the figure depends entirely on which purpose is stated. That is where most confusion lives: the same ring can carry two legitimate appraisals differing by a factor of two, and neither is wrong.

What a certificate does, precisely

A certificate is a technical description made by a laboratory, on one stone, at one moment. It says the stone is a diamond or a moissanite, gives measurements to a hundredth of a millimetre, states the weight, and grades what can be graded. On a lab-grown diamond report it also states the growth method. It is numbered, signed, and for the major laboratories verifiable online.

What it does not do: place a value, describe the setting, or account for craftsmanship. A report on a 1.00 ct stone says nothing about the 18K setting it sits in.

What an appraisal does, precisely

An appraisal is a written opinion of value, dated and signed, describing the item completely enough to identify it again — metal, karat, weight in grams, stone count, stone dimensions, cut, colour, clarity, setting style, any engravings. Then it states a figure, the method used to reach it, and the purpose for which it was prepared. That purpose line is not boilerplate. It determines the number.

Replacement value versus resale value

Replacement value is what it would cost to buy the item new, at retail, from a comparable seller today. It includes the retailer's margin, because that is what you would pay. Resale value — also called liquidation or second-hand value — is what the item would fetch if you sold it. For jewellery that is a fraction of retail: the buyer is a dealer who must resell at a profit. For a manufactured material like moissanite the gap is widest of all — no scarcity, no collector market.

Replacement value Resale value
Question answered What would it cost to buy again? What would someone pay me?
Basis Current retail, comparable seller Dealer buy price, second-hand
Retail margin included Yes No
Typical level Full retail A fraction of retail
Used for Insurance, claims Divorce, estate, private sale
Who asks for it Insurers Courts, buyers, executors

Which one the insurer wants

Replacement value, almost always. A household policy is written to put you back where you were: if the ring is lost, the insurer pays what it costs to obtain an equivalent — retail. The appraisal on your schedule should therefore be a replacement-value appraisal, and it should be recent — most insurers want it refreshed every two to five years, because retail pricing moves.

Why the mix-up causes trouble at claim time

The common error runs one way: someone pays for an appraisal, sees a figure well above what they paid, and concludes the piece has investment value. It does not. A $1,900 replacement appraisal on a ring bought for $900 does not mean the ring is worth $1,900 to anyone but an insurer replacing it at retail.

The reverse error is worse. Insuring at resale value, then losing the ring, means the payout will not cover a replacement, and you pay the difference.

What makes an appraisal usable

A line saying "diamond ring, $3,500" is not an appraisal; it is a number on paper an insurer may refuse. A usable document carries the appraiser's name and credential, the date of examination, a full description, the valuation approach and the market it references, the stated purpose, a signature, and photographs where relevant.

Two more points. The appraiser should not be the seller — an appraisal from the business that sold you the piece is a conflict and weaker evidence. And an appraisal is an opinion, not a measurement; the credential behind it is your only guide.

A certificate is not a cheap appraisal

People sometimes submit a grading report instead of an appraisal to save the fee. It usually fails: the report contains no value and no description of the finished piece. The two work as a pair: the report establishes what the stone is, the appraisal establishes what the item is worth.

For lower-value pieces — most moissanite jewellery — insurers often schedule the item on a receipt and description instead, because the paperwork would cost more than the risk.

What we make

We cut and set stones in our own factory in Wuzhou, Guangxi, working there since 2008. Moissanite ships with a GRA card stating material, measurements, weight and colour; lab-grown diamond ships with an IGI report; lab-grown emerald, ruby and sapphire come with their own documentation. Those are identification documents, and we say so rather than presenting them as valuations.

Pieces run $17 to $2,020, most around $98, in 925 silver and 9K, 14K or 18K gold. Shipping is free over $99 and $5.99 below it, and unworn pieces in original packaging can be returned within 30 days — which for most of our range is more useful protection than an insurance schedule.

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