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Valuation Process

Gemappraise uses an eight-point appraisal process for analyzing jewellery and assessing its real worth. It’s a rigorous approach which involves individually testing all facets of the piece and then checking it against current market demand.

Emerald ring with number 2 - 8 labelled to identify steps of the process



Metal Tests

Metals are tested using acid or electronic analysis to determine the caratage of the jewellery, e.g. 10ct, 14ct, 18ct, PLAT, etc.

Purpose of the Appraisal

This is confirmed with the customer and is important as the valuation needs to reflect the market use of the jewellery. For example, if it is for insurance purposes, a family law hearing or private sale.​



Quality Analysis

Grading of the gemstone is achieved through detailed analysis of its colour, cut and clarity.


Size Analysis

The gemstone is measured and its weight calculated.

Gemstone Identification

Gemstones are identified using a x10 loupe eyeglass or more complex techniques involving a binocular microscope, ultra violet light testing or refractive index analysis.


Diamond Verification

Diamond jewellery, including loose or mounted stones, are then analyzed and tested to determine the authenticity of the diamonds.


Manufacturer Identification

An assessment is made of how the item was manufactured, such as cast, handmade or a combination of both.


Setting Type & Quality

Each type of setting within a piece of jewellery is individually assessed for its quality and complexity as it can affect the overall valuation. There may be more than one type of setting, such as grain, claw, rubover and channel etc.


Valuation Certificate

Each component of the piece, including the mount, settings and gemstones, are then given a price. These are combined to establish an estimated value based on the market purpose of the jewellery. The valuation is then recorded on an appraisal certificate together with a high definition photograph of the item.

Valuation Purposes

Retail Replacement

The value of a lost or stolen item if it has to be replaced from a traditional jewellery shop. This valuation is usually for insurance purposes.

Auction Reserve

The minimum price which the owner could expect to achieve at an auction, excluding premiums and commissions of the auctioneer.

Fair Market Value

A second-hand price in a respectable or specialised market between a willing buyer and seller.

Liquidation or Forced Sale

The expected price of an item which has to be sold quickly in non-ideal market conditions.


An appraisal based on the condition of the jewellery and current market trends.

Private Sale

The price that you could expect to achieve by selling jewellery to a member of the public, excluding GST, and sales and duty tax.

Divorced Property Settlement

The Family Court will often issue instructions for a valuation based on fair market value.

Deceased Estate

A valuation which reflects current market value subject to instructions from the solicitor.

Probate & Taxes

Determining the fair market value of each asset is crucial for accurate tax reporting and proper distribution of the estate.

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