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Sell Your Diamonds to a Professional Diamond Pawnbroker




If you’ve been thinking about pawning a diamond ring or diamond earrings, talk to our trusted advisor. Our specialist diamond pawnbroker services include identification, valuation, and testing of your jewellery. By thoroughly evaluating your diamond jewellery pieces, we can offer you the highest possible price for cash on the spot or a collateral loan. If you’re searching for a ‘diamond pawn shop near me’, we are a Sydney based company in the heart of the CBD. We are close to public transport, shopping centres and parking.

Quality Service

We aim to ensure every customer has a positive experience with us. All appraisals are completed transparently and openly. Our years of experience are at your disposal. Feel free to ask us questions to better understand the value and types of stones and diamonds you have.

Gemstone Hardness

One of the considerations taken by gemmologists when identifying and valuing gemstones is their hardness. A hardness test indicates the type of gem. The hardest of all gems is the diamond. What this means is no other gems can be used to scratch a diamond(*1). Gemstone hardness is rated on a scale of 1 to 10 on the Mohs scale(*2,3).

Sydney Finance Pawnbroker has mineral hardness testing equipment on-site to accurately identify the type of gem you bring in.

Cut, Carat, Colour, and Clarity of Diamonds (The 4Cs)

In addition to gemstone hardness, cut, carat, colour, and clarity (the 4Cs) are used to value diamonds. You may have two identical diamonds in carats however, it is unlikely their value would be the same because of the other factors.

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1. Cut

The cut of a diamond determines how much light can be reflected in the diamond. Generally speaking, the more facets to pick up light, the sparklier the diamond is. The most popular and classic cut is round brilliant(*4,5).

2. Carat (Ct.)

The carat of a diamond relates to its weight. Each carat weighs approximately 0.2 grams(*6). 1 carat and higher diamonds are very rare and attract higher prices. If you are told that your diamond is 0.30 carats (for example), this means that it weighs 300 milligrams(*7).

3. Colour

When you go to sell your diamond, the gemmologist will assess the colour of your diamond. The clearer the diamond, the purer it’s chemical composition and atomic structure(*8). The Gemological Institute of America’s (GIA) colour grading scale is most commonly used. In this scale, diamonds are given a letter between D and Z where D is the purest(*8).

4. Clarity

Blemishes and inclusions are the two characteristics which influence clarity diamonds. Clarity is assessed by looking down on the top of the diamond with 10x magnification(*9). Under this magnification, a gemmologist may identify blemishes which are on the surface, or inclusions, which are within the diamond. Blemishes and inclusions are natural occurrences in diamonds. Inclusions have a more detrimental impact on diamond value than blemishes. This is because they can impact the ability for light to move around and reflect in the diamond(*9).

All in all, diamonds are beautiful no matter their cut, carat, colour, or clarity. The above information is provided to give you an idea of what we look at when assessing the value of your diamond.


Sydney Finance Pawnbroker are diamond and stone professionals who strive to give every customer the best possible rates and prices. You won’t be disappointed with our quotes on diamonds, diamond rings, earrings, and other jewellery.



*1. Clark, D. Gemstone Hardness and Wearability. International Gem Society. 2020.
*2. King, HM. Mohs Hardness Scale. 2020.
*3. International Gem Society. The Mohs Hardness Scale and Chart for Select Gems. 2020.
*4. Tiffany & Co. Diamond Shapes. 2020.
*5. International Gem Society. Different Diamond Shapes: Ultimate Guide 2020.
*6. Lumera. Diamond Carat Size. 2020.
*7. Gemological Institute of America. Diamond Carat Weight. 2020.
*8. Gemological Institute of America. Diamond Colour. 2020.
*9. Australian Diamond Network. The 4Cs – Diamond Clarity. 2020.