Description
A diamond gauge is a tool used by jewellers for measuring the size of diamonds and other gemstones.
It is made out of clear acrylic that includes a precise measuring scale in carats that determining the size of gemstones.
The sizes are listed on the gauge:
- Oval – 0.25ct, 0.50, 0.75ct, 1ct, 1.25ct and 1.5ct
- Pear – 0.25ct, 0.50ct, 0.75ct, 1ct, 1.25ct and 1.5ct
- Round – 1ct, 1.25ct, 1.5ct, 1.75ct, 2ct, 2.25ct, 2.5ct and 3ct
- Square – 0.25ct, 0.50ct, 0.75ct, 1ct, 1.25ct and 1.5ct
- Emerald – 0.25ct, 0.50ct, 0.75ct, 1ct, 1.25ct and 1.5ct
The gauge is useful for jewellers and gemmologists during the evaluation and sizing of gemstones in the setting. It can also be used to suggest what size stone a setting will accommodate.
Please note that this gauge provides only an approximate indication of the stone’s size.
To accurately determine the carat weight of a diamond, it is essential to weigh the diamond precisely and understand the relationship between its weight and size.
To determine the precise diamond carat weight, align this product with a Carat Scale ()
Product size:
- Length – 100mm
- Width – 65mm
- Depth – 2mm
- Weight – 15g













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