We offer five different devices for measuring the specific gravity of gems and minerals, each suitable for particular applications, as summarized further below. Pay close attention to the Min. and Max. Weight ranges listed, then click on the pictures below, or the navigation buttons above for more detail.
Price of SG Kit:
Features: The more sensitive scales are ideal for small gemstones. This is also the fastest and most user-friendly of all devices featured here. If you already have an Electronic Scale, or need a precision Electronic Scale anyway, this is probably the best way to go for specific gravity measurements.
Features: Its high degree of sensitivity makes it a good tool for gemstone identification (except for the smallest of stones), but it's also a good choice for mineral ID. Its direct reading feature frees the user from having to make any calculations.
Features: A specialized digital gauge that measures the volume of a cut gemstone, and then combined with the weight of the stone, calculates Specific Gravity.
Min. Weight for SG: About 1.5 grams
Max Weight: 310 grams
Features: Best suited for heavier mineral specimens.
Price: $79 (Out of stock)
Min. Weight: 1 gram
Max. Weight: 20 grams
Features: Suited for field use and/or the mineral hobbyist - our most affordable unit. You must be adept at basic arithmetic and at working with numbers.
Click on this link or the navigation button above to read more About SG (Specific Gravity).