Gauges
Lightweight, sensitive gauges made of polished steel with easy-to-read brass indexes. 1/10mm Graduation. 150mm Capacity
Speed up your diamond and gemstone measuring with the high-tech Electronic Gemstone Gauge.
Digital display eliminates eye fatigue when measuring stones over prolonged periods.
Folds to the size of a half-dollar. Measures round and baguette stones from 1/100 to 2 carats. Made of aluminum for long, durable service.
Contains 7 blades for measuring the most popular diamond shapes: round,baguette, square, pear and marquise stones.
The points are precision ground and accurate to 0.10 millimeter with a 10mm capacity. Marked on both sides.
This 80mm brass gauge is identical to the German models, but less expensive.
This handy gauge, known as a pearl gauge is excellent for stones of all kinds. Its smooth action assures accuracy.
Aluminum pocket gauge for measuring loose stones and settings ranging from.03 to 4 carats. A birthstone chart is embossed on the reverse side.
Enables you to accurately scribe cutting lines when reducing ring sizes. The 12 sizes are graduated in quarter ring sizes from 1/4 to 3. Mark and cut the correct size every time.
Measures in inches and millimeters. Capacity 4″ or 100 mm.
Ring Finger Sizing gauge measures US ring sizes for Comfort Fit style rings and bands. Gauge ranges from ring sizes 1 – 15 in half size increments. 29 pieces total.
American standard for ordering wire and sheet sizes from 0 to 36. Decimalequivalents on the back. Imported, economical quality.
The Presidium Gem Tester II (PGT II) features a clear and direct analog display for a quick way to identify diamonds/moissanite and separate up to 15 common colored gemstones from one another based on their thermal conductivity. It still features a retractable probe tip that ensures consistent pressure against the gemstone during tests resulting in more reliable results. With the industry’s thinnest probe tip size of 0.6mm, the PGT II tests gemstones as small as 0.02ct.
The holes in the gauge are used to measure stones, while the extensions are used to measure mountings. One side shows millimeters, the other side shows the corresponding carat measurements.
Graduated in millimeters across the top and 1/32″ increments across the lower half. All graduations are deeply etched.
Length 6″ (150 mm), width 1/2″ (12.7 mm)
Computes weight of diamond without removing stone from mounting. Width and depth are measured with caliper and compared with measurements in table. For round and fancy shapes.
This fine 6″ steel ruler is useful for quick measurements or scribing lines and features a hole in one end for hanging and includes a handy conversion chart on the back – inches to millimeters.
Indispensable gauge helps to size gemstones quickly and accurately. Sizes range from 1 pt. to 2.1 ct., plus baguettes. Aluminum disks fold together when not in use.
Ideal for closing the sale without using expensive stones. Cubic zirconia, mounted on stainless steel arms, folds within a protective cover when not in use. Each arm has the size of the stone in carats and millimeters. Comes in compact leather case. Ten sizes ranging from 0.10 to 2 carats
Popular for use with rubberized abrasives. Sold by dozen.
With brass collar. Used with rubber points. Sold by dozen.