In Stock Gemmology Presidium Gemtester Diamond Mate-A 02261 €150.00 Thermal conductivity tester to instantly verify the authenticity of diamonds. Visible light and audible sound. No waiting time between tests. Metal detector - intermittent beep. Diamond detection - continuous beep. Power supply: 3 AAA alkaline batteries. (Low battery indicator). Add to cart
In Stock Testing and Gemology Presidium electronic gemstone gauge PEGG 02262 €398.90 Presidium caliper in digital version to measure precious stones, which directly converts the weight to carats. Using solid-state electronics to accurately measure to 1/100mm, Clear and visible high-tech digital display for easy reading of measurements. Allows for easy measurement of mounted gemstones. Add to cart
In Stock Gemmology Diamond and moissanite tester PRESIDIUM Adamas 02253 €350.00 Dynamic LED display. Diamond and Moissanite Checker Allows you to change the probe tip at any time, without having to return the device to the manufacturer. Adamas introduces the first improved and perfected microtip as small as 0.45mm for the measurement of diamonds and bodies as small as 0.01ct. (optional accessory). Dynamic LED display and an ergonomic... Add to cart
In Stock Gemmology Diamond and moisanite multi tester Presidium 02264 €315.00 Pocket-sized instrument that instantly identifies metals, imitations, diamonds and mossanites based on their thermal and electrical properties: Exact diamond test from 0.02 ct Clear and visible display to facilitate the reading of the measurements Up to three hours of continuous use. three AAA batteries Waiting time: 10 min from the last measurement. Add to cart
In Stock Gemmology Analogical Presidium Leveridge caliper Presidium 02256 €254.80 Presidium is the world's leading manufacturer of gemological instruments that test and measure diamonds and gemstones. The Leveridge analog gauge can measure from 0.0 to 23mm in 0.1mm divisions. Easy to read millimeter and carat scale. Features a patented anvil with new non-metallic, lubrication-free rack and pinion technology that resists wear while... Add to cart
In Stock Gemmology Presidium Leveridge Gauge with Weight Calculator 02257 €427.00 PGCG MODEL Another leading product from PRESIDIUM INSTRUMENTS. The Presidium Gem Computer Gauge gives an estimate of weight and identifies gemstones much more accurately. Allows you to identify an unknown gemstone by entering its size and weight. Add to cart
In Stock Casting and melting Argentum woven plastic sacks 22,7 kg. 00444 €45.37 Especially suitable for silver, and can also be used in brass or bronze. With setting retardant agents and grain refiners that facilitate the creation of smooth and homogeneous surfaces, thus eliminating cleaning problems. ATTENTION: due to its high weight, this article carries a supplement for shipping costs of €8. Add to cart
New In Stock Watch battery Maxell LR43 1.5 V battery Pack of 10 units PMX043 €2.41 Maxell battery for watches and calculators in blister of 10 units. Mercury free. Add to cart
In Stock Casting and melting Coating "ULTRAVEST" Ransom&Randolph 22.7 KGS. 00430 €62.90 Product for casting GOLD, SILVER, BRASS, BRONZE... Easy cooling and easy cleaning, which reduces the loss of precious material. Valid both in manual foundries and in centrifugal or automatic vacuum machines. ATTENTION: due to its high weight, this article carries a supplement for shipping costs of €8. Add to cart
In Stock Casting and melting Ransom&Randolph "PLASTICAST" coating 22.6 kg. 00429 €94.03 Compound for the treatment of rapid prototyping parts using wax or resins, as it withstands excess tension, avoiding breakages that render prototypes useless. Maximum temperatures: 760º. Valid in manual or motor casting. %13 RANSOM, ULTRAVEST%13. ATTENTION: due to its high weight, this item carries a shipping cost supplement of €8. Add to cart
In Stock Gemmology Presidium Gem Tester II Color Diamond Tester 02263 €304.20 Retractable thermoelectric probe tip, ensures constant pressure between probe and gemstone Thinnest probe tip in the industry (0.6mm) for gems up to 0.02 carats Metal alert buzzer to ensure the probe tip is in contact with the gemstone under tes analog dial. Built-in calibration and glass test (CAL) disks for reference Add to cart
In Stock Gemmology Presidium Duo Tester II Diamond Tester 02260 €494.00 Presidium Duo Tester II II is the only diamond tester on the market that combines two testing methods for gemstones. The Duo Tester II differentiates between genuine diamonds based on two parameters: thermal conductivity and reflection indices. Dipped or covered gems can also be tested with the Presidium Duo Tester. Add to cart
In Stock Gemmology Colors Gemstone Tester PRESIDIUM Gem indicator PGI 00273 €337.00 Portable digital tester for colored stones, which differentiates up to 31 different types of colored gems based on their thermal conductivity Selection between a range of 12 common colors, achieving more precise results. 0.45mm tipped probe for testing 0.2ct gemstones. Retractable thermoelectric tip to maintain constant pressure against the stone Add to cart
In Stock Gemmology Presidium ARI Portable Diamond Verifier 02258 €1,275.00 Identifies colorless diamonds against lab-grown CVD/HPHT diamonds and all types of moissanites, including newer "low conductivity" moissanites. For testing loose and mounted stones, including closed-set jewelry. Instant results in 3 seconds. Replaceable optical probe tip technology. Add to cart
In Stock Gemmology Presidium refractive index Meter II 09028 €490.00 The refractometer made by Presidium can measure the rate of light refracted through gemstones such as diamonds or moissanites. Wide range of RI (refractive index) values from 1000 to 3000. Add to cart
New In Stock Gemmology Presidium Sam Diamond and Moissanites Tester 02272 €398.90 Presidium tester with highly sensitive thermoelectric probe tip to identify diamond against wider range of moissanites, especially the new "low conductivity moissanite" and other diamond simulants. Add to cart