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21.882 Sprue Base, for 3-3/8" Perorated Flask- Grobet # 21.882
21.882 Sprue Base, for 3-3/8" Perorated Flask- Grobet # 21.882
Used with perforated flasks, # 21.705.
Used with perforated flasks, # 21.705.
Our price: $4.00
51.0565 Diamond Sieves - Set of 20 Plates Grobet
51.0565 Diamond Sieves - Set of 20 Plates Grobet
Special order, please allow 7-10 days.
Hand-made sieves to sort rough and polished diamonds. Complete set supplied in zippered carrying case. Chart shows plate size of stones per carat; weight and size in millimeters. Each with 21 plates, 0-20. 2 5/8" diameter.
If not in stock when you order, please allow 7-10 days to come in.
Special order, please allow 7-10 days.
Hand-made sieves to sort rough and polished diamonds. Complete set supplied in zippered carrying case. Chart shows plate size of stones per carat; weight and size in millimeters. Each with 21 plates, 0-20. 2 5/8" diameter.
If not in stock when you order, please allow 7-10 days to come in.
Our price: $154.95
56.672 GXL Brand! NEXT: GOLD Testing Sensor-- Special Order! Grobet
56.672 GXL Brand! NEXT: GOLD Testing Sensor-- Special Order! Grobet
This is the gold testing sensor-- for the NEXT Tester-- Special order, please allow 7-10 days to come in.
Not returnable.
This is the gold testing sensor-- for the NEXT Tester-- Special order, please allow 7-10 days to come in.
Not returnable.
Our price: $55.15
56.705 Set of 9 Testing Needles for 4, 6, 8, 10, 12, 14, 16, 18 & 20 Karat Gold,Grobet
56.705 Set of 9 Testing Needles for 4, 6, 8, 10, 12, 14, 16, 18 & 20 Karat Gold, Grobet
One in stock at this special price of 15% off, as of March, 2021- then special order.
Used to determine karat content of gold. Needles and item to be tested are rubbed on test stone and treated with acid to determine match.
Set of 9 Testing Needles for 4, 6, 8, 10, 12, 14, 16, 18 and 20 Karat Gold
One in stock at this special price of 15% off, as of March, 2021- then special order.
Used to determine karat content of gold. Needles and item to be tested are rubbed on test stone and treated with acid to determine match.
Set of 9 Testing Needles for 4, 6, 8, 10, 12, 14, 16, 18 and 20 Karat Gold
Our price: $110.88
Market price: $130.00
save 15%
56.707 Set of 5 Testing Needles for 8, 10, 12, 14, & 18 Karat Gold, Grobet
56.707 Set of 5 Testing Needles for 8, 10, 12, 14, & 18 Karat Gold, Grobet
One in stock as of November, 2020-- then special order.
Used to determine karat content of gold. Needles and item to be tested are rubbed on test stone and treated with acid to determine match.
Set of 5 Testing Needles for 8, 10, 12, 14 and 18 Karat Gold
One in stock as of November, 2020-- then special order.
Used to determine karat content of gold. Needles and item to be tested are rubbed on test stone and treated with acid to determine match.
Set of 5 Testing Needles for 8, 10, 12, 14 and 18 Karat Gold
Our price: $56.88
Market price: $66.35
save 14%
56.735 Presidium Gold Karat Tester- New! Special Order from Grobet
56.735 Presidium Gold Karat Tester- New! Special Order from Grobet
Special order, please allow 7-10 days to come in. No return.
A handy desktop tester estimates the purity of gold alloys from 8K to 24K -- safely and precisely!
The Pesidium Gold Karat Tester (PKT) easy-to-use format uses electrochemical effect to estimate the purity of gold in the unit of Karat. The PKT identifies the Karat of both yellow and white gold and platinum. It also indicates if the material is non-metal.
Special order, please allow 7-10 days to come in. No return.
A handy desktop tester estimates the purity of gold alloys from 8K to 24K -- safely and precisely!
The Pesidium Gold Karat Tester (PKT) easy-to-use format uses electrochemical effect to estimate the purity of gold in the unit of Karat. The PKT identifies the Karat of both yellow and white gold and platinum. It also indicates if the material is non-metal.
Our price: $499.00
56.736 Presidium Diamond & Moissanite Tester- New! Special Order from Grobet
56.736 Presidium Diamond & Moissanite Tester- New! Special Order from Grobet
NEW from Presidium!
Adamas -- The World’s First Diamond and Moissanite Tester with Interchangeable and Micro Probe Tips
Easy-to-use interchangeable probe tips
World’s only micro probe tip
Industry’s thinnest probe tip for testing diamonds
Authenticate diamonds as small as 0.01 carats
Conveniently replace worn or damaged probe tips yourself
Built-in memory chip stores up to 500 test records
Dynamic display with super bright micro LED for clear, distinct results
Sleek chrome-brushed ergonomic grip
USB port for alternative power source and connectivity
Adamas -- Where leading quality and technology meet
Specifications:
Length: 189 mm (7.44 inch)
Width: 36 mm (1.42 inch)
Height: 28 mm (1.10 inch)
Weight: 78.5 grams (2.77 oz.)
(without batteries)
Special order, please allow 7-10 days to come in. No return.
NEW from Presidium!
Adamas -- The World’s First Diamond and Moissanite Tester with Interchangeable and Micro Probe Tips
Easy-to-use interchangeable probe tips
World’s only micro probe tip
Industry’s thinnest probe tip for testing diamonds
Authenticate diamonds as small as 0.01 carats
Conveniently replace worn or damaged probe tips yourself
Built-in memory chip stores up to 500 test records
Dynamic display with super bright micro LED for clear, distinct results
Sleek chrome-brushed ergonomic grip
USB port for alternative power source and connectivity
Adamas -- Where leading quality and technology meet
Specifications:
Length: 189 mm (7.44 inch)
Width: 36 mm (1.42 inch)
Height: 28 mm (1.10 inch)
Weight: 78.5 grams (2.77 oz.)
(without batteries)
Special order, please allow 7-10 days to come in. No return.
Our price: $419.00
56.737 Presidium Colored Gemstone Indicator- New! Special Order from Grobet
56.737 Presidium Colored Gemstone Indicator- New! Special Order from Grobet
NEW from Presidium!
The only handheld digital tester created specifically for colored gemstones.
Get intelligent results in less than 6 seconds with this simple-to-use, easy-to-maintain colored gemstone indicator.
Tests for 31 types of gemstones based on their thermal conductivity
Color input function of 12 common colors achieves accurate results
Easy-to-read clear digital LED screen
Presidium patented refined changeable probe tip ensures minimal equipment down time
The Presidium Gem Indicator probe consists of two linked thermometers; one that is heated electronically, while the other is cooled by the gemstone that is being tested. The difference in temperature creates an electrical output, which is then amplified and displayed on the new digital LED display.
Features:
Industry's thinnest probe tip (0.45 mm) for testing gemstones from 0.2 ct
Patented refined probe tip
Metal buzzer alert and low battery indicator
Sleek chrome-brushed ergonomic grip
USB port for alternative power source and connectivity
Specifications:
Length: 170 mm (6.69 inch)
Width: 31 mm (1.20 inch)
Height: 28 mm (1.10 inch)
Weight: 55 grams (1.94 oz.)
(without batteries)
Special order, please allow 7-10 days to come in. No return.
NEW from Presidium!
The only handheld digital tester created specifically for colored gemstones.
Get intelligent results in less than 6 seconds with this simple-to-use, easy-to-maintain colored gemstone indicator.
Tests for 31 types of gemstones based on their thermal conductivity
Color input function of 12 common colors achieves accurate results
Easy-to-read clear digital LED screen
Presidium patented refined changeable probe tip ensures minimal equipment down time
The Presidium Gem Indicator probe consists of two linked thermometers; one that is heated electronically, while the other is cooled by the gemstone that is being tested. The difference in temperature creates an electrical output, which is then amplified and displayed on the new digital LED display.
Features:
Industry's thinnest probe tip (0.45 mm) for testing gemstones from 0.2 ct
Patented refined probe tip
Metal buzzer alert and low battery indicator
Sleek chrome-brushed ergonomic grip
USB port for alternative power source and connectivity
Specifications:
Length: 170 mm (6.69 inch)
Width: 31 mm (1.20 inch)
Height: 28 mm (1.10 inch)
Weight: 55 grams (1.94 oz.)
(without batteries)
Special order, please allow 7-10 days to come in. No return.
Our price: $295.00
Market price: $300.00
save 2%
56.762 G-XL-18 Professional Gold Tester from TRI-Electronics
56.762 G-XL-18 Professional Gold Tester from TRI-Electronics
Six to eighteen karat range, state-of-the-art electronic gold testing technology from Tri-Electronics. Technological breakthrough that allows for the measurement of low to high karat gold products, assuring the buyer of gold content in the most critical gold alloys. Measures 12" x 10" x 3". UL listed. Three year warranty. Operates using two 9 volt batteries (not included). 110 Volt
Distributed by Grobet-- special order, please allow 7-10 days.
Six to eighteen karat range, state-of-the-art electronic gold testing technology from Tri-Electronics. Technological breakthrough that allows for the measurement of low to high karat gold products, assuring the buyer of gold content in the most critical gold alloys. Measures 12" x 10" x 3". UL listed. Three year warranty. Operates using two 9 volt batteries (not included). 110 Volt
Distributed by Grobet-- special order, please allow 7-10 days.
Our price: $602.10
AL100 Rich Yellow Alloy- 10K 14K --1 oz-- from United
AL100 Rich Yellow Alloy- 10K 14K --1 oz
From UPM- United Precious Metals
A premium look designed for 10K & 14K casting. Less porosity, cleaner cast. Priced per ounce.
Simply add United's alloy to fine gold to produce different karats and colors. The alloys are made of the purest metals available. it is important that only .999 fine gold be used, since any contamination will affect color and ductility.
Many more alloys in stock-- just not all on the web-- please call!
From UPM- United Precious Metals
A premium look designed for 10K & 14K casting. Less porosity, cleaner cast. Priced per ounce.
Simply add United's alloy to fine gold to produce different karats and colors. The alloys are made of the purest metals available. it is important that only .999 fine gold be used, since any contamination will affect color and ductility.
Many more alloys in stock-- just not all on the web-- please call!
Our price: $13.95
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