Diamond Testing Equipment

Dynisco is a worldwide leader providing pressure and temperature sensors and analytical instruments. Our pressure sensors provide accurate and repeatable measurements, are designed for high temperatures, and can withstand the most abrasive and corrosive environments. Dynisco also provides design, manufacture, service and support of precision rubber and polymer laboratory instrumentation and data acquisition/analysis software systems.

We are pleased to announce, that to better serve you, Dynisco has realigned the company and the supporting brands into divisions serving specific markets। These markets are Plastics, Rubber, Composites, Industrial, Oil & Gas, and Custom. Dynisco is the leading supplier of Melt Pressure Instrumentation for plastics extrusion applications। The product line consists of a full line of melt pressure transducers and readout / signal conditioning instrumentation. Dynisco also supplies strain gage pressure transducers for hydraulic applications.

Are you having a hard time distinguishing real diamonds from fake stones? No need to worry, as there is a wide range of diamond testing equipment available in the market. These equipments help in verifying the authenticity of diamonds, without one having to acquire any gemological education or experience. This makes diamond testing possible for practically everyone!

Need for a Diamond Testing Equipment

In today's competitive gemstone market, all professional jewelers must own a sophisticated range of diamond testing equipment. This is because traditional testing equipments are not equipped to deal with the growing issues of today, which include the most important need of distinguishing real diamonds from simulants. Simulants are fake or cultured diamonds that are artificially prepared in a laboratory. These resemble real diamonds in several aspects, making it difficult for a traditional tester to distinguish it from a real one.

How Does Diamond Testing Equipment work?

Diamonds have the highest thermal conductivity among precious and semi-precious stones, after synthetic moissanites. A diamond tester comprising a fine-tipped probe helps to determine the level of thermal conductivity. Diamond testers help differentiate diamonds from other simulants, which include CZ (Cubic Zirconia), YAG (Yttrium Aluminum Garnet) and GGG (Gadolinium Gallium Garnet).


However, this thermal conductivity testing device has certain limitations, as it fails to detect thermal inertia in some rare diamonds. This includes the Type IIb diamonds, which are semiconductors and blue diamonds (containing boron), such as the famous Hope Diamond. This results in the device registering these natural diamonds as fake diamonds. Moreover, since diamonds and moissanites have similar thermal conductivity, the device registers moissanites as real diamonds. Hence, using a thermal conductivity device alone could yield inaccurate results.


Hence, it is advisable to use other testing equipment to supplement the thermal conductivity test. This could include tests that measure the optical properties or electrical conductivity of stones.

Diamond Grading Equipment 

Are you looking forward to buy quality proven diamond grading equipment? Everyone is not experienced enough to determine the authenticity of precious stones like diamond, on the basis of the four Cs i.e. color, clarity, cut and carat. So, it is better to buy professional diamond grading equipment to make sure your stones are genuine.

Types of Diamond Grading Equipment

Here are the main types of diamond grading equipment:

Loupe: This magnification device can be used to determine features such as diamond clarity, dimensions, and inclusions. These are available as simple lens or with multiple lenses. Loupes availability in triplet or quadruplet lens system helps provide better focus and enhanced clarity..

Diamond Moissanite Testers: 

: To test the authenticity of your diamond, combine a moissanite tester with your traditional diamond tester. A diamond moissanite tester helps distinguish original diamonds from synthetic moissanites, which largely go unnoticed by traditional diamond testers.

Lamp: 

This convenient fluorescent lamp comes with a magnifier, tray, nipper and a box. This easy-to-use, portable light source with no predominant yellow or blue tint helps determine the diamond quality.

Electronic Diamond Testers: 

These testers use thermal conductivity to test diamonds. Different available models include direct AC current tester and testers with rechargeable batteries. Testers display test results through beeps and lights, making it the best testing aid for even a layperson.

Diamond Gauge: 

This equipment helps in determining the precise measurement of loose and mounted diamonds. This includes stone's cut quality, dimensions and carat weight.
Before grading, the surface of diamonds must be cleaned with a special cloth. You can also boil them in acid or wash them with alcohol. Avoid storing diamonds in anything that is not meant for the purpose. You can buy a specially crafted paper packet ideal for storing diamonds.

Assessing a Diamond Grading Certificate

A diamond grading certificate describes the technical details of a diamond, verifying its quality and identity. However, a diamond grading certificate is provided only for loose diamonds. To assess the certificate, follow these steps:


o Look for the name of the organization that issued it, for example, Gemological Institute of America (GIA) and European Gemological Laboratory (EGL).
o Date of issuance of the certificate


o Check the cut, carat weight, measurement and color
o Check the proportions section.
o Check polish and symmetry
o Check for fluorescence

EGL Diamond Certification

EGL Diamond Certification is done by the European Gemological Laboratory.
The price of diamonds is very much dependent on having a proper certification of that diamond.
A Certification is an assurance of quality. A diamond certification is a detailed diamond quality report issued by an accredited independent gemological laboratory. The most recognized gemological laboratories that provide certified diamond quality reports to the diamond and jewelry industry are listed below.


G.I.A. - Gemological Institute Of America
A.G.S. - American Gem Society
E.G.L. - European Gemological Laboratory
I.G.I. - International Gemological Institute


Certifications verses appraisals: It is vital to understand that appraisals are not the same as certifications and often not as accurate as a certified diamond quality report performed by an independent gemological laboratory. Such a report is based on a mechanical and technical examination of the diamond using verified test and electronic equipment . Appraisals are done individually by an appraiser and are only as accurate as the skill, knowledge and training of the appraiser.


A Certified Diamond Reports should provide the following information:
Shape
Measurements
Weight
Depth Percentage
Table Percentage
Girdle Thickness
Culet Size
Polish
Symmetry
Clarity Grade
Color Grade
Fluorescence
Comments about Diamond
Plot of Internal and External Inclusions


With the EGL certification, the EGL also issues a condensed report on a diamond known as a consultation. The difference between the consultation and the certification is that it does not have depth percentage, table percentage, polish and symmetry or fluorescence grades. And only documents the carat weight, color grade, clarity grade and plotting diagram. This is a quick short analysis useful when purchasing bulk diamonds.


EGL Certified Diamonds wholesale at as much as 20% less than similar clarity & color AGS or GIA certified Diamonds. This seems to indicate the diamond industry's perception that the EGL certification does not quote equal the same standards of accuracy and reliability as say, the AGS or GIA certifications. This price variation can be utilized to find a diamond price below its actual quality but, for the most part, an owner of a diamond will recognize the true characteristics and quality of the diamond and price it accordingly.

Electrical Equipment For Testing

It is not possible to dream of an existence that is devoid of electrical gadgets. These are so intrinsically entwined with our everyday life that we cannot do without their help. These equipments are responsible for making our chores thousand times easier and faster. Electrical test equipments are one such indispensable product without which an ordinary human being's life is likely to become crippled.
Superior quality electrical equipment is usually one that has been made from high quality materials that make them long lasting and capable of taking heavy loads. They are apparently complicated but become easy to use through practice. They are easily available online these days in plenty of websites which offer great discounts and take care of supplies to companies placing orders.


Electrical test equipments can be typically categorized into several categories depending on which type of industry they cater their services to:
* Burn-in test equipments: this particular device is used for the purpose of electrical testing. These are used to examine boards and power chips and mostly used by those who make semi-conductors. Such gadgets are used with the help of voltages, temperatures and power cycling.


* Backplane: these are widely used for networking purposes and relatively more user-friendly as compared to the automatic ones. Resistors and capacitors are tested with the help of these instruments that are similar to printed circuit boards divided into multiple sockets to test different gadgets.


* Battery testers: these examine the performance of fuel cells, check voltage, charge, DC resistance and its temperature and indicate if it due for a change. They are primarily used to test the endurance power and performance quotient of any product.
* Automated test equipment: being the most sophisticated, it is used to measure and test some specific industrial units through computers. Thorough background knowledge about the installation and programming is necessary before one begins using these.
The greatest advantage in using these equipments is that it entails very less human effort and can be repeatedly used. Such automated tools are good for testing interconnections and circuit boards.


In an age dominated by electrical appliances, both in the home and office sector, these testing equipments have grown significantly in value. They are found in batteries, ammeters, locators, testers, gauges etc. At times, electrical appliances come with a label which shows tested along with a date. This means that a Portable Appliance testing device has checked its safety features.


This technology is important to guarantee that any equipment is operationally sound and it is safe for the people to use. This is vital to check if devices are safe to use particularly in case of those equipments which may have the potential to harm.

Medical Laboratory Equipment 

Medical lab equipment may be the most expensive lab equipment to keep on hand. Laboratory rules and state laws strictly govern the handling, storage, and disposal of biological materials. Most scalpels, vials, and other tools for taking samples can only be used once, and must be properly disposed of after coming into contact with blood or other bodily fluids.


Equipment in a medical lab can be divided into two categories: one-use items, and larger machines. The one-use items are syringes, scalpels, vials, and anything else that cannot be used on more than one person, or even for more than one sample. While these items are functional after one use, they pose great risk of cross-contamination. This could result in tests giving a wrong result, or in the worst scenario, infecting another patient.


While most sterilization processes do kill upwards of 99 percent of micro-organisms, there is always a chance--however slim--that a re-used item could be contaminated. In the interest of malpractice costs and professional ethics, anything that touches a patient will usually be thrown out. Medical labs minimize waste from this practice by making parts interchangeable. For example, only a scalpel blade is tossed, while the handle is kept for a new blade.


The remainder of hospital lab equipment is larger machines that do not actually come into contact with body tissue or fluids. This includes centrifuges, spectrophotometers, and other devices necessary for the analysis of microbiological agents. Machines of this nature must be regularly cleaned and sterilized, but do not pose any risk of contaminating other samples with re-use.