Natural diamonds are crystals grown by nature deep in the earth, they take 2 to 3 billion years to grow. Synthetic diamonds are crystals grown by man in a laboratory (using the same formula nature uses), they take a few weeks to grow. Synthetics and naturals are just about identical. That is why it is so difficult to tell them apart; that is why these testers are expensive.
"Synthetic" is the scientific term. Colloquially we say lab-grown or manmade. Here, I shall say, synthetic because it is easier than saying synthetic / lab-grown / manmade each time.
If you are a diamond dealer and you know you have a diamond and just want to know if it is a synthetic diamond or a natural diamond, test it on the Ari - because that is what the Ari is for: to distinguish synthetic diamonds from natural diamonds.
If you are not a diamond dealer and have no idea if the stone is diamond, you must first test it on any simple diamond-only tester first; if the stone shows up as Diamond then it might be diamond or it might be Moissanite (because simple diamond-only testers cannot tell the difference) - now test it on the Ari. (Moissanite is a synthetic stone, it is not diamond).
If you don't already have a simple diamond-only tester, you can get one for free when you buy an Ari - if you select it from the Free Gift options.
The Ari will tell you if the stone is Moissanite, it will tell you if the stone is likely to be a natural diamond, it will tell if the stone is likely to be a synthetic diamond.
This is my favourite synthetic-diamond tester.
- comfortably handheld (most of these testers are either bench models or are "just about" small enough to hold in the hand)
- can test any stone mounted in jewellery (most of these testers are either for loose stones only, or can only test stones in small rings with open settings)
- also tests for Moissanite (this is essential if you don't already have an expensive muti-tester diamond tester)
- fastest response time (test-result in 3 seconds)
- left-handed or right-handed use
- one year guarantee
See our guide to testing synthetic diamonds.
Turn it on, wait 10 seconds for it to warm up, place the probe in the centre of the stone as instructed on the display, the display then indicates one of the following:
CVD / HPHT / Type IIa diamond
CVD/ HPHT are two are methods of growing diamond = synthetic
Type IIa diamond is a very rare type of natural diamond that will show up as 'synthetic' on a tester
By "diamond" they mean natural diamond.
Moissasnite is not diamond (neither natural diamond nor synthetic diamond), but it is useful to be able to detect these because they show up a diamond on cheap diamond-only testers.
You notice that there is no reading not diamond; if you are not a diamond dealer or experienced jeweller you must test the stone on a diamond tester first. Testing non-diamonds on a Synthetic Diamond Tester can give incorrect readings.
Size 190mm X 46mm (1.2 inches) X 25mm
Tests stones from 0.02 to 10 carats incl. mounted stones in any setting
Tests stones of colour D to J
Tests round (brilliant-cut) stones that are perfectly polished
Start-up time 10 seconds
Testing time 3 seconds
Power: three AAA batteries (supplied) or any USB power source (USB cable supplied)
Battery life: 4 hours of testing
Auto-power-off yes, if used on battery power it turns itself off after 10mns with no activity.
ACCESSORIES / PRESENTATION
Neat heavy-duty carrying pouch
USB power cable (for use instead of batteries)
Gives correct results about 95% of the time (6% false positive rate, 4.5% false negative rate).
All equipment and materials must be used in conjunction with the user's skill, knowledge and experience. Under no circumstances shall QUICKTEST be liable for direct or indirect loss sustained in connection with any item. It is your responsibility to regularly check equipment against known samples, to ensure that it is working correctly.
QUESTIONS & ANSWERSAsk a Question
Does it test mounted stones too?
Yes, that is what is so good about this one, it can test any mounted stones (other models either don't test mounted stones at all, or are limited to small rings).