

💎 Don’t just guess—verify your sparkle with pro precision!
The Siziviki Diamond Tester is a professional-grade gemstone detector designed exclusively for jewelry. Featuring a high-accuracy sensor with 9+ light and beep signals for diamonds and moissanite, it requires a 30-second preheat and precise calibration for optimal performance. The kit includes a 9V battery, testing platform, and comprehensive user manual plus video guide, ensuring reliable differentiation between genuine diamonds and imitations like cubic zirconia or glass. Ideal for jewelers and discerning buyers seeking trusted authenticity verification.





| ASIN | B0B5DHYMWX |
| Adjustable Length | Yes |
| Batteries Required? | Yes |
| Best Sellers Rank | #2,184 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #2 in Jewelry Diamond Testers |
| Brand | Siziviki |
| Color | Black |
| Customer Reviews | 4.0 4.0 out of 5 stars (704) |
| Date First Available | June 29, 2022 |
| International Protection Rating | IP65 |
| Item Weight | 3.52 ounces |
| Item model number | 20 |
| Manufacturer | Siziviki |
| Material | Plastic |
| Power Source | Battery Powered |
| Product Dimensions | 5.31"L x 0.87"W x 1.57"H |
| UPC | 618087178460 |
L**M
Works well if you keep your finger on the metal plate
This does seem to work at least to let you know if it is diamond versus rhinestone. The instructions are missing information that almost made me return it... You need to have your finger on the metal plate and hold the item in your other hand for the metal alert to work. Using this information made the detector function properly and accurately.
L**X
It works.
It works. I’ve tested my real lab diamond earrings and blood diamond bracelets, and then I tested a cubic zirconia necklace and of course it did not pass! Great product.
N**G
Do not buy!
Please don’t waste your money. I followed the instructions and my tester did not work. I was unable to return it in the usual way, which would be to go to Kohl’s. I would give them a zero star review if I could.
C**S
Great for your jewelry 😁
This is great for you to check your jewelry. It's a great value. Not sure why the battery died so quick. It seems to be accurate.
D**Y
Diamond Tester
Ok for the price
R**R
Fun to play with but questionable accuracy
Kind of fun to play with for the price. I'm not sure I would bet my life on the accuracy of the results. It's fickle. I think it's kind of fun for reassurance, but if I really wanted a true answer, I would probably still have to take it to a professional.
C**S
Accurate dual measurements
This is electro current conductive and thermal so its the best for antique pieces and irregular cuts. Super fun you have to read the instructions for it to work accurately. I have several pieces fake and real and it works (been messing with it for like 30 mins straight just listening to the beeping lol) whoever says it's inaccurate just didnt read the instructions or interpret them correctly. Worked as expected no red flags. 5 stars
J**E
It's fragile
Be gentle using this
K**G
Nice true
F**H
Broken nib and battery don’t work
S**A
Bad product
M**R
Gems stone per kaam nhi krta
A**R
Not working
Trustpilot
1 week ago
5 days ago