|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
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Yes, it is possible to test the Gems that you receive for authenticity.
Simple instrument, easy to use, fun and comes with "tech support".
HERE ARE THE Manufacturer's Specs:
Each gem has a typical refractive index due to its chemical composition and crystallization structure. The gem refractometer is a primary and useful tool in identifying and authenticating polished precious and semi-precious gemstones as well as observing the optical properties and structure of gemstones. It can be used to measure R.I. to many minerals in crystal form as long as the crystals have a flat and polished face. The included contact liquid or RI oil is needed to create contact between the stone and the prism glass to measure or test the Refractive Index of faceted stones, its transparency or opacity, beauty, durability and scarcity. Through the parameters you can check if the gem is an anisotropic or an isotropic stone, uniaxial or biaxial photopositive or photonegative. The built-in LED light also aids in idenfying the refractive index (RI), quality and category of gemstones. Moreover, this gem refractometer can also be used to measure the index of double refraction.
Heavy duty, highly accurate and reliable
Compact design and lightweight
Accuracy : ±0.02 RI
Illumination : Built-in LED illumination with on/off switch
Measuring range : 1.30 - 1.81 RI
Minimum division : 0.01 RI
Contact Oil: FULL SCALE refractive index (1.81 RI) oil (included in 2ml bottle)
Filter : Polarizing filter
Power source : 3 x 4.5V button battery (included)
Item size : approx. 115 x 35 x 63mm
1 x Gem Refractometer (main unit)
1 x 2ml bottle FULL SCALE refractive index (1.81 RI) oil
3 x 4.5V button battery
1 x Soft carrying bag
Standard colored factory packaging box
Looks complicated, it is not.
Fun, lots of tech support and guarantees value of items that you purchase.
Guaranteed to be 100% delightful.
Guaranteed to be natural.
100% money back if not thrilled with this beautiful gem.
Gemstar makes substantial investments
in photographic equipment to allow you
the best possible view of your purchases.
FREE SHIPPING ON ALL ORDERS.
PLEASE MAKE PAYMENT WITHIN THREE DAYS OF PURCHASE UNLESS PAYMENT ARRANGEMENTS ARE MADE WITH GEMSTAR. THANK YOU FOR YOUR BUSINESS.
For Gemstar’s feed back………… press here
GEMSTAR QUALITY CONTROL
We take great care to inspect and accurately represent all stones placed for sale. Gemstar uses the following to insure the accuracy of our offerings: Polariscope, Refractometer, Chelsea Filter, 10 To 60 Power Gemscope, Digital Calipers, High Megapixel Digital Photography, Assorted additional equipment. All Gemstar items are guaranteed.
On a very, very infrequent basis, stones of many species are treated with laboratory "hocus pokus". All stones are examined under 30 power magnification for any trace of these treatments. Stones that show treatment are clearly stated.
Stones of many types can be laboratory created. Our equipment is designed to help to detect these. Gemstar never sells laboratory imitation stones, only natural stones that have beauty and are suitable for elegant jewelry applications where the fabricator wants genuine, valuable, natural materials that compliment their hard work and effort.
Nothing is more disappointing than to get something that is not accurately represented. All photos are of the actual stones and are never computer enhanced. Any details that we become aware of that effect the quality, durability or value of the Stones are clearly stated.
Shipping is free for all items. Gemstar reserves the right to combine purchases into one assignment for convenience and simplicity. All shipments include descriptive information.
GUARANTEES / RETURNS
Should you ever be disappointed with an item purchased from Gemstar, you have a 10 day period to provide notification. Should you elect to submit stones for independent certification this period can be extended for an additional 45 days provided that you notify us of intent to certify within the initial 10 days period.
All items have an unconditional money back guarantee subject only to the terms above.
We love positive feedback and will make every effort to insure that you are pleased with your purchase. If you like the service, and the materials you receive, please tell everyone. If you have concerns please notify us and allow us to make you a happy client.
If you get to the Big Island of Hawaii come visit with us.
Good luck bidding. (Look forward to outstanding merchandise and superior service.)
|Starts||3rd Dec 2016 8:02pm PST|
|Ends||4th Dec 2016 8:00pm PST|
|Standard Shipping||$0.00||21 Days|
|Shipping Insurance all providers $7.29 (optional)|