RGTL - Rockland Gem Testing Laboratory

RGTL - Rockland Gem Testing Laboratory Welcome to RGTL - Your Trusted Gem Testing Experts! Providing comprehensive gem testing services.

15/05/2025

they thought was a SPINEL actually turns out to be a “TAAFFEITE ” after the Lab test. it is important to have gemstones properly identified.

www.rgtlgemlab.com
0776 1234 11

15/05/2025

they thought was a Topaz actually turns out to be a “Jermerjavite” after the lab testing. It’s a important to have gemstones properly identified.

www.rgtlgemlab.com
0776 1234 11

Welcome to RGTL, your premier destination for comprehensive gem testing services. With a commitment to accuracy, reliabi...
23/04/2025

Welcome to RGTL, your premier destination for comprehensive gem testing services. With a commitment to accuracy, reliability, and expertise, RGTL offers a wide range of testing solutions to meet all your gemstone evaluation needs.
Whether you’re a collector, jeweler, or enthusiast, trust RGTL to provide precise and thorough analysis to ensure the authenticity and quality of your precious stones.
Hotline : +94776123411

Microscopic Photography of the Gemstones.Gem inclusions are mineral crystals or cavities filled with fluid and/or gas th...
31/10/2024

Microscopic Photography of the Gemstones.
Gem inclusions are mineral crystals or cavities filled with fluid and/or gas that occur in a host gemstone. Many gems contain microscopic inclusions that can reveal much about the host material.
As a result, the use of the microscope (or loupe) to examine these inclusions offers one of the most important methods available for gem identification.

Inclusions are important for determining the natural, synthetic, or treated character of a gem, and for establishing the likely geographic origin of a valuable colored stone. In addition to their usefulness for identification, inclusions cause certain distinctive and desirable optical phenomena such as asterism and chatoyancy, as well as some of the features used in clarity grading.

In this new installment of “Colored Stones Unearthed,” we will discuss inclusions in gems—how they form, how they are studied, and what they mean not only for gemologists but also for geoscientists.

- Rockland Gem Testing Laboratory
www.rgtlgemlab.com
[email protected]
077 612 3411

We are thrilled to announce that RGTL has been awarded associate membership with the GEM-A (Gemological Association of G...
03/09/2024

We are thrilled to announce that RGTL has been awarded associate membership with the GEM-A (Gemological Association of Great Britain).

This prestigious recognition solidifies our commitment to providing the highest quality gemmology services and demonstrates our adherence to international standards.
As an associate member, we have access to exclusive resources and training opportunities that will further enhance our expertise and capabilities.
rgtlgelmab.com
[email protected]

Characteristic by synthetic corundumare several curved striae and spherical gas bubbles and may be round in cross-sectio...
29/08/2024

Characteristic by synthetic corundumare several curved striae and spherical gas bubbles and may be round in cross-section, but elongated and they may be found in groups of many tiny bubbles using a microscope other characteristic marks are flask or tadpole shape inclusions.

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Mail : [email protected]

Someone brought this to me as chrysoberyl due to its color, but after microscopic observation, I realized it’s actually ...
28/08/2024

Someone brought this to me as chrysoberyl due to its color, but after microscopic observation, I realized it’s actually man-made glass, not a cream soda. 😅
rgtlgemlab.com

“Emerald “Two-phase inclusion can be found in Colombian emeralds as well as those from other regions. In a two-phase inc...
27/08/2024

“Emerald “
Two-phase inclusion can be found in Colombian emeralds as well as those from other regions. In a two-phase inclusion, we have a gas bubble trapped in liquid, which differs from the single-phase inclusion by not containing a mineral element.

“ The internal world of gemstones 💎” Negative crystal inclusions in sapphire are voids or gas-filled cavities within th...
21/08/2024

“ The internal world of gemstones 💎”
Negative crystal inclusions in sapphire are voids or gas-filled cavities within the crystal structure. Unlike positive inclusions, which are solid particles or other minerals, negative inclusions appear as clear or translucent spaces surrounded by the sapphire's crystalline matrix.
These voids can affect the gemstone's clarity and light performance, and may also influence its overall durability.

Gem Lab
rgtlgemlab.com

Address

Rockland Road
Maggona
12060

Opening Hours

Monday 09:00 - 17:00
Tuesday 09:00 - 17:00
Wednesday 09:00 - 17:00
Thursday 09:00 - 17:00
Saturday 09:00 - 17:00
Sunday 09:00 - 17:00

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