Photographic & Video Logs of

Log of RHDC109 on completion of cutting
Cut Shape : Cushion


Log of RHDC109 in its rough state

Rough Image

ID # RHDC109

Geological History

This beautiful Rhodolite was formed several hundred million years ago in a pegmatitic vein in Tanzania, East Africa. Heated ground waters circulated through rock fractures, dissolving minerals from the surrounding rocks and redepositing them in open spaces like fractures. Amongst these chemicals was one very important component iron. It is this which makes Rhodolite red. It is an impurity that was formed within the garnet crystal and without it the gem would have had no colour. As the rock folded with time, the heat and pressure grew to a level where it was possible for this Rhodolite crystal to form. This remained constant for the many millions of years between that time and the time it was discovered by man. Hundreds of millions of years later this garnet crystal was chiseled from the crevice within which it had lain for so long and carried to the surface by miners in the Kangala area of Tanzania, in East Africa. From there it found its way to Nairobi where it was presented in the offices of Lapigems Gem Company. It was identified as a fine Rhodolite Garnet and cut by Lapigems master cutters into what you see today. A journey of 550 million years has paused here.

Gemstone Reports And Certification

This gemstone has several reports prepared for it by a GIA Gemologist and these reports are shipped with it.

Gemstone Grading Certificate

This certificate is a full and detailed grading report utilizing the Gemological Institute of America Grading system.

 View the certificate for this gemstone

 Learn about the certificate

Personalized History and Registration Report

 View and Print the History Report

This report has been prepared by a GIA Gemologist at Lapigems Gem Company. All gemological tests were performed using current techniques and using current gemological equipment. The gemstone here reported is certified and this report, combined with the printed photo-certificate constitutes a thorough certification of this gemstone from mine to private owner.

Private Ownership Registration
Registered on worldwide gemstone registration service. Registration information only available by password to account holder.

If you purchase this gemstone, full ownership registration and this history information will be stored in your account as a personalized Gem History & Ownership Report

Quality Report

Color - 3.5
Clarity - 4
Cut - 4
Rarity - 3.5

How are these quality allocations reached?

Color Clarity Cut Rarity

Gemstone Grading Report

The gemstone here described has been identified as a natural gemstone and has the following description :

Description : Faceted African Rhodolite
Weight : 21.1 carats
Shape : Cushion
GIA Color Grade : vslpR 6/5more info
GIA Clarity Grade : VVSmore info
Species : Garnet
Variety : Rhodolite Garnet
Refractive Index : 1.762
Cause of Color : Iron
Specific Gravity : 3.84
Optic Character : SR
Crystal System : Cubic
Treatments : None
Country of Origin : Tanzania, East Africa

Mining Report

Date Mined : 12th December 2005
Mining Location : Kangala, Tanzania, East Africa
Type of Source : Primary / Alluvial
Mining Method : Open Cast / Panning
Host Rock : Quartz / Mica
Chemical Composition of rough : Manganese Alluminium Silicate

Gemological Testing Methodology

Gemological Tests performed on this gemstone by a GIA Gemologist include but are not limited to:

Refractive Index, Specific Gravity, Pleochroism, Polariscope to ascertain Optic Character, Spectroscope to ascertain spectrum, Magnification with GIA Microscope using darkfield lighting, Chelsea Filter, Ultraviolet Flourescence.

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Lapigems Gem Company is a member of / staff hold qualifications from the following leading Gemological Organizations