Gemstone Guide
Understanding Natural Gemstones
At Akihiro Gems, we believe that an informed client makes the most meaningful choice.
This guide is designed to help you understand natural gemstones, their qualities and what truly defines their value.
Every gemstone is unique shaped by nature, time and geological conditions which is why we operate on a consultation and quotation basis rather than fixed pricing.
What Is a Natural Gemstone?
A natural gemstone is a mineral or organic material formed naturally within the earth, without artificial creation. These stones may be cut and polished but are not man-made.
Examples include:
Sapphire
Ruby
Emerald
Spinel
Garnet
Tourmaline
Natural gemstones often display subtle inclusions, colour variations, and internal characteristics that confirm their authenticity.
The 4 Key Factors That Determine Gemstone Value
Colour
Colour is one of the most important value factors.
It includes:
Hue (the actual colour)
Tone (light to dark)
Saturation (intensity and purity)
In many gemstones, richer and well-balanced colours are more desirable.
Clarity
Clarity refers to internal features known as inclusions.
Most natural gemstones contain inclusions
Fewer or less visible inclusions usually increase value
Some inclusions help prove the stone’s natural origin
Each gemstone must be assessed individually.
Cut
The cut determines how well a gemstone reflects light and displays brilliance.
Common cuts include:
Oval
Cushion
Round
Emerald cut
Pear
Custom cuts
A well-executed cut enhances beauty, regardless of stone size.
Carat Weight
Carat refers to weight, not size.
Larger gemstones are rarer
Price does not increase linearly
Two stones of equal carat can vary greatly in value depending on quality
This is why we avoid fixed pricing.
Gemstone Treatments – What You Should Know
Some gemstones undergo treatments to improve appearance or durability.
Common treatments include:
Heat treatment
Oil or resin filling
Surface enhancement
At Akihiro Gems, we believe in full transparency.
Any known treatment is clearly disclosed during consultation and documentation.
Certification & Documentation
Certification provides confidence and clarity.
Depending on the gemstone, we can supply:
Weight (carat)
Dimensions (mm)
Colour and clarity description
Treatment status
Origin information (when applicable)
Independent laboratory certification can be arranged upon request.
Ethical Sourcing Matters
Our gemstones are sourced through trusted partners in Sri Lanka, a country renowned for its gemstone heritage.
We prioritise:
Ethical sourcing practices
Long-term supplier relationships
Responsible trading standards
Each stone is selected with care, integrity, and respect for its origin.
Consultation-Based Selection
Because gemstones vary by:
Size
Colour
Clarity
Cut
Treatment
We invite clients to enquire directly for personalised recommendations and quotations.
This allows us to guide you toward the gemstone that best suits your vision, purpose, and budget.
Enquire with Confidence
If you would like assistance selecting a gemstone or learning more about our collections:
Email: sales@akihirogems.com
WhatsApp: +94 707 725 695
We are happy to assist you with expert guidance and transparent information.