2.43 ct Blue Emerald Cut Natural Unheated Sapphire

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Stunning natural unheated blue sapphire from Sri Lanka.  You can see many natural “imperfections” visible in the enlarged photo which are somewhat visible at eyesight. The natural sapphire is stunning Ceylon rich sky blue in colour. At almost 3 carat, this emerald cut natural Ceylon sapphire is the perfect centre gemstone for an alternative sapphire engagement ring. Imagine this set in white gold; it’s piercing sky blue will be the highlight. There are many custom jewellery designs you can do with this sapphire. Emerald cut is perfectly chosen for this sapphire to highlight its colour. It is hand cut to perfection by our incredible cutter in Sri Lanka. 

This is completely natural untreated blue sapphire although we did not have it certified. We can obtain the certification for you at an additional cost should you wish. However, rest assured this is free of any treatments and we guarantee that. 

Unheated means this sapphire has not had any treatments including the common heat treatments. 

Perfect centre gemstone for a custom sapphire engagement ring. 

If you haven't got a jeweller of your own, talk to us about creating a special custom jewellery piece with this gemstone with one of our partnering jewellers.

Free shipping worldwide. Domestic over-night delivery. International shipments via Fedex which takes less than 5 days for most destinations.  

Don’t miss out on this incredible fine sapphire. 


Species: Natural Corundum
Colour: Blue
Carat: 2.43
Shape & Cut: Emerald Cut 
Clarity: Slight Inclusions
Dimensions (mm):

9.32 x 6.03 x 4.25

Enhancement: Unheated / None
Origin: Ceylon

Free of Treatment 

According to GIA, 95% of sapphires have been treated in some form. Unheated means this sapphire has not had any treatment, including the common heat treatment, and therefore the colour and cleanliness is completely due to natural formation and survival of the gem over many thousand years.


When we source our sapphires we make sure they are of the finest quality and will be the highlight, in their own right, irrespective of the jewellery design. Each gemstone is cut to enhance its natural beauty, and in such a way that it may be set in the simplest solitaire engagement ring setting to stunning effect. 

Independently Certified 

Each of our sapphires are independently certified.  

Ethically Sourced

Deliqa Gem sapphires are ethically sourced from Sri Lanka, Madagascar, Tanzania, Mozambique and Australia through our close, personal, long term relationships from family run mines where the environment and the people are cared for and ethical trading is in practice.

We are truthful of the origins of our sapphires; most sapphires from various origins are branded under Ceylon Sapphires as that is what the customer has heard most about. You will see our sapphires are proudly from various origins; we only put our name to anything that is ethical. More importantly we love being inclusive and providing opportunities to all we can in the best way we know how. 

We mentor all we work with for their betterment. Our difference is to create a living for all we work with, and not just ourselves. 

Each of Deliqa Gems sapphires have a personal meaning to ourselves and offered with a magnitude of responsibility to everyone. 

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Our Contribution to the Community 

Our contribution to the community has increased consistently as our young business grew over the past few years. We contribute to emergency funding required during floods in Sri Lanka, which occurs annually due to tropical weather conditions and affect gem mining areas. Our emergency funding assist families with food, shelter and more importantly children with new books and school supplies. We also support Foundation of Goodness, an organisation helping to bridge the gap between the urban and rural sectors in Sri Lanka and empowering over 25,000 lives in 50+ villages. 

We have bigger dreams to achieve; our aim is to create a bigger contribution to the community.