4.05 ct Yellow Natural Unheated Sapphire

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What an incredible find. This intense yellow 4 carat yellow sapphire is completely natural and untreated. Yellow colour such as this is rare to come by in sapphires without any chemical treatments and to find it in this size and clarity is even more good reasons to celebrate.  

We must say that photographing yellow sapphires is not the easiest as it it captures black reflection of the camera. There is no black in the stone of course but pure brilliance and sparkle of yellow. 

Please continue to watch the video. 

Sapphires like this gets our heart racing every time we look at it.

It will make a stunning engagement ring or gift to celebrate a special occasion of course. 

Custom sapphire engagement ring design ideas with this magnificent yellow sapphire;

  • This sapphire of course would look great in a diamond halo in white gold, could go with double halo as well. 
  • With sparkle like this you can set the sapphire in a simple yet elegant solitaire yellow gold ring, set in claws to really outline the gemstone. 

Quality of our gemstones speaks for themselves. 

Certificate will be uploaded as soon as possible. 


Species: Natural Corundum
Colour: Yellow 
Carat: 4.05
Shape & Cut: Rectangular Radiant Cut 
Clarity: Eye Clean
Dimensions (mm):    

8.53 x 7.50 x 6.16

Enhancement: None
Origin: Sri Lanka

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.