Roughcut Ceylon
1.43 Ct Royal Blue Ceylon Sapphire Unheated Oval Cut
1.43 Ct Royal Blue Ceylon Sapphire Unheated Oval Cut
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Gemstone: Ceylon Sapphire - Corundum
Carat: 1.43
Colour: Royal Blue
Shape: Round
L x W x H (mm): 7.3 x 5.6 x 3.6
Clarity: Vs
Treatment: Unheated
Hardness Mohs Scale : 9
Origin: Always Sri Lanka
Sapphire Description
Presenting an exceptional 1.43 carat royal blue Ceylon sapphire, elegantly fashioned to showcase its colour and perfectly suited for a sapphire ring, engagement ring, or a bespoke fine jewellery creation. This gemstone reveals a rich, balanced royal blue — the most revered colour in Sri Lankan sapphires — with impressive depth and refined brilliance.
What sets this stone apart is its unheated status. Royal blue sapphires of this calibre are most often enhanced through heat treatment, making natural, untreated examples increasingly rare and highly sought after. The fact that this sapphire displays such desirable colour entirely in its natural state elevates its significance, offering both rarity and authenticity that discerning collectors value.
Carefully sourced and hand-selected for its quality, this sapphire represents an outstanding centrepiece for a design that embodies heritage, exclusivity, and enduring elegance.
Imaging Accuracy
Imaging Accuracy
We understand that it can be hard to assess loose sapphires colours from photos alone. All our images and videos are taken by a specialist gemstone imaging company who produce images to 99% colour accuracy with ISO standard natural daylight in high magnification. This ensures you will get the best view for colour, clarity and any visible inclusions.
Whilst this is the most accurate representation of the stones colours, sapphire colours vary depending on the lighting conditions.
Certification
Certification
All our sapphires come certified, guaranteeing authentic natural sapphires from Sri Lanka. This will come in the form of a certificate on delivery of the sapphire. Certain stones may include extra certification by GIA or SSEF Switzerland, this will be highlighted in the description. Please do contact us if you wish to discuss any certifications.
Clarity Rating
Clarity Rating
While some sapphires can appear "eye-clean" (meaning no inclusions are visible to the naked eye), most natural sapphires do contain inclusions, which are considered natural characteristics and not necessarily flaws.
Our sapphires are graded in the below format:
VVS (Very Very Slightly Included):These sapphires have very, very small inclusions that are difficult to see even under 10x magnification.
VS (Very Slightly Included):These sapphires have minor inclusions that are clearly visible under 10x magnification, but they might be difficult to see with the naked eye.
SI (Slightly Included):These sapphires have noticeable inclusions that are easy to observe under 10x magnification, and some may be visible to the naked eye.
I (Included):These sapphires have obvious inclusions that are easily visible under 10x magnification and may affect transparency and brilliance.
