Blue Sapphire Platinum Engagement Ring

Please note that this item has been sold and if you would like to acquire a similar ring please feel free to contact us by email at sales@thainativegems.com.  

Also, we don’t keep these items in stock and will have to custom make it, which usually takes 2 to 3 weeks to source & manufacture a ring.

For this product, we custom-made this engagement ring with GIA certified 4.58 carats Vivid Cornflower Blue Sapphire which we sourced from the wholesale market – The pictures & video used in this post were the custom-finished rings that our client received and was very satisfied with.

Center Stone: GIA Natural Blue Sapphire (Normal Heat Treatment)
Weight: 4.58 carats
Per Carat Price: US$1,600
Shape: Oval Sapphire
Dimensions (mm): Center Sapphire is  11.61 x 7.97 x 5.87 mm, Side diamonds 2.50 mm
Color/Intensity: Blue/ Vivid
Clarity: Transparent (100% Eye-Clean)
Cut:  Oval Brilliant Step Cut
Ring Design Simple Solitaire Halo Diamond Ring
Ring Size Range:  50 mm (inner circumference) or US Size 5 1/4
Platinum Weight: Platinum (PT950) – around 8.39 grams


A “Royal” Blue Sapphire Engagement Ring

This design is inspired by the late Princess Diana’s engagement ring, which is now Princess Katherine’s ring.

A nice blue sapphire is actually more difficult to find than a classical diamond and having a blue beauty on your finger is so much more attractive!

If interested in different carat weights, do let us know and we can search in the wholesale market for you.

This particular engagement ring was custom made with a GIA-certified 4.58 carat Vivid Cornflower Blue Sapphire center, supported with 0.83-carat halo diamonds, and Platinum (PT950).

The blue sapphire is 100% eye clean and has been certified by world-renown GIA (Gemological Institute of America) as ‘Heated.’

This means the stone has been subject to normal heat treatment which is normal with 99% of all blue sapphires in the market.   Also, there is no advanced treatment like beryllium or lead glass-filled which is a lot cheaper.


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