Octagon (or Emerald Cut) Blue Sapphire & Diamond 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 1.13 carats Vivid Royal Octagon cut 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: Natural Blue Sapphire (Normal Heat Treatment)
Weight: 1.13 carats
Per Carat Price: US$750
Shape: Octagon (Emerald) Cut
Dimensions (mm): Center Sapphire was 7.11 x 5.10 x 2.99 mm, Two side diamonds were 3.75 x 2.5 mm
Color/Intensity: Blue/ Vivid
Clarity: Transparent (100% Eye-Clean)
Cut:  Octagon Step Cut (or Emerald Cut)
Ring Design Solitaire Sapphire with Two Side Diamond Ring
Ring Size Range:  56 mm (inner circumference) or US Size 7.5
Gold Weight: 18K White Gold – around 4.3 grams


A Rare Octagon (or Emerald) Cut Blue Sapphire Diamond Engagement Ring

This design is inspired by our client and was custom-made by our CAD designer.

This particular engagement ring was custom made with a certified 1.13-carat Royal Blue Sapphire center, supported with two emerald cut 0.32-carat diamonds, and 18K White Gold.

The blue sapphire was 100% eye clean and has been certified 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.


There are no reviews yet.

Be the first to review “1 Carat Octagon (Emerald) Cut Blue Sapphire Diamond Engagement Ring”

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Privacy Preference Center