Trilogy Ring with White & Argyle Cognac Diamonds ~ 18ct Rose Gold & Platinum


This delicate three stone ring is set with a beautiful oval 0.31ct white diamond in the centre and a 0.05ct Argyle cognac diamond on each side, forming a finely balanced trilogy.

The slim, highly polished band is of an elegant half round, parallel profile with subtly tapering shoulders. 

The claw settings are crafted in platinum. Our jewellers love platinum due the strength, durability and bright white tone of this precious metal.

Designed and made with responsibly sourced materials in the Sargisons workshop in Hobart, Tasmania.

This ring is available to purchase in store. To enquire please contact us by emailing or calling (03) 6234 2426.


  • Central Diamond Details: Weight 0.31ct. Colour H. Clarity SI1
  • Argyle Diamond Details: Total weight 0.10ct. Colour C3/C4
  • Metal: 18ct rose gold & platinum
  • Ring Band Dimensions: Width 2mm

  • Size M. Free resizing with purchase available


• 7 day money back guarantee or exchange on stock items, if returned in original condition, with original packaging and paperwork.

• Free resizing for a period of two years from the date of purchase.

• 5 year guarantee against any manufacturing defects.

• Free valuation at time of purchase.


Custom made engagement rings are our specialty. Our custom design process offers you the opportunity to handpick your diamond with the guidance of our friendly jewellers. They will work with you to design an exquisite ring to perfectly suit your taste, lifestyle and budget. 

A Sargisons ring will be of the highest quality and finest workmanship, made locally in our Hobart workshop.

We hope to have the privilege of creating your dream ring.

To discuss commissioning your bespoke engagement ring please contact us or simply visit us in store.