7x5mm Oval Opal Doublet Engagement Rings enhancing the stone's "fire" and

enhancing the stone's "fire" and durability while remaining more affordable than a solid opal

featuring a 7x5mm rectangular chrome diopside gemstone

glamorous diamond halo ring with a unique Ethiopian opal centre stone

A boldly lavish white gold lab diamond ring with trio diamond detailing

with a dark moss agate centre stone shrouded in shadow

7x5mm Oval Opal Doublet Engagement Rings enhancing the stone's "fire" andThis 7x5mm oval opal doublet features a vibrant play of colour with flashes of green, red and blue. Consisting of a natural opal slice chemically bonded to a deep blue backing, a doublet enhances the stone's "fire" and durability while making it a significantly more affordable alternative to a solid Australian opal. Its calibrated size is perfect for a custom designed ring or pendant. A practical, high impact choice for custom jewellery or a