Cut... Oval cabochon Color... Play of color, translucent Size... Opal 0.68ct Diamond 0.21ct Weight... 4.0g (including stone and chain) Chain... K18WG Venetian chain, @0.7 45cm, with slide adjuster We have received a rare Australian opal called "flashy," so we have made it into a necklace with a classic diamond halo design. Please check the color of the opal in the images. The color changes dramatically depending on the viewing angle! Also, this opal has a very strong red color, which is rare these days. It's a shame we can't show it in a video, as the play of color effect is so strong. ☆Includes a mini appraisal certificate and a jewelry case ☆10% off for followers☆ Followers, please let us know in the comments! ☆Thank you for your always warm comments. We are closed on weekends and holidays, so we apologize if our replies are delayed.