DMC 731 - Not made for Diamond Painting
DMC 731 is a RETIRED Embroidery Floss color that the DMC company no longer makes. This retired color pre-dated Diamond Painting as a craft and 731 is not one of the 447 colors currently used in Diamond Painting.
In cross stitch and embroidery, the common substitution for DMC 731 is DMC 732. This color substitution should work in diamond painting as well.
If you have diamonds that were packaged with the color 731 printed on the chart and drill packets, this means your diamond painting manufacturer is using an old cross stitch chart to create your diamond painting. They would have substituted another color and marked it 731. What color they chose is their decision and may or may not be the common substitution of 732. We would have no way of know what color you received marked with a retired number. We cannot match drills based off photos or samples - color-matching is not a service we can provide. We can provide YOU with pictures of our current inventory so YOU can determine if it will work for your project. Send us an email at firstname.lastname@example.org with a request for photo.