| Brand | Unbranded |
| Style | Statement |
| Type | Necklace |
| Metal | Platinum |
| Metal Purity | 950 |
| Main Stone | Opal |
| Main Stone Color | Black |
| Main Stone Shape | Oval Cabochon |
| Main Stone Creation | Natural |
| Main Stone Treatment | Not Enhanced |
| Total Carat Weight | 7.89ctw |
| Diamond Clarity Grade | VS2 |
| Vintage | Yes |
| Secondary Stone | Diamond |
| Base Metal | Platinum |
| Necklace Length | 18" |
| Closure | Lobster |
| Chain Type | Spiga/Wheat |
| Main Stone Dimensions | 15mm x 11.4mm |
| Circa | 1930's |
| Diamonds Total Carat Weight | 3.53ctw |
| Gemstones Total Carat Weight | 4.36ctw |
| Gemstone Color | Black |
| Total Gram Weight | 19.66g |
| Gemstone Quality | AAA |
| Necklace Width | 1.2mm |
| Country Of Origin | United States |
Shape: Oval Cabochon (15 x 11.4mm). Gem Type: Black Opal. Clarity/Quality: AAA. Gem Type: Diamond. Chain Length: 18 IN. Chain Width: 1.2 MM. Total Weight: 19.66g. Carat Weight: 4.36ct.