| Identification | Natural sapphire |
| Origin | Mogok, Myanmar. |
| Comment | No indication of thermal treatment. |
| Item | Yellow gold necklace with natural sapphire and natural diamonds |
| Pieces | Sapphire : 23 pcs, diamond : 535 pcs(round), 69 pcs(drop) |
| Measurement | 8.1x6.7 mm, 5.5x5.3 mm (Approx) |
| Weight | Total : 61.89 gm, sapphire : 23.84 cts, diamond : 9.42 cts(round), 5.35 cts(drop) |
| Cut & shape | Mixed cut, oval to cushion shape |
| Colour | Intense blue to vivid blue |
| Transparency | Transparent |
Fine rutiles, feathers, boehmite, twinned planes, tiny crystals.