A ruby valuation establishes whether the stone is natural or synthetic, possible treatments and quality, including the highly prized colour often described as “pigeon blood red”. These factors support the market valuation. An HRD Antwerp accredited gemmologist performs the examination.
Fine-quality ruby is among the world’s most expensive gemstones. The distinction between an untreated natural ruby and a treated or synthetic stone can have a major effect on value.
What we examine
- Whether the ruby is natural or synthetic;
- Applied treatments such as heating or glass filling;
- Quality: colour intensity, clarity, cut and weight.