THE RUBY JOURNAL · GEMSTONES
Neelam, Zamurd, Yaqoot: Buying Coloured Stones with a Certificate
Neelam, zamurd, yaqoot: blue sapphire, emerald and ruby carry familiar names at a Lahore counter, though the name alone confirms very little. A gemmological report from an independent laboratory adds specific evidence—identity, disclosed treatment, measurement—alongside what the eye can already see.Prepared and reviewed by the Ruby Jewellers house team in Lahore · Updated 3 September 2026The names, and what they mean
Neelam is blue sapphire. Zamurd is emerald. Yaqoot is ruby. These are the Urdu names most often heard across a Lahore counter for three stones known internationally by their English, gemological names—the same stones, described in the language the trade has always used here.
What an independent report actually confirms
A gemmological report from an independent laboratory—often called a certificate, though report is the more precise term—records what can be measured and observed: the stone's identity, its dimensions and weight, and any treatments detected during examination. It is a record of fact, not an opinion of the stone.
What it does not tell you
A report does not grade beauty, and it does not set a price. Two stones can carry near-identical reports and still look entirely different in colour, saturation and life. Read the report for what it establishes, then judge the stone itself, in person, before any decision is made.
Treatments a buyer should expect to see disclosed
Heating is standard and widely accepted for most ruby and sapphire, improving colour and clarity. Oil or resin filling is standard for most emerald, settling into natural surface fractures. Neither should be hidden—ask that any treatment is stated plainly on the report rather than left unmentioned.
Look in daylight, then under the counter lamp
Daylight shows a stone's true, consistent colour. A counter lamp is warmer and more concentrated, and can flatter a stone shown only under it. At a private appointment, a stone can be seen in both in turn—the difference is worth seeing before it is worth deciding on.
Why the setting matters more for a softer stone
Emerald typically carries more natural inclusions than ruby or sapphire, which makes it more prone to damage from a single knock. A setting that protects the stone—rather than exposing its edges—matters as much as its grade, and is worth discussing at the same time as the stone itself.
Questions, answered
What do neelam, zamurd and yaqoot mean in English?+
Neelam is blue sapphire, zamurd is emerald and yaqoot is ruby—the Urdu names for three coloured stones long chosen and worn in Lahore.
What does a gemmological report from an independent laboratory establish?+
It can confirm a stone's identity, disclose treatments such as heating or oil filling, and record its measurements. It does not grade beauty or determine price.
Why does the setting matter more for emerald than for ruby or sapphire?+
Emerald typically carries more natural inclusions, making it more prone to damage from a knock. A protective setting helps the stone withstand daily wear.
