expert answers to common gemstone questions covering quality, authenticity, certification, pricing, treatments, value, and gemstone care tips.
Gemstone photos can end up being pretty misleading, mostly because the lighting is manipulated, digital colour grading is tweaked, and screen calibration differs from person to person. A two-dimensional photograph often fails to show a gem’s actual saturation, true tone, and internal clarity in a faithful way. Many sellers use strong directional studio lighting to…
Natural emeralds do not fade just because they have been in sunlight for a while, or because time passes; their own green mineral hue stays fully stable. Yet, their look can become dull, lighter, or even a bit chalky if the oils or resins used to fill their natural breaks dry up or wash away,…
Yes, a chipped emerald can often be put back into shape by a skilled lapidary, through careful repolishing or maybe a light recutting of the damaged zone. But since emeralds are naturally brittle and often full of inclusions, the work still has a real chance of triggering more fractures. To repair an emerald, you really…
Yes, aquamarine is routinely heat-treated, at roughly 400°C to 450°C, to permanently erase those naturally occurring greenish or brownish tints that show up. In the jewellery business, this is basically standard; it boosts the specimen so you get that pure, vibrant blue which everyone really wants. The way the heat treatment works is by changing…
Yes, antique gemstones can turn out to be worth noticeably more than modern stones, because the background story matters, the old mines were limited long ago, and the cutting work was done by hand in a way that feels different. Still, what it’s worth in the end really hinges on the stone’s condition, how uncommon…
Yes, getting a professional gemstone appraisal boosts buyer confidence in a real way because it checks the stone’s legitimacy, the actual quality traits, and the up-to-date market replacement value. It feels like an impartial, specialist look that guards both sides, the buyer and the seller, during high-value trades. When the appraisal is performed by a…
Yes, if an amethyst is exposed for a long time to direct sunlight or strong ultraviolet (UV) light, the vivid purple tone can fade over time. This fading is permanent, and you cannot reverse it without specialised lab irradiation treatments. That purple shade comes from particular colour centres that are related to iron impurities and…
Yes, the vast majority of commercial citrine is made by heating pale or lower-grade amethyst, usually somewhere around 470°C up to 750°C. That controlled thermal step changes the colour permanently, so the stone goes from purple to yellow, or sometimes to deep orange. This change happens because the strong heat shifts the oxidation state of…
Yes, alexandrite can be made in a lab, using advanced techniques like Czochralski pull, floating zone, or flux melt processes. In general, these engineered stones have the same chemical makeup, physical structure, and optical behaviour as naturally mined alexandrite. Lab-made alexandrite also shows that famous colour change, meaning it swings from green in daylight to…
Yes, previously cut or pre-formed rough stones can be recut by a professional lapidary to boost the brilliance, mend damage, or update the general outline. This process always brings a permanent loss of carat weight. Recutting means grinding and repolishing the gemstone facets to fix awkward proportions or take away small chips and fine scratches….