In this article
GemStore team — written by the people who list and pack every stone.
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Sunstone owes its sparkle to tiny flat crystals inside the stone that catch the light like scattered gold flakes. How many of those flakes there are, how evenly they spread and how well the cut shows them off are what you are really paying for. This guide explains those drivers.
What makes sunstone sparkle
Sunstone is a feldspar containing thin platelets, usually of hematite, and in some sources copper. When light hits them they flash, an effect called aventurescence. The body colour around them ranges from pale peach and orange to red-brown.
The four things that move the price
- Strength of the glitter: dense, bright flashes across the whole stone are worth more than a few scattered sparks or a dull, cloudy shimmer.
- Evenness: glitter spread evenly across the face looks better set than patches of sparkle and blank areas.
- Body colour and clarity: a warm, lively orange to red with some translucency is preferred over muddy brown or very opaque material.
- Cut and orientation: the platelets lie in planes, so the stone must be cut parallel to them to flash face-up. A poorly oriented stone only sparkles at an angle.
Size matters less than these, although large stones with strong, even glitter are harder to find.
Sunstone or goldstone?
Goldstone is manufactured glass filled with copper particles, and it is often sold as sunstone. Its flecks are tiny, perfectly uniform and evenly spaced, like glitter in nail polish, and the colour is often a very consistent reddish-brown. Natural sunstone shows irregular platelets of different sizes. A flawless, perfectly even and cheap stone is the warning sign. Ask the seller to write that it is natural sunstone.
Wear and care
At 6 to 6.5 on the Mohs scale sunstone suits pendants, earrings and a ring worn with some care. Like other feldspars it has cleavage, so avoid hard knocks, and clean it with mild soap and water rather than an ultrasonic cleaner.
Before you pay
Confirm the stone is natural, that any treatment is written down and that the weight given is the cut stone's. We inspect every stone and photograph each one alone, so you can see its glitter on the listing. Browse our sunstone, or compare yellow agate and dur-e-najaf. Our gem names page lists Urdu and English names, and Cash on Delivery reaches Lahore, Karachi and the rest of Pakistan.
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