We've seen an increase in colored stone engagement rings in the past few years (we're now in 2020), especially young couples. Here are few things you have too look at:
Color. This is the most important factor in determining the value and beauty of green sapphire. A deep and intense green color is the most sought after.
Hue. Green sapphires could have hints of yellow or blue, which affects the overall appearance of the stone. From our experience, they could enrich the color, and some customers really love the yellowish or bluish green sapphires. We love them all!
Clarity. Like any other gemstone, clarity is one factor you should consider. Most green sapphires contain long, needle-like lines, called rutile needles. This is common. It is extremely rare to find a green sapphire without these inclusions. A clean, no obvious inclusion green sapphire, is valuable.
Cut. The most common cut for green sapphires are oval, round, and cushion. It is also pretty common to see them in pear, emerald, and princess cut. Whatever the cut is, a green sapphire should have a symmetrical cut that reflects light at the correct angles to display the luster.
Weight. Green sapphire price, like any other gemstones, is measured by carat weight. The price will significantly increased as the carat weight increases.