Princess Cut Alexandrite Engagement Ring in Sterling Silver

Big, bold, and impossible to pin down to one color. This 3 ct princess cut alexandrite engagement ring leads with a square-cut color-changing center that reads deep teal and blue-green in daylight, then swings to rich violet and purple-red under indoor and candlelight. The alexandrite is faceted and set in the open, so the shift is on full display — a substantial, sharp-cornered stone in 925 sterling silver with a rhodium finish, built to make a statement every time the light moves.

A bold princess-cut statement

The princess cut is all crisp geometry — a square outline with sharp corners and brilliant faceting that fires light from edge to edge. At a generous 3 ct and 8 x 8 mm, this center commands the hand with clean, modern presence, the kind of stone that reads as confident rather than fussy. It anchors a bold end of our alexandrite engagement rings, and it looks striking stacked with a matching band from our alexandrite couples rings.

The color-shift, magnified

A bigger stone means a bigger stage for alexandrite’s signature trick. Trace chromium in the crystal absorbs yellow-orange light, so under blue-rich daylight or fluorescent light the princess cut reads teal and blue-green, while under red-rich incandescent bulbs or candlelight the same stone reads violet and purple-red. Because it is faceted and open-set rather than sealed in resin, the shift is genuinely visible — and across 3 ct of surface, it is hard to miss. See how faithfully a created stone reproduces it in our journal on whether synthetic alexandrite changes color.

The lab-created alexandrite center

The 3 ct princess cut is lab-created alexandrite — the same chromium-traced chrysoberyl as mined alexandrite, matching it in composition, 8.5 Mohs hardness and color-changing optics, grown in a lab rather than mined. A 3 ct natural alexandrite would be extraordinarily rare and cost a small fortune, so a lab-created center is the only way to wear this much color-shift at an approachable price. Our guide to lab-grown vs natural alexandrite lays out what that means for you.

Simulated diamond accents

Simulated diamond (CZ) accents flank the center, adding a crisp band of white sparkle that frames the princess cut and makes its shifting color read even more vividly against the bright fire. It is a clean, brilliant complement that keeps the ring accessible while looking every inch a statement piece. Prefer moissanite or natural-diamond accents? Message us and we can build it to order.

Solid sterling silver with a rhodium finish

The ring is crafted in solid 925 sterling silver with a rhodium finish — the same white metal used on fine white gold. The finish delivers a bright, mirror-white luster and a protective layer against tarnish and everyday scratches, so a big-stone silver ring keeps its polish. It is also nickel-free and hypoallergenic, easy on sensitive skin, and its cool white tone lets the alexandrite’s colors read at full strength.

What alexandrite symbolizes

A stone that transforms with the light is a striking emblem for a love that keeps revealing new sides — alexandrite has long been tied to transformation, balance and the harmony of opposites. As one of the three traditional June birthstones, this ring also makes a bold June birthday gift. Choosing between alexandrite and another blue-violet gem? Our comparison of alexandrite vs sapphire explains why the color-change sets it apart.

Specifications

Sizing & care

Choose your size at checkout; if you’re between sizes or unsure, contact us and we’ll guide you. Resizing is available and starts from a modest fee. To keep the color-shift vivid and the rhodium bright, remove the ring before showering, swimming or applying lotions, store it in its box, and buff gently with a soft dry cloth. At 8.5 Mohs the alexandrite is hard enough for confident daily wear — just protect the sharp corners of the princess cut from hard knocks.