Princess Cut Alexandrite Engagement Ring in 14K Solid Rose Gold

One stone, two personalities. This princess cut alexandrite ring carries an 8x8mm lab-grown alexandrite that reads bluish green in daylight and turns purplish red under warm evening light — a visible transformation, not a trick of marketing. Set in solid rose gold with your choice of moissanite or natural diamond accents, it’s a ring that never shows you the same face twice.

Why the Princess Cut Suits Alexandrite

The princess cut is a square brilliant: crisp, architectural corners on top, a pavilion of chevron facets underneath that fires light back in sharp, angular flashes. On an alexandrite, those facets do double duty. Every flash becomes a small window into the stone’s current color, so the shift from cool teal-green to warm violet-magenta plays out across dozens of tiny reflections instead of one flat plane. At a generous 8x8mm and approximately 3.0 carats, the display is impossible to miss.

If you love clean geometry, you can browse the wider range of princess cut engagement rings to see how the shape behaves across different stones — alexandrite remains the only one that answers the light back.

Lab-Grown Alexandrite Is Real Alexandrite

The center stone is grown in a lab from the same chrysoberyl crystal that forms natural alexandrite, with the same chemistry, the same 8.5 rating on the Mohs hardness scale, and the same genuine color change. The difference is practical: natural alexandrite of this size and clarity is one of the rarest gems on earth, while the lab-grown route makes a large, vividly shifting stone attainable. Our guide to lab-grown vs natural alexandrite walks through the comparison honestly, and if you’re curious about the physics, read how alexandrite shifts color from daylight to lamplight.

Solid Rose Gold, Three Karats

The band is solid rose gold all the way through — no layers, no coatings — on an average 2.0mm width that keeps the focus on the stone. Choose your karat from the drop-down:

• 10K rose gold — the hardest and most affordable, built for everyday knocks.
• 14K rose gold — the most popular balance of strength, color, and value.
• 18K rose gold — the richest, warmest blush hue for a more luxurious feel.

Undecided? Our 10K vs 14K vs 18K karat guide breaks down the differences, and you can explore the full solid gold rings collection for more heirloom-grade designs.

Accent Stones: Moissanite or Natural Diamond

Approximately 0.3 total carats of accent stones frame the center. Choose moissanite in colorless D grade — a real lab-grown gemstone with even more fire than diamond and a 9 to 9.25 Mohs hardness (here’s what moissanite actually is) — or natural conflict-free diamonds in G/H color, I1 eye-clean clarity, the hardest material in jewelry at Mohs 10.

A Stone That Mirrors a Marriage

Alexandrite has long stood for balance and transformation: one stone holding two natures, cool and warm, day and night. As the June birthstone’s most dramatic form, it makes a pointed alternative to a conventional sparkler — a fit for someone whose favorite answer is “both.” This design belongs to our collection of alexandrite engagement rings, and there are matching alexandrite wedding bands if you want the color change to run in a pair.

Specifications

Sizing & Care

Half and quarter sizes are offered in the drop-down, and additional sizes are available on request. Sizing can vary up to half a size between jewelers’ tools, so check our ring size guide before ordering. To care for the ring, wash it in warm water with mild soap, dry with a soft cloth, and store it separately from harder stones like diamonds. Remove it for heavy work at the gym or garden — at 8.5 Mohs, alexandrite handles daily wear well, but no gem is indestructible. Your ring arrives in a free luxury ring box with free USA shipping, and an optional appraisal can be added from the drop-down menu.