Ella Lab-Grown Alexandrite Engagement Ring in 14K Solid Rose Gold

One ring, two colors. The Ella’s round lab-grown alexandrite reads bluish green under daylight and shifts to purplish red under warm evening light — a genuine color-change gemstone at the heart of this lab alexandrite engagement ring in solid rose gold. A finely detailed band and your choice of moissanite or natural diamond accents frame a stone that never shows the same face twice.

A true color change, shown in the round

Alexandrite’s party trick is real: the stone absorbs light differently depending on the source, so it flips from cool bluish green in sunlight to warm purplish red under candlelight and indoor bulbs. The Ella sets that phenomenon in a classic round cut — 6.5 mm across, roughly 1.2 carats — whose symmetrical facets spread the shift evenly across the whole face of the stone. Where fancy shapes concentrate color in their corners, a round shows the change everywhere at once, which is exactly what you want from a gem you chose for its transformation. It is a quietly traditional silhouette among round engagement rings, carrying a decidedly untraditional stone, and one of the signature designs in our alexandrite engagement rings collection.

The detailed band

The Ella’s band is where the romance lives. Averaging 2.4 mm wide, it carries fine, sculpted detailing along the shoulders, set with approximately 0.3 total carats of accent stones in your choice of D-color moissanite or natural G/H diamonds. The warm blush of rose gold flatters both of alexandrite’s personalities — it deepens the green in daylight and echoes the red by night — which is why this metal has become a favorite pairing across our rose gold rings.

Solid rose gold, in the karat you choose

Every Ella is made to order in solid rose gold all the way through — select your karat from the drop-down menu:

• 10K rose gold — the hardest and most affordable of the three, well suited to everyday wear.
• 14K rose gold — the most popular all-rounder, balancing durability with a warm rose glow.
• 18K rose gold — the richest color and highest gold content, for the most luxurious feel.

Undecided? Our 10K vs 14K vs 18K karat guide compares durability, color, and price in plain language.

A real alexandrite, grown above ground

The Ella’s center stone is lab-grown alexandrite: the same chrysoberyl mineral as mined alexandrite, with the same chemistry, the same 8.5 rating on the Mohs hardness scale, and the same light-driven color change — created in a controlled setting instead of pulled from the earth. Natural alexandrite of this size and clarity is among the rarest gems on the planet; growing it in a lab is what makes a clean, vividly shifting 1.2 carat stone attainable. Our guide to lab-grown vs natural alexandrite covers what shoppers actually need to know, and the alexandrite guide goes deeper into the stone itself.

A June birthstone that means transformation

Alexandrite is a modern June birthstone and a long-standing symbol of transformation, balance, and good fortune — a stone said to carry both halves of a story, day and night, in one crystal. That makes the Ella a natural engagement ring for a love that keeps changing and deepening, and an equally meaningful anniversary or milestone gift; see our June birthstone guide for the full story. Many couples later pair it with a band from our alexandrite wedding bands collection.

Ella specifications

Sizing & care

Choose your size from the drop-down menu; half and quarter sizes are offered, and our ring size guide will help you measure at home. Note that sizing tools vary slightly between jewelers — readings can differ by up to half a size, so measuring with our guide is worth the two minutes. At 8.5 on the Mohs scale, alexandrite sits just behind sapphire in hardness and handles daily wear confidently. Clean the ring with warm water, mild soap, and a soft brush, then pat dry; store it separately from harder stones like diamonds to keep every facet crisp. Your ring arrives in a complimentary luxury ring box with free USA shipping.