Custom Marquise Lab-Grown Alexandrite Engagement Ring with Marquise and Round Diamond Accents in 10K White Gold

This custom engagement ring showcases a striking marquise-shaped lab-grown alexandrite, set in cool 10K white gold and paired with a cluster of marquise and round diamond accents. Elongated and eye-catching, the marquise cut draws the eye along the length of the stone, and alexandrite's signature color shift adds a dimension no diamond or sapphire can match.

Inspired by The Laurel, this design shows how a single change to the center stone can transform the entire character of a ring. Where the original Laurel leans soft and natural with a blue topaz center, the alexandrite introduces something rarer and more dramatic—a stone that seems to change its mood with the light in the room.

The engagement ring features six marquise and round diamond accents, clustered on either side of the center stone in the Laurel's signature nature-inspired arrangement. The accents frame the alexandrite without ever overpowering it, letting the color-changing effect stay the clear focal point. Beneath, the 10K white gold setting keeps the palette cool and lets the stone's shifting color read as intended.

Designed as a bespoke piece, this ring highlights:

• 10x5mm marquise-shaped lab-grown alexandrite center stone with a dramatic, color-changing profile
• 10K white gold setting for a cool, clean palette
• Six marquise and round diamond accents that echo the Laurel's signature design
• Color-changing effect, shifting between blue-green and purplish-red in different lighting
• A custom reinterpretation that shows how center stone choice can redefine a design

This ring is a strong example of the flexibility and artistry behind custom engagement rings at Rustic & Main. By starting with an existing design and rebuilding it around a completely different stone, each piece becomes entirely its own.

If this ring inspires you, we'd be honored to create a custom version of The Laurel—or design something entirely new—crafted around your choice of stone, metal, and personal touches.

Interested in a similar ring?
Reach out to our team to begin a custom design inspired by this piece.