Nesta Alexandrite Engagement Ring in 14K White Gold

Some rings look inherited even when they are brand new. The Nesta is a vintage-styled alexandrite ring in white gold: a 6 x 8 mm oval lab-grown alexandrite wrapped in a halo of D/VVS1 moissanites, with ornate, marquise-inspired detailing running down the shoulders. In daylight the center stone holds a cool bluish green; by candlelight it turns purplish red — an heirloom that changes its mind after dark.

Vintage bones, modern stone

The Nesta’s design language is drawn from antique jewelry: an ornate halo, sculpted side detailing, and marquise-inspired accents along a polished band. It reads like a ring with a past — the kind of silhouette collectors hunt for among vintage and antique-style engagement rings — but it is built new, in solid white gold or platinum, around a gemstone the Victorians could only have dreamed of owning at this size. That contrast is the whole point: old-world romance, impossible stone.

The halo that keeps the light coming

Around the oval center runs a full halo of premium moissanites, D color and VVS1 clarity, chosen for maximum brilliance. A halo does two jobs here: it magnifies the ring’s presence on the hand, and it surrounds the color-change stone with steady white sparkle, so the alexandrite’s shift reads even more dramatically against it. It is a classic move from the playbook of our halo engagement rings, put to unusually good use.

A real alexandrite that changes color

The 6 x 8 mm oval center is lab-grown alexandrite — genuine alexandrite, the same chrysoberyl mineral as the mined gem, grown in a laboratory rather than pulled from the earth. Its color change is real and light-driven: bluish green under daylight and cool light, purplish red under warm evening light. Our guide to lab-grown vs natural alexandrite explains what shoppers actually need to know, and if you are weighing this stone against its closest rival, read alexandrite vs sapphire before you decide.

White gold or platinum, solid throughout

Every Nesta is made to order in the metal you choose from the drop-down menu — solid 10K white gold for the most durable and affordable option, 14K white gold for the classic balance of purity and strength, 18K white gold for the highest gold content, or platinum, naturally white, denser than gold, and superb for sensitive skin. Every option is hypoallergenic and solid metal through and through, so the color is permanent. Our 10K vs 14K vs 18K karat guide breaks down the differences, and you can see how cool-toned metals flatter color-change stones across our white gold jewelry.

A name from the romantasy shelf

If the name Nesta rings a bell, it should — it belongs to one of fantasy romance’s most fiercely loved heroines, and this design wears the association well: beautiful, a little sharp-edged, transformed by fire into something rarer. It sits naturally among our fantasy-inspired engagement rings and the wider ACOTAR-inspired jewelry collection, and alongside its siblings in our alexandrite engagement rings. For help choosing between them, our alexandrite engagement ring guide compares cuts, settings, and metals side by side.

Nesta specifications

Sizing & care

Select your size from the drop-down menu — half and quarter sizes are offered — and measure at home first with our ring size guide, since sizing tools can vary by up to half a size between jewelers. Alexandrite rates 8.5 on the Mohs hardness scale and moissanite 9.25, so the Nesta is genuinely built for daily wear. Clean it with warm water, mild soap, and a soft brush; dry gently, store it away from harder stones, and take it off for heavy lifting or work with harsh chemicals. Your ring arrives in a complimentary luxury ring box with free USA shipping.