Hexagon Cut Alexandrite Engagement Ring in 14K White Gold

Wear it to the office and it is a cool teal geometric stone in an icy setting. Wear it to dinner and the same stone burns purplish red. This hexagon alexandrite ring pairs a lab-grown, color-changing alexandrite with solid white gold or platinum — a naturally white frame that lets the stone do all the talking. See where it sits among our alexandrite engagement rings, then read on for the details.

Cool metal, cooler stone

White metal is the purist’s choice for alexandrite. Against a naturally white band, the stone’s daytime phase reads its truest bluish green, and nothing warms or muddies the transition as the light changes — from teal under daylight to violet, magenta, and finally purplish red under evening bulbs and candlelight. Our guide to how alexandrite changes color covers why the shift happens and how to show it off.

The stone itself is a lab-grown alexandrite: real alexandrite, chemically identical to the mined gem, rated 8.5 on the Mohs scale, and grown under conditions that produce the strong, unmistakable color change the species is prized for.

The hexagon: geometry with a purpose

Six straight sides and broad, open facets make the hexagon a display case for body color — the ideal stage for a gem that changes it. At 7.0 x 7.0 mm and approximately 1.2 carats, the stone holds real presence on a slim 1.6 mm band without overwhelming the hand. If you are drawn to structured, modern lines, our hexagon engagement rings and wider geometric engagement rings collections make good comparison shopping.

Four solid metals, one decision

Every version of this ring is solid precious metal all the way through:

• 10K white gold — the hardest and most affordable gold option, with excellent scratch resistance.
• 14K white gold — the most popular all-rounder, balancing durability, weight, and value.
• 18K white gold — the highest gold content, for a softer, more luxurious feel.
• Platinum — naturally white, the densest and most substantial choice, and hypoallergenic for sensitive skin.

Undecided between karats? Our 10K vs 14K vs 18K karat guide lays out the trade-offs in durability, color, and price.

Accents: fire or tradition

Choose moissanite accents (D color, VVS1 clarity) for maximum brilliance and fire, or natural diamond accents (G/H color, I1 eye-clean clarity, conflict-free) for the traditional pedigree. Either way, the small stones frame the hexagon with a fine line of white sparkle that reads elegant rather than busy.

Rarer than the classics

Plenty of rings hold a blue stone or a red one; very few hold both in a single gem. Alexandrite — June’s birthstone and the gem of the 55th anniversary — is scarcer in nature than sapphire or ruby, and its two-in-one character is why collectors treat it as a category of its own. If you are torn between this and a classic blue stone, our comparison of alexandrite vs sapphire is an honest look at which feels more unique on the hand.

Specifications

Sizing & care

Pick your size from the drop-down menu, and confirm it first with our ring size guide — measurements can differ by up to half a size between jewelers’ tools, and a made-to-order ring is worth measuring twice.

Alexandrite’s 8.5 Mohs hardness makes this a genuine everyday ring. Wash it occasionally with warm water and mild soap, dry it with a soft cloth, and store it away from diamonds and other harder stones. Your ring arrives in a free luxury ring box, with free shipping across the USA.