Vintage Octagon Halo Green Amethyst Ring in Sterling Silver

This green amethyst ring is a vintage-inspired halo engagement ring in 925 sterling silver with a rhodium finish, built around a 0.85 carat natural green amethyst framed by an octagon halo of baguette and round simulated diamond accents. Also known as prasiolite, green amethyst is one of the rarer varieties of quartz — a soft mint-to-celadon green that sits somewhere between peridot and seafoam, catching light in a way no other green gemstone does.

The Green Amethyst

• 100% natural green amethyst (mineralogically prasiolite) — a genuine quartz variety with a pale, luminous green color
• Round brilliant cut, 6.0 mm, approximately 0.85 carat — the most light-returning cut possible, showing off the stone's clarity and soft color
• Mohs 7 hardness — durable enough for daily engagement-ring wear
• Soft mint-celadon green — a delicate cool green that reads more modern and wearable than deep emerald or peridot
• A rare alternative to traditional green gemstones like emerald, peridot, or tsavorite

The Setting

• Octagon halo framing the round center — an Art Deco geometric shape that's rare in modern bridal jewelry, built from alternating baguette and round CZ accents
• Four baguette-cut simulated diamonds at the cardinal points of the octagon create strong architectural lines
• Round simulated diamonds fill the halo's corners and trace the pavé shoulders
• Six-prong basket securing the round center stone — more prongs than a standard four-prong, for extra security
• Halo size: 10.5 mm — substantial finger presence

The Band

• 925 sterling silver with rhodium finish — hallmarked fine-jewelry metal plated with rhodium for a bright white-gold appearance and added tarnish resistance
• 2.3 mm average band width — substantial enough to hold the halo, slim enough to feel delicate
• 100% nickel-free and hypoallergenic
• Comfort-fit interior rounded for smooth all-day wear

Why Green Amethyst

• A natural quartz crystal — genuinely mined stone, not lab-grown, not simulated, not dyed
• One of the more unusual colored-stone choices in bridal jewelry — visually striking without being loud
• Sometimes called prasiolite in mineralogical references and technical grading; the jewelry trade name "green amethyst" has been used for decades
• Sits beautifully against both silver-tone and gold-tone metals, and pairs naturally with white accent stones

Who It's For

• Brides drawn to colored-stone engagement rings over traditional white-diamond solitaires
• Anyone looking for a green engagement ring that's softer than emerald or tsavorite
• Partners shopping for a vintage green amethyst engagement ring with real Art Deco architectural structure
• Women drawn to Art Deco, Edwardian, or Old Hollywood aesthetics over modern solitaires
• Collectors of unusual natural gemstones with an appreciation for prasiolite's rarity

The Details

• Metal: 925 sterling silver with rhodium finish (hallmarked, nickel-free, hypoallergenic)
• Band width: 2.3 mm average
• Halo size: 10.5 mm (octagon shape)
• Center stone: Natural green amethyst (prasiolite), round brilliant cut, 6.0 mm, ~0.85 ct, Mohs 7
• Accent stones: Cubic zirconia (simulated diamond), baguette and round cuts
• Setting style: Vintage-inspired octagon halo with pavé shoulders
• Fit: Comfort-fit interior
• Free ring box included
• Free USA shipping