How to Choose August Birthstone Jewelry: Peridot, Spinel and Sardonyx

By LUMERUNE

Peridot, spinel and sardonyx are August’s birthstones. Choose peridot for a yellow-green accent, spinel for a wider color choice and greater scratch resistance, or sardonyx for contrasting bands and carved designs. Then choose the jewelry format around the person who will wear it. The stones, setting and fit all matter.

Our August birthstone jewelry collection includes mixed-gemstone pieces with peridot and selected designs that also list spinel. The guide below compares all three August stones; it does not imply that every stone discussed is currently available from LUMERUNE.

Which August birthstone suits your style?

GIA’s August birthstone guide identifies three distinct materials:

• Peridot: the gem variety of olivine, with yellow-green to greenish-yellow color. Consider it if a fresh green detail is what you want to wear.
• Spinel: a separate gemstone that occurs in colors including red, pink, purple and blue. It gives an August gift options beyond green.
• Sardonyx: banded chalcedony combining sard and onyx. Its contrasting layers suit cameos, carvings and a more graphic look.

Start with a favorite outfit or a piece the recipient wears often. Would a small green accent fit naturally, or do they enjoy several colors together? The shade you like is a personal preference, and a traditional birthstone gift can still feel modern.

For history and the month’s background, see our August birthstone guide. Our Peridot Meaning article explores renewal as a personal association. Symbolism can make a gift thoughtful without promising health, luck or other effects.

Can a mixed-gemstone piece be an August birthday gift?

Yes. An identified August stone can supply the birthday connection within a design that contains other materials. Describe the combination clearly rather than calling the whole piece a single-stone design.

The Bonbon Gemstone Lariat Necklace combines peridot with blue topaz and citrine. Its green, blue and yellow arrangement is a choice for someone who likes color near the neckline. The Garden Citrine Drops Earrings combine peridot, citrine and baroque petal pearls. A gift note could say, “I chose these mixed-gemstone earrings for the green peridot, your August birthstone.”

The Bonbon Candy Gemstone Ring lists blue spinel and peridot alongside labradorite, citrine, amethyst and white zircon. It includes two August stones in a colorful arrangement. Its listing does not provide stone-specific natural-versus-laboratory-grown or treatment information for the blue spinel; ask about the exact piece if that matters to your choice.

Sardonyx offers another August option, but the collection reviewed for this guide did not include an identified sardonyx piece. Check current product descriptions for what is available.

Which stone works best for frequent wear?

GIA rates peridot at 6.5–7 on the Mohs scale, with fair-to-good toughness. Spinel rates 8 and has good toughness. GIA’s August guide places sardonyx at 6.5–7. Spinel therefore resists scratching better than either peridot or sardonyx.

That comparison covers the gemstones, not an entire finished piece. Hardness measures scratch resistance; toughness concerns resistance to breaking or chipping. Heat and chemicals introduce further care considerations. A spinel ring that also contains peridot still needs care suited to its more delicate components. The setting, chain, clasp and metal finish matter too.

Peridot rings need particular care

GIA’s August guide does not recommend peridot for daily use in a ring because it cannot take hard wear. If you love a peridot ring, plan to remove it for exercise, cleaning and hands-on work. Ask how exposed the stones are and how the setting protects their edges; no setting makes the stone scratch-proof.

For someone whose hands are busy throughout the day, a necklace or earrings may be easier to accommodate. These usually encounter fewer knocks than a ring, but they still need to be removed for unsuitable activities and cared for according to the finished piece’s instructions. Our birthstone durability guide explains why hardness is only one part of wearability.

Choose a format the recipient already enjoys

• Necklace: compare the chain and drop with a familiar neckline. The lariat’s shape contributes as much to its appearance as the stone colors.
• Bracelet: check wrist fit and whether dangling stones suit the wearer’s routine. The Dewdrop Multi-Gemstone Drop Bracelet includes peridot, blue topaz and amethyst.
• Earrings: use a pair they already wear to judge the preferred drop, fastening and weight.
• Ring: confirm the intended finger’s size and whether the wearer is comfortable taking it off when needed.

If you do not know their ring or bracelet size, ask for a measurement or consider a necklace with a length you can compare. Our size guide helps you turn a photograph into a realistic idea of fit.

A few checks before choosing

Look for clear photographs, named gemstones, measurements and metal details. For peridot, color, visible inclusions and cut contribute to appearance, as GIA’s quality guide explains. A photograph helps you judge the look but cannot reliably establish gemstone identity or treatment history.

Care should follow the most delicate material in the design. For the LUMERUNE pieces linked here, follow their product instructions: avoid water, perfume, lotions and household chemicals, wipe with a soft dry cloth, and store separately. Peridot should not go into ultrasonic or steam cleaners. Use our jewelry care guide for mixed materials, including pearls and plated settings.

Once you have chosen the stone and style, read Buying August Birthstone Jewelry Online to check specifications, value, gemstone evidence and the details that matter before ordering a gift.