Birthstone jewelry gifts on Amazon

No size needed, and a single coloured stone by the face is the classic birthstone look.

Look for

• “Lab-created” or natural, not “simulated”
• Chain included, 16 to 24 inches
• 925 sterling silver or solid gold

Raymard created ruby bar pendant, sterling silver, 24 in chainJuly; the listing offers all twelve monthsabout $75on Amazon → Turandoss created emerald pendant, sterling silverMayabout $30on Amazon → PEORA lab opal teardrop pendant, sterling silver, 18 in chainOctoberabout $50on Amazon →

Small studs make even an expensive-looking stone like lab sapphire or ruby an everyday piece.

Look for

• 4 to 6 mm round or oval
• Screw or push backs
• Stone named exactly

Rosec Jewels lab sapphire studs, 2 ct total, sterling silverScrew backs, with moissanite accents, per the listingabout $50on Amazon → Amazon Essentials created sapphire flower studs, sterling silverabout $25on Amazon → B. BRILLIANT created sapphire studs, 4 mm, sterling silverabout $25on Amazon →

The traditional form. Lab ruby and sapphire are hard enough (Mohs 9) for daily wear.

Look for

• Solitaire or three-stone
• Adjustable if you do not know her size

ININY lab sapphire ring, 4 ct, sterling silverCubic zirconia accent stones, per the listingabout $130on Amazon → SILVERCLOSEOUT lab opal inlay ring, sterling silverOctoberabout $45on Amazon → Silvershake created sapphire ring, 5 mm round, sterling silverabout $25on Amazon →

The most personal gift in jewelry. Many mother’s rings use crystal or cubic zirconia in birthstone colours, so each card below says what the listing states about its stones.

Look for

• One stone per child, chosen by month
• Engraving option
• Check whether the stones are lab-created, natural, crystal or cubic zirconia

Dailygems personalised mother’s ring, 3 stones, sterling silverEngraving included; the listing does not say what the stones areabout $35on Amazon → Silverado mother’s ring, 3 stones, sterling silverThe birthstones are crystal, per the listingabout $40on Amazon →

A family necklace carries every child’s month in one piece. Coloured cubic zirconia and crystal look the part but are not the birthstones themselves, so read the stone line before you order.

Look for

• One stone per child, with names engraved on the pendant or bar
• Read the stone line: many say crystal or cubic zirconia; a few say lab-created ruby, sapphire or emerald
• 925 sterling silver or solid gold, chain length stated

A tennis line in lab ruby, lab sapphire or lab emerald is the real mineral, not a coloured imitation, and costs far less than mined stones.

Look for

• A line of her own month’s stone, or one stone per child
• “Created” or “lab-created” for ruby, sapphire and emerald
• Box clasp with a safety latch, and the length stated

FANCIME created ruby tennis bracelet, 4 mm, 7.2 in, sterling silverJulyabout $130on Amazon → B. BRILLIANT created sapphire tennis bracelet, 4 mm rounds, sterling silverSeptember; box clasp with a safety latch, per the listingabout $100on Amazon → EcoGems lab emerald and moissanite tennis bracelet, sterling silverMay; lab emerald with moissanite, per the listingabout $190on Amazon →

A loose stone in a gem jar is a gift in itself, or goes to a jeweller for setting.

Look for

• Lab sapphire, ruby, emerald or alexandrite
• Size in millimetres
• Calibrated sizes fit standard settings

Tianzuan lab sapphire, oval, 10 x 7 mmRoyal blue, with inclusions, per the listingabout $30on Amazon → Gryrigns lab sapphire, oval, 16 x 12 mm, 11.5 ctabout $35on Amazon → Instagem lab ruby, round, 8.5 mm, about 3 to 3.5 ctabout $25on Amazon →