How Do I Know If a Super 7 Bracelet Is High Quality?

A Super 7 bracelet is high quality when the seller names every mineral in the beads, because the name on a listing does not by itself verify what the beads are made of. Once the minerals are named, judge them by published hardness and toughness data. For example, GIA rates amethyst at Mohs 7 with good toughness and moonstone at Mohs 6–6.5 with poor toughness.

Bolivian Dusk · $165. View this piece’s details →

Last updated: September 27, 2026

By Mara Ellison · Founding Editor, Dusk & Relic Journal

What makes a Super 7 bracelet high quality?

A Super 7 bracelet is high quality when two things are true. The seller can name every mineral in the beads, and those named minerals suit a piece that is worn on a wrist. One rule covers both checks: verify the name first, then judge the stone. A good photo cannot do either job.

This guide does not have a mineral-level source that defines Super 7, so it does not list what Super 7 contains. The practical step for a buyer is to ask the seller which mineral each bead is made of. The buyer can then compare those minerals against GIA's published hardness and toughness data.

The same order of checks applies to judging the quality of any crystal bracelet. The stone name on the tag comes first, and the physical properties come second.

Does the name on a listing prove what the stone is?

No. A trade name on a listing does not verify a bead's mineral identity. GIA gives a clear example. GIA describes "rainbow moonstone" as a trade name for certain labradorite rather than orthoclase, and GIA notes that a trade name alone does not verify a particular product's mineral identity (GIA moonstone description).

GIA defines classic orthoclase moonstone as intergrown orthoclase and albite feldspars. Light scatters at the layers of those feldspars and produces adularescence, a glow whose appearance changes with viewing angle.

The same logic applies to a Super 7 bracelet. A listing that says only "Super 7" gives a buyer a name, not a mineral list. Buyers should ask the seller for the mineral list before they decide on quality.

How do common bracelet stones compare on hardness and toughness?

GIA's numbers put amethyst ahead of moonstone on both hardness and toughness. Mohs hardness only measures scratch resistance. Toughness and cleavage describe how a stone handles impact.

Stone	Mohs hardness (GIA)	Toughness (GIA)	Breakage note (GIA)
Amethyst	7	Good	Mohs does not measure breakage resistance
Moonstone	6–6.5	Poor	Two cleavage directions make strong impacts a breakage risk

GIA states that the Mohs scale compares resistance to scratching and does not measure resistance to breakage (GIA amethyst care). A Mohs 7 rating on an amethyst bead describes how well the bead resists scratches. The rating is not a drop-test result.

A listing such as Bolivian Dusk (11.5mm Bolivian amethyst with freshwater pearl, $165) names amethyst outright, so a buyer can look up amethyst's GIA data directly.

Why can a Mohs 7 stone still get scratched?

Amethyst can still get scratched because quartz is a major component of ordinary sand and dust. GIA makes this point and says amethyst still needs care against scratches, even at Mohs 7.

An amethyst bracelet should still be stored and handled with some care. The Mohs rating tells a buyer how amethyst compares with other stones for scratch resistance. The rating does not make amethyst exempt from scratching.

How should a gemstone bracelet be cleaned without harming the stones?

Warm water and soap is GIA's recommended cleaning method for both amethyst and moonstone. The limits differ by stone:

• Amethyst: GIA advises against steam and heat. GIA also qualifies ultrasonic cleaning for dyed or fracture-filled amethyst.
• Moonstone: GIA excludes both steam and ultrasonic cleaning. GIA describes moonstone as stable under light exposure. High heat and sudden temperature shifts can cause moonstone to fracture (GIA moonstone care).

This GIA care advice applies to the gemstones only. The advice does not cover a bracelet's cord, metal finish or other components.

For a mixed piece such as Little Planet (10mm aquamarine and moonstone, 18k gold-plated hardware, $95), GIA's moonstone guidance covers the moonstone beads only. The guidance does not cover the aquamarine or the plated hardware.

What does a well-specified bracelet listing include?

A well-specified bracelet listing names each mineral, gives the bead diameter in millimetres and states a price. With those details, a buyer can check every stone against GIA data instead of relying on a single name.

Happiness Is (11mm, $95) lists each bead stone by name. The list includes strawberry quartz, aquamarine, amethyst, citrine, tiger's eye, black rutilated quartz, moss agate and clear quartz, along with .925 sterling silver. A mixed-stone bracelet like this one needs a separate care check for each stone. The GIA amethyst guidance above covers only the amethyst beads.

A single-stone listing is simpler to check. Clear Water (9mm clear quartz nuggets, $95) names one mineral, so a buyer has only one mineral to research.

Does a higher price mean a higher-quality bracelet?

Price alone does not tell a buyer which minerals are in a bracelet. The named mineral list does. Two bracelets at the same price can still differ in stone, bead size and hardware.

Golden Thread (10.5mm gold rutilated quartz, 18k gold-plated hardware, $115) and Sunstruck (8mm raw citrine/lemon quartz nuggets with clear quartz, .925 sterling silver, $115) have the same price. The two listings differ in both the stones and the metal they name.

Some buyers want to know what a real crystal bracelet originally costs. Others are shopping for a crystal bracelet on a set budget. In both cases, a buyer should confirm the mineral names before comparing prices.

FAQ

Does a high Mohs number mean a bead will not break if dropped?

No. GIA states that the Mohs scale compares resistance to scratching and does not measure resistance to breakage. Moonstone, for example, has poor toughness and two cleavage directions, so GIA treats strong impacts as a breakage risk.

Is rainbow moonstone the same mineral as classic moonstone?

GIA describes rainbow moonstone as a trade name for certain labradorite rather than orthoclase. Classic orthoclase moonstone is made of intergrown orthoclase and albite feldspars.

Can a gemstone bracelet go in an ultrasonic cleaner?

For moonstone, GIA excludes ultrasonic cleaning. For amethyst, GIA qualifies ultrasonic cleaning for dyed or fracture-filled stones. GIA's first recommendation for both stones is warm water with soap.

Will sunlight fade a moonstone bracelet?

GIA describes moonstone as stable under light exposure. High heat and sudden temperature shifts are the bigger concern for moonstone, because GIA says they can cause fractures.

Does GIA's stone care advice cover the bracelet cord and metal?

No. GIA's care guidance for amethyst and moonstone covers the gemstones only. The guidance does not establish the safety of a bracelet's cord, metal finish or other components.

Is moonstone a June birthstone?

Yes. GIA lists moonstone as a June birthstone, together with pearl and alexandrite.

Why does amethyst need scratch care if it is fairly hard?

GIA notes that quartz is a major component of ordinary sand and dust. For that reason, GIA says amethyst still needs care against scratches.