A buyer in Amsterdam told us they ordered 30 pairs of moissanite stud earrings in 6.5 mm, sold 27, and had 9 returned because the posts were too thick for the wearer's piercing. The stones were the right size. The post gauge was 0.9 mm, which is a men's gauge; a standard women's piercing runs 0.7 to 0.8 mm. Stud earrings fail on the post, not the stone. Drop earrings fail on the back and the drop length.
Custom moissanite earrings split into two product lines — studs and drops — with different engineering. Below are the post, back and drop-length values we spec on each line.
Stud earrings: post gauge and backs
We build studs in four stone sizes: 4.0, 5.0, 6.5 and 8.0 mm. The post gauge scales with the stone. For 4 to 5 mm stones we use a 0.7 mm post; for 6.5 mm, 0.8 mm; for 8 mm, 0.9 mm. The Amsterdam buyer above ordered 0.9 mm posts on 6.5 mm stones, which is the upper end, and that is what their clients could not wear.
The back is the second point. Friction backs (butterfly) are standard on 4 to 5 mm stones; push-on screw backs are standard on 6.5 mm and up because the heavier stone pulls the friction back loose. We do not ship screw backs on stones under 5 mm because the threading makes the post too short for a thick earlobe. Our studs vs drops reference lists the same sizes for stock orders.
Drop earrings: post, hinge and drop length
Drops are hinged. The post is usually an omega clip or a French hook, not a straight post. We spec three drop lengths: 1.5 cm (short, office wear), 2.5 cm (standard evening), and 3.5 cm (statement). A drop over 4.0 cm pulls on the earlobe and stretches the piercing over months. The hinge must carry the drop weight; we use 1.0 mm hinge wire on drops under 3 g and 1.2 mm on drops over 3 g.
Because moissanite has a higher refractive index than diamond, drops show more movement and sparkle; buyers sometimes overspec the drop length. We quote a 2.5 cm drop as the default, not 3.5 cm. The longer the drop, the more the earlobe feels the swing, and a 3.5 cm drop on a slim earlobe reads heavier than it is. We photograph each drop on a standard earlobe form so the buyer can see the swing before they order.
Stud vs drop: which line to stock
Studs are 68% of our custom earring orders; drops 32%. Studs have a lower return rate (roughly 5%) because the failure modes (post gauge, back) are fixed at manufacture. Drops return closer to 11% because the hinge loosens, the drop length is wrong for the client, or the clip pinches. For a buyer's first custom earring run we recommend 60% studs and 40% drops. Our small-batch MOQ guide lists the per-unit price steps for a mixed stud-and-drop order.
Metal and allergy spec
Earrings are worn through pierced skin, so nickel release is a hard requirement. We build earring posts to EU nickel-release limits and note the alloy on the QC sheet. Sterling posts are 925 sterling with a rhodium flash; we flag that the rhodium wears in 12 to 18 months and the post can be re-plated. Our silver vs gold guide lists the per-unit price for solid 14K posts.
Matching studs and drops in one collection
Buyers often run a stud and a drop in the same stone size and metal. We match the stone color (DEF) and the metal finish so the two styles read as one collection. The drop uses the same head as the stud plus a hinge; this keeps the design language consistent. Our matching sets guide covers the same consistency rule across a larger collection.
What post gauge do most women's piercings fit?
0.7 to 0.8 mm. We spec 0.8 mm on 6.5 mm studs as the default, not 0.9 mm.
Do screw backs work on small studs?
No. The threading shortens the post and makes it too tight on a thick earlobe. We use friction backs on 4 to 5 mm studs.
What drop length is the most popular?
2.5 cm. A 3.5 cm drop is a statement style, not a default.
How heavy can a drop earring be?
Under 5 g per ear. Over that weight the earlobe stretches and the hinge loosens within six months.
Are moissanite studs safe for sensitive ears?
Yes, when the post is 925 sterling or 14K gold to nickel-release limits. We do not ship plate-only posts on pierced earrings.
Send us the stone sizes, the post gauge and the drop lengths you want to retail. We return a matched spec sheet and a render of the stud and drop as one collection. Order your custom moissanite earrings today.
Frequently Asked Questions
Is moissanite a good diamond alternative for retail buyers?
Yes for price-sensitive customers who want brilliance and hardness. Moissanite ranks 9.25 on the Mohs scale, holds up to daily wear and costs a fraction of a natural diamond of the same size, so it resells fast in bridal and fashion lines.
What is the minimum order for wholesale moissanite?
MOQ starts at 50 pieces per design for stock items. Custom cuts and private-label settings usually start at 100–300 pieces depending on the mold.
Do you provide certificates with moissanite stones?
Yes. Every parcel ships with GRA or IGI documentation listing carat weight, color grade and cut. We recommend passing the certificate to your end customer for trust.
How long does sample and bulk production take?
Samples ship in 3–5 days. Bulk runs take 15–20 days under 500 pieces, and 25–30 days for custom work.
