Answer first
Chain quality on a fake Givenchy bag comes down to four checks: metal type, link weight, plating thickness, and the engraving on the clasp. Copies in the $120 to $200 range often use hollow zinc links with 0.5 micron plating. Top tier copies use solid brass, 2 to 3 micron plating, and an engraving that matches the reference part. The chain is cheap to fake and cheap to cut, so it shows tier faster than leather does.
Check the metal, not the shine
Brass has a density near 8.5 g per cubic centimeter. Zinc alloy sits near 6.6. Steel sits near 7.8. Two chains of the same length and link size feel different in the hand for this reason. Weigh the chain on a kitchen scale to 0.1 g and write the number down. Shake the chain near your ear. A hollow link rattles. A solid link gives a dull sound and no ring.
Link count and link shape
Count links over a set span, for example 10 cm. Measure total length end to end with the clasp closed. Replica chains often run 1 to 2 cm short or long against the reference. Look at the joint. Solid links are welded shut with no gap. Stamped links show a seam that opens under a 5 kg pull.
Plating and color
Gold tone plating on costume hardware runs 0.5 to 1 micron at the low end and 2 to 3 microns on better parts. Wipe the chain with a dry cloth for 30 seconds. Yellow or grey pickup on the cloth points to a thin flash layer. Rub one link with a soft eraser on a hidden spot. Copper under the gold means the base metal is exposed.
givenchy bag fake chain durability
Clasp and engraving
Givenchy hardware carries the house name. Check letter spacing, letter height, and cut depth. Replica engraving is shallow, with rounded edges from a worn stamp. Under a 10x loupe, good stamping shows a flat floor and sharp sidewalls. The spring gate should open with steady force and close with a click you can hear. A gate that flops, or needs two hands, points to a weak spring.
Wear test over 30 days
Carry the bag daily for a month and check four points: the clasp spring, the link joints, the strap anchors, and the color at contact points. Fading at the anchor rings shows first. Rust spots on a steel chain point to a low grade alloy with a nickel flash.
Price bands and what they buy
Below $80: hollow links, thin plating, cast clasp. $80 to $150: solid zinc, better plating, stamped logo. $150 to $300: brass links, 2 micron plating, closer engraving. Above $300 the chain stops improving, so the money goes to leather and stitching.
Note: no public spec sheet lists Givenchy chain weights or plating thickness. The numbers above are trade ranges used in hardware manufacturing, not brand figures.