Which is better for everyday wear?

The 3mm. It is lighter, sits flatter and buyers report it stays in place and does not tarnish with lotion or cologne. The 6mm is heavier and stiffer and can twist at the back.

Which looks more like a real diamond chain?

The 6mm, because its roughly 1-carat stones give the size and sparkle people expect from a diamond tennis chain. The 3mm is more discreet at about 0.3 carat per stone.

Is the 6mm worth the extra?

Only if you want the bolder look. The stones, plating, GRA report and lifetime warranty are the same, so you are paying for size and sparkle, not better materials.

Do both pass a diamond tester?

Yes. Adamans says both pass most handheld diamond testers, and both use moissanite with a Mohs hardness of 9.25 and a refractive index of 2.65.

On paper they are identical, but buyer reports favor the 3mm: several 6mm buyers report tarnish and plating wear within weeks, while 3mm buyers report no tarnish. Plating wear is the main long-term risk on both.

Will either turn my skin green?

Adamans says neither will, and 3mm buyers report no skin marks. Some 6mm buyers report allergic reactions and marks, so sensitive skin is a reason to pick the 3mm.

6mm Moissanite Tennis Chain - Silver - D Color - VVS1 vs 3mm Moissanite Tennis Chain - Silver - D Color - VVS1

Both are the same Adamans moissanite tennis chain in silver, D color, VVS1, with a lifetime warranty and the same 4.8 rating. The real choice is width: the 6mm reads as a statement piece with about 1 carat per stone, while the 3mm is a subtle 0.3-carat-per-stone chain that sits flatter and twists less. No prices were given for either, so compare live store prices on this page before deciding.

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