HOT ! Gold and White Diamond 14K Necklace

Gem-level: 5A Green CZ, Mohs 8–8.5; 5A Moissanite, ≥99.9% purity, Mohs 9.25

Gem-color level: D–F color, 95% light return, ΔE ≤ 1.5, no visible tint

Gem-clarity: VVS grade, crystal inclusion rate <1%

Main material-Metal properties: 925 Sterling Silver, silver content 92.5% ± 0.8%, Vickers hardness HV80–100

Gem-level: 3A Green CZ, Mohs 6–7; 3A Moissanite, ≥95% purity, Mohs 8.5

Gem-color level: F–G color, 87% light return, ΔE > 3.5, prone to tint

Gem-clarity: SI1 grade, crystal inclusion rate 5%–8%

Welding: Laser welding; seam gap ≤ 0.02mm, weld surface roughness (Ra) ≤ 0.3μm, smooth and seamless finish

Gem Setting: Hand + machine setting, prong height deviation ≤ 0.25mm, secure fit, no looseness

Plating: Coating thickness ≥ 2μm, anti-tarnish, anti-oxidation

Cutting: Machine cutting only, facet deviation ≥ 0.03mm, surface roughness Ra ≥ 0.2μm, poor light reflection

Welding: Traditional welding; seam gap ≥ 0.1mm, weld surface roughness (Ra) ≤ 0.8μm — visible welding residue and burrs

Gem Setting: Machine prong setting, prong height deviation ≥ 1mm, loose fit, risk of stone falling

Plating: Coating thickness usually ≤ 0.6μm, prone to oxidation and fading