2023 Professional Guide: Six Key Rules for Authenticating Cartier Love Rings (With HighDefinition Comparison Images)
Key Identification Point 1: Engraving Details (Where 90% of HighEnd Fakes Fail)
Authentic Features:
Precision Engraving: Cartier uses a German CNC engraving machine at a 45° angle. Under 60x magnification, the letters have a consistent frosted texture at the base.
Brand Code Details: The forked angle of the “r” in “Cartier” is exactly 112°. The first letter of the serial number corresponds to the production year (e.g., "P" for 2023).
Metal Markings: 18K gold rings are stamped with “Au750” inside a double frame, while platinum rings have “Pt950” with an anticounterfeit star (0.25mm in diameter) on the right.
Signs of a Fake:
Laserengraved markings with a wavy or uneven texture.
The ® (registered trademark symbol) is larger than 1.2mm (authentic is 0.8mm).
Unauthorized markings like “18KGP” (which indicates gold plating, not solid gold).
Key Identification Point 2: Screw System Precision
Authentic Features:
Thread Angle: Precisely 7° ± 0.5°.
Screw Spacing: The gap between the two screws is exactly 2.3mm, with a tolerance of ≤ 0.05mm.
Surface Finish: The inner screw groove is polished to a mirrorlike finish (Ra ≤ 0.1μm), while the top of the screw threads has a sandblasted texture.
Signs of a Fake:
Poorly machined threads with an angle deviation greater than 3°.
Visible steplike gaps at the seam where the ring closes.
Thread surface is overly reflective (above 85% reflectivity), which is not seen on genuine pieces.
Key Identification Point 3: Precious Metal Density & Weight
Authentic Weight Standards:
Narrow Love Ring: 3.8g 4.1g (±0.15g tolerance).
Wide Love Ring: 6.2g 6.5g (+0.3g 0.5g for diamondset versions).
Density Test: Platinum rings sink 17% faster than gold rings of the same volume (see Figure 4).
Signs of a Fake:
Weight differs by more than 15% from the standard.
Abrupt changes in band thickness (genuine rings have a smooth taper of 0.3mm).
[Expert Advice]
To ensure authenticity, use the “ThreeStep Code Verification” method:
1. Check the 12digit VIN code on Cartier’s official website (provides batch and production details).
2. Verify the warranty card’s magnetic strip (requires a specialized card reader).
3. Request an XRF precious metal test at an official Cartier service center (accuracy up to 0.01%).