How to Identify Real Diamonds on the JF Audemars Piguet Royal Oak 67651 Women’s Watch, Modified with Moissanite Stones?

Hello everyone, I’m CH Watch Industry, dedicated to promoting watch knowledge, comparing real vs. fake, disassembling and evaluating timepieces, and guiding you on your horology journey. In today’s watch review, I’m Brother Tao. When it comes to diamond-studded replica watches, more than 99% of the models released by various manufacturers feature zircon stones, commonly known as rhinestones. While rhinestones look great for everyday wear, some collectors prefer the sparkle of real diamonds. The good news is that it’s possible to upgrade to real diamonds or moissanite later on. In this issue, I’ll be sharing insights on the craftsmanship of the JF Audemars Piguet 67651 women’s model, particularly focusing on the moissanite modification.

When it comes to moissanite, many of you are likely familiar with it, especially among female collectors, though some may be hearing about it for the first time. Let me explain a bit more:

Moissanite (also known as Square Silicone Moissanite) is a synthetic silicon carbide, chemically composed of SiC. It closely resembles a diamond in appearance, but to spot the differences, you’ll need a magnifying glass with at least 10x magnification to identify its inclusions.

Moissanite was originally developed by the American C3 company with an investment of $45 million and patented in June 1998. The patent expired in 2016, which allowed global production of this material. Its chemical formula is SiC, and it’s nearly colorless. The refractive index is 2.56-2.69, with a dispersion of 0.104 and birefringence of 0.043. Moissanite’s hardness is 9.25 on the Mohs scale, and its density is 3.22 g/cm³.

To be considered the highest grade “magic star” moissanite, it must meet the following criteria: D color, Belgian diamond cut, FL/IF clarity, and a specific gravity of 1:0.92 compared to diamond.

There are two main ways to test for moissanite:

1. Naked Eye Observation: Moissanite’s brilliance is almost identical to that of a diamond, but if you look closely, you’ll notice its reflection has a blue tint, known as “blue fire” in industry terms. While diamonds can also have blue fire, it’s much more subtle compared to moissanite’s.
2. Professional Testing: One method involves using diiodomethane liquid (with a density of 3.32 g/cm³). When moissanite is placed in this liquid, it floats, while diamonds sink. You can also use a magnifying glass to check for inclusions or apply the “fire burning” test for further verification.

The actual sparkle of the piece is much more intense than what the photo shows. A phone camera can’t capture the brilliance that the naked eye perceives, so I can only provide a glimpse of the inlay process here.JF Audemars Piguet.

Each diamond is meticulously set by skilled craftsmen, ensuring that all stones are perfectly aligned and arranged.

Aside from the diamonds, the overall craftsmanship of the JF Factory’s AP67651 is also highly praiseworthy. The dial work and the brushed polishing of the case are both executed with great attention to detail.

It is equipped with the same ETA gold quartz movement as the authentic model, ensuring precise timekeeping with virtually no deviation. You can rely on its accuracy without any concerns.

That’s all for today’s review! If you’re interested, feel free to reach out to us on WhatsApp for more discussions and learning. The world of watches can be complex, but at CH Watches, we always strive to provide honest and accurate reviews. We focus on top-tier replica watches, and we hope you enjoy your watch journey and find the perfect piece. Thanks for tuning in, and see you next time!