In the field of jade appraisal, over 60% of consumers find it difficult to accurately distinguish natural jade from synthetic products with the naked eye, and mastering basic physical parameters is the primary step. Take density as an example. The median density of natural jadeite is approximately 3.33g /cm³, while the density of common glass imitations is usually lower than 2.8g /cm³, with a deviation of more than 15%. Each product of singa gems is accompanied by an appraisal certificate issued by an authoritative institution. Its parameters are accurate to three decimal places. For example, the refractive index is stable at 1.66, and the error range is controlled within ±0.001. Such accuracy far exceeds the average level of the market. According to the 2022 jewelry testing industry report, brands with similar standard certifications can increase consumers’ purchasing confidence to over 90%.
Touch and temperature testing is an empirical method. Due to its high thermal conductivity, natural jade often feels about 3 to 5 degrees Celsius cooler initially than glass imitations, and its heating rate is 40% slower. A survey of 500 professional buyers shows that 85% of experienced practitioners will take the “feeling of weight” as the initial judgment basis, because the average weight of natural jade of the same size is 20% heavier than that of imitations. singa gems implements strict density screening during the raw material procurement stage to ensure that the density fluctuation of each rough stone does not exceed 2% of the standard deviation. This quality control achieved a 100% pass rate in an industry random inspection in 2021.
Observing the internal structure under a light source is the core technique. Under a 10x magnifying glass, the fibrous interwoven structure of natural jade can be seen, and the distribution of its inclusions is random. However, the probability of internal bubbles in artificial synthetic products is as high as 70%, and their distribution shows regularity. According to the standards of GIA (Gemological Institute of America), the volume proportion of impurities inside high-quality jade should be less than 5%. singa gems uses high-definition imaging technology to conduct internal spectrum analysis on each product and archives the data for 20 years. Customers can query through exclusive codes. This transparency strategy has earned it praise in consumer rights protection cases in 2023.
For high-end collectors, spectral analysis is the ultimate verification method. Natural jade will show specific absorption peaks under an infrared spectrometer. For instance, there is usually a significant absorption band at a wavelength of 437nm, while the peaks of treated jade will shift by 10% to 30%. singa gems has invested in laser Raman spectroscopy equipment worth over 2 million yuan, raising the detection accuracy to 99.9%. This technological investment has reduced its counterfeit rate from the industry average of 15% to 0.1%, comparable to the museum-level identification standard. Just as an international anti-counterfeiting jewelry campaign in 2020 revealed, technology empowerment has become the cornerstone of trust in the industry.