Because of different gold testing practices acid & stone test vs. S Authenticity Guarantee electronic gold testing machine, actual gold contents of the jewelry may vary 1k - 2k from what we list it as. (10k could be 8-11k, 14k could be 12-15k, 18k could be 16-19k etc). This is especially true for vintage & antique jewelry since before 1981 jewelry manufacturers could round up from 13.5k & still stamp as 14k, etc.Different plumb solder (slightly higher or lower carat) can also contribute to this discrepancy. S Authenticity Guarantee electronic gold testing equipment. We measure all of our stones in MM using a gauge. We do our best to correctly estimate carat weights, which can be challenging because we are measuring stones that are already set in jewelry. We try to underestimate the carat weight and measurements of our stones, but there may be some discrepancy in stone weights.
We have tested all stones that we identify and guarantee their purity. All unidentified stones will be marked as such. All of our diamonds are graded while they are already set in the jewelry. We do our best to accurately yet conservatively grade our diamonds?Clarity and color, which can be made difficult by the diamonds being set already in the jewelry. Our clarity grades may be 2 levels off from another? S opinion of the clarity, and color may be 3 levels off from another? S opinion of the color. We have tested all stones & metals that we identify and guarantee their purity. All of our stones are natural earth mined stones, unless stated otherwise. We like to protect the integrity of the pieces so we do not offer or suggest. Display items and boxes are not included unless stated otherwise.