Ring – Citrine Flower Cluster
A single stone ring featuring a precision cut¹ citrine in a four-claw setting, with a handmade yellow and rose gold-coloured boarder realistically styled as sunflower. Circa 2010-2015.
Assessment of the Citrine.
Cut: round three-tiered Portuguese-cut crown over similar pavilion (“Mini-Portugese”, designed by Greg Glenn).
Measuring: 13.69mm x 13.55mm x 8.02mm.
Weight (stone weighed loose): 6.91cts.
Colour: strong orange yellow (10YR.12/7).
Details of the Setting.
Unhallmarked: tested and valued as 9ct gold.
Marked: ‘375’ (one other indistinct mark observed).
Finger size: O.1/2.
¹. Gemstones are fashioned by way of cutting facets (flat surfaces). In the majority of cases the accuracy and precision of faceting, along with the quality of surface polish are regarded as less important – instead being cut to retain as much weight as possible. This result never makes the most of the unique optical properties a gemstone. Much light entering the gemstone is instantly lost out of the back (‘windowing’), or completely absorbed (extinction).
‘Precision cuts’ (sometimes called designer cuts) describe stones produced by cutters who employ highly specialised equipment which allows for assured repeatability, precision, and accuracy. The process of obtaining a highly flat facet requires the cutter to return to each facet time and time again, with ever finer cutting laps – consequentially each facet may be cut, and then re-cut between four and ten times. A finely cut facet improves the quantity and sharpness of light. The quality of light is further enhanced by close attention to the particular optical properties inherent to the nature of the material being cut – these facets are optimally angled for reflection. Such techniques allow cutters to produce designs which are unavailable from traditional techniques; superlative gems, some with unusual facet designs, or unique face up patterns.