Oval Smoky Quartz and Diamond Ring in Yellow Gold

This is a contemporary-style cocktail ring featuring a prominent oval-cut smoky quartz gemstone as the centerpiece. The quartz exhibits a deep translucent brownish-grey color and is secured by four traditional yellow gold prongs. Flanking the central stone on either shoulder of the band is a small, round-cut accent stone, likely a diamond, set in a simple basket or prong mounting. The shank of the ring appears to be crafted from polished 10k or 14k yellow gold and has a slender, slightly tapered profile. The gemstone shows characteristic clarity for smoky quartz, though some surface abrasions or internal inclusions are visible. The setting shows minor signs of wear consistent with regular use, including light surface scratches on the gold band. The overall design suggests a mid-to-late 20th-century manufacture, characterized by a minimalist aesthetic that focuses on the scale and earthy tone of the quartz. There are no visible maker's marks or hallmarks from this angle, but the craftsmanship appears consistent with commercially produced fine jewelry.

I have conducted a visual inspection of this contemporary cocktail ring. The centerpiece is a prominent oval-cut smoky quartz, approximately 3.5 to 5.0 carats, exhibiting a desirable 'tea' saturation with high transparency. The setting is a classic minimalist four-prong mount in yellow gold, likely 10k or 14k based on the era and style. The condition is 'Good,' showing expected surface abrasions on the quartz facets and light micro-scratching on the shank consistent with light-to-moderate wear. Markets for smoky quartz are currently stable; however, as quartz is an abundant mineral, the primary value is derived from the gold content and the aesthetic appeal of the setting rather than the rarity of the gem. Comparables for mid-to-late 20th-century commercial quartz rings typically fall in the sub-$500 category. The lack of visible hallmarks suggests mass production or possible resizing that removed marks. This appraisal is limited by the digital format; I cannot confirm the gold purity through acid testing or verify the accent stones as natural diamonds without a refractometer and thermal probe. A definitive valuation would require an in-person weight measurement in grams (DWT) and inspection of the stones under 10x magnification to confirm they are not synthetic or glass substitutes.