18-Inch Tanzanite and Sterling Silver Tennis Necklace

This is a classic 'tennis style' linear necklace measuring approximately 18 inches in length. The piece is meticulously constructed with a continuous sequence of small, oval-cut tanzanite gemstones. Each gemstone displays a characteristic light-to-medium violet-blue hue consistent with 'AA' grade material, showing decent clarity and pleochroism under the light. The stones are secured in individual four-prong basket settings made of polished white metal, identified by the user as sterling silver. The links are articulated to allow the necklace to drape flexibly along the contours of the wearer's neck. While no specific maker's mark is visible in the photograph, the craftsmanship indicates a contemporary manufacturing style, likely from the late 20th to early 21st century. The condition appears to be very good with no missing stones or significant visible damage to the prongs, though minor surface scratches on the silver and slight professional cleaning may be needed to maintain its high-luster finish. The uniformity of the stone matching across the strand suggests a quality production standard for semi-precious fine jewelry.

I have virtually examined this 18-inch tanzanite tennis necklace. The piece features a high-count sequence of oval-cut tanzanites set in a classic four-prong sterling silver basket mounting. Based on my visual assessment, the gemstones exhibit the characteristic trichroic properties of tanzanite, with a violet-blue color saturation consistent with 'AA' commercial grade material. The construction appears to be high-quality contemporary casting with articulated links that suggest fluid movement and durability. The current market for tanzanite remains stable, though value is heavily dictated by color saturation; while these stones are attractive, they lack the deep 'AAA' velvety blue-violet hues that command top-tier premiums. Sterling silver remains a popular, accessible medium for this style, though it sits at a lower price point than 14k gold counterparts. Comparables for 'AA' tanzanite silver tennis necklaces typically retail in the mid-hundreds range. Limitations of this appraisal include the inability to verify metal purity with an acid test or XRF analyzer, or to confirm via loupe whether the stones are natural, heat-treated, or synthetic stimulants. A final determination of value would require an in-person inspection to check for facet wear, stone chips, and the security of the clasp mechanism. To fully authenticate this item, a laboratory report from an organization like the GIA would be necessary to confirm the stones' origin and treatment status.