The baby of the 18ct gold trombone family — a beautifully characterful ICONS piece, with two rose cut diamonds (approx. 0.11ct total) set back-to-back in platinum cut-down collets, in homage to Georgian-era construction.
The double-sided setting allows light to pass through both stones, creating a soft, subtle shimmer typical of early diamond jewellery. The platinum collets contrast beautifully against the warm 18ct gold, enhancing the antique aesthetic.
Constructed from antique 18ct gold components, with all links stamped crown “18”, including a small trombone link and oval connector. The more refined scale of this piece makes it perfect for layering or adding a subtle point of interest to finer chains.
Finished with a French antique swivel dog clip clasp, stamped with the eagle head hallmark. Designed as a versatile extender or connector to elevate and reconfigure your chains. Clasp customisation or additions can be arranged on request (additional cost).
A one-of-a-kind ICONS design.
Antique Rose Cut Diamond Trombone Link Extender, 18ct Gold and Platinum
- Era: Antique Victorian components
- Metal: 18-carat gold and platinum
- Stones: 2 Rose cut diamonds, approx 0.11ctw
- Extender length: 47mm
- Width: 6.25mm (trombone link)
- Trombone link size: 21.25 mm x 6.25, 1.75mm thick
- Dog clip: 23mm (including swivel bail)
- Weight: 4.92 grams
- Hallmarks: Trombone and oval link stamped crown “18”, dog clip stamped with French eagle head, additional mark to bail (illegible, likely maker’s mark)
- Condition: Excellent antique condition.
- Ready to ship: March 31st, 2026
Unless otherwise stated, any chains, jewellery boxes, and other items photographed with the listed piece are for advertising purposes only and not sold with this piece.
































