Sapphire and Diamond Pendant Necklace - Secondhand

Eleven stone oval faceted sapphire and mixed cut diamond pendant in 18 carat white gold.  The oval sapphire is rub-over box collet set with a row of three channel set baguette cut diamonds above.  From each side of this is a row of three graduated modern brilliant cut diamonds rub-over box collet set.  There is a further old Swiss cut diamond rub-over box collet set below the sapphire.

The sapphire measures 10.20 x 7.80mm approximately.  

The diamonds measure 2.80 x 2.20mm and 1.90-2.90mm.  The total diamond weight is estimated as weighing 0.50ct approximately.  The length being 22.00mm approximately.  

18ct hallmarked London.  The maker is MB.

Attached is a modern new 18 carat white gold trace link chain with a trigger clasp, length 16" (optional - please select from style variant)

Our reference - P777AP / 10-16-163$