An 18ct gold sapphire and diamond ring. Sapphire calculated weight 1.64cts, based on estimated

A 1970s 18ct gold sapphire and single-cut diamond cluster ring. Sapphire calculated weight 0.95ct, based on estimated dimensions of 7.2 by 5.2 by 3mms.Estimated total diamond weight 0.35ct.Hallmarks f

A 9ct gold blue sapphire and white gem cluster ring and a diamond three-stone ring. Calculated weight of sapphire 2.68cts, based on estimated dimensions of 9 by 7.1 by 5mms. Estimated total diamond we

A sapphire and pavé-set diamond dress ring.Sapphire calculated weight 1.55cts, based on estimated dimensions of 8 by 6.1 by 3.8mms. Estimated total diamond weight 1.50cts, G-H colour, VS2-SI1 clari

A sapphire and diamond dress ring. Sapphire calculated weight 0.60ct, based on estimated dimensions of 5.1 by 4.5 by 2.6mms.Estimated total diamond weight 0.65ct.Stamped PLAT.Ring size N. 5.3gms.

An 18ct gold garnet and diamond dress ring.Garnet calculated weight 1.90cts, based on estimated dimensions of 8 by 6.1 by 4.4mms.Estimated total diamond weight 0.12ct.Hallmarks for Edinburgh, 2005.Rin

A yellow sapphire and old-cut diamond cluster ring. Sapphire calculated weight 20.06cts, based on estimated dimension of 17.35 by 13.5 by 10.2mms.Estimated total diamond weight 1.50cts, G-H colour, pr

A yellow sapphire and diamond three-stone band ring.Sapphire calculated weight 4cts, based on estimated dimensions of 8.2 by 9.3 by 6mms.Estimated total diamond weight 1ct, I-J colour, SI1-P1 clarity.

A sapphire and brilliant-cut diamond cluster ring.Sapphire calculated weight 1.58cts, based on estimated dimensions of 7.8 by 5.9 by 4.1mms.Estimated total diamond weight 0.50ct, H-J colour, SI1-P1 cl

An 18ct gold sapphire and brilliant-cut diamond three-stone ring, sapphire estimated weight 2ct, estimated total diamond weight 0.40ct, estimated L-tinted colour, VS2-SI1 clarity, hallmarks for Birmin

A late Victorian gold graduated sapphire five-stone ring. Central sapphire calculated weight 0.70ct, based on estimated dimensions of 5.6 by 4.2 by 2.9mms.Ring size M. 3.2gms.

An 18ct gold pink tourmaline, diamond and emerald leopard ring.Tourmaline calculated weight 2.40cts, based on estimated dimensions of 9.8 by 7.1 by 6mms.Estimated total diamond weight 0.45ct.Italian m

An 18ct gold pink sapphire and diamond band ring. Total pink sapphire weight 0.38ct.Total diamond weight 0.24ct, estimated I-J colour, SI clarity.Hallmarks for London, 2006.Ring size N1/2. 3.8gms.

An 18ct gold sapphire and diamond cluster ring. The sapphire and single-cut diamond floral cluster, to the plain band. Estimated total diamond weight 0.15ct. Hallmarks for Birmingham. Ring size N 1/2.

An 18ct gold sapphire and diamond ring. Comprising three oval-shape sapphires, with brilliant-cut diamond double spacers. Estimated total diamond weight 0.10ct. Hallmarks for London. Ring size N. Weig

An 18ct gold sapphire and diamond ring. The oval-shape sapphire, with brilliant-cut diamond sides. Estimated total diamond weight 0.20ct. Hallmarks for Birmingham, 1986. Ring size H. Weight 2.1gms.

An 18ct gold sapphire and diamond cluster ring. The oval sapphire, within a brilliant-cut diamond scalloped surround and tapered band. Estimated total diamond weight 0.20ct. Hallmarks for Birmingham,

A mid 20th century 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within an old-cut diamond border, to the trifurcated shoulders and plain band. Estimated total diamond weight 1

An 18ct gold sapphire and diamond dress ring. The oval-shape sapphire, within a pave-set old-cut diamond surround, to the bifurcated shoulders. Estimated total diamond weight 1.50cts. Hallmarks for Bi

An 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within a brilliant-cut diamond surround, to the tapered shoulders and plain band. Estimated total diamond weight 0.85ct, I-J co

An 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within a single-cut diamond surround, to the tapered shoulders and plain band. Estimated total diamond weight 0.30ct. Hallmarks

An 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire collet, within a baguette-cut diamond border. Estimated total diamond weight 0.75ct, H-I colour, VS clarity. Hallmarks for Birmi

An 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within a single-cut diamond surround, to the plain band. Estimated total diamond weight 0.45ct. Hallmarks for London, 1976. Rin

A mid 20th century 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within an old-cut diamond, illusion-set surround. Estimated total diamond weight 0.30ct. Weight 5.7gms.

An 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within a brilliant-cut diamond surround, to the plain band. Estimated total diamond weight 0.25ct. Hallmarks for Birmingham, 19