Freshwater pearl, set with diamond shoulders.A nine-and-a-half-to-ten-millimetre cultured freshwater pearl at the centre, chosen at the source for luster and roundness. Point-three-five carats of round-brilliant diamond run along the shoulders in fourteen-karat white gold; the pearl sits forward of the band, held cleanly in...

Garnet, set in fourteen-karat white gold.An eight-by-eight-millimetre garnet at the centre, hand-selected at the source for the deep red saturation, paired with point-one carats of round-brilliant diamond at the shoulders. Set in fourteen-karat white gold, shaped and finished in the New York atelier; the...

Garnet, framed in a halo of diamond.A seven-by-seven-millimetre garnet at the centre, hand-selected at the source for colour, surrounded by point-two-three carats of round-brilliant diamond in fourteen-karat white gold. The halo holds the stone forward; the band closes flush beneath the cup setting.The best...

Garnet, set with two diamonds on either side.A six-by-six-millimetre square garnet at the centre, hand-selected at the source for the deep red saturation. Two round-brilliant diamonds run along each shoulder — point-zero-two carats in total — in fourteen-karat yellow gold, the band finished flush...

The signet, in onyx and diamond.A ten-by-fourteen-millimetre polished black onyx at the face, hand-selected for an even matte field with no banding. Point-zero-seven carats of round-brilliant diamond accent the shoulder in fourteen-karat white or yellow gold.Unmistakably Isaac Westman.

A band of forty-two pavé diamonds.Point-two-five carats total weight of round-brilliant diamond, set continuously around a fourteen-karat white gold band. Each stone is held flush with the metal; the surface reads as a single line of light around the finger, without break or gap.Elegantly...

A band, paved in diamond.Round-brilliant diamond, pavé-set across the band in fourteen-karat gold, each stone held flush with the metal. Total weight scales with the variant; the surface reads as a single continuous line of light around the finger.Elegantly modern. Forever classic.

A pear of blue sapphire, held in four prongs.A six-by-eight-millimetre pear-shaped blue sapphire at the centre, hand-selected for saturation, with point-three carats of round-brilliant diamond along the shoulders. Set in fourteen-karat white gold or platinum, finished to a single polished line.Heirlooms in the making.

Pearl, framed by crossed diamond bars.An eight-millimetre cultured freshwater pearl at the centre, chosen by hand at the source for luster and roundness. Two crossed bars run across the shoulders in point-zero-eight carats of round-brilliant diamond, set in fourteen-karat white gold and finished to...

Peridot, set with round-brilliant diamond.An eight-by-eight-millimetre peridot at the centre, hand-selected at the source for the olive-green saturation that defines the August birthstone. Point-one carats of round-brilliant diamond accent the shoulders in fourteen-karat white gold; the band closes flush around the stone.The best jewels...

Pink sapphire, held in a split band.An oval pink sapphire at the centre, hand-selected at the source, with point-three carats of round-brilliant diamond along a split fourteen-karat white gold band. The sapphire carries the colour; the diamonds carry the geometry.Heirlooms in the making.

A heart of pink sapphire, ringed in diamond.A five-millimetre heart-shaped pink sapphire at the centre, hand-selected for the rose saturation, framed by point-two carats of round-brilliant diamond in fourteen-karat white gold. The halo holds the stone forward; the band is finished to a single...

A heart of pink sapphire, set with diamond.A five-millimetre heart-shaped pink sapphire at the centre, with point-one-seven carats of diamond running along the shoulders in fourteen-karat white gold. The stone carries the colour, the diamonds frame it.The best jewels make the best gifts.

The solitaire, in platinum.A round-brilliant centre stone, held in four narrow prongs of platinum so the maximum of light reaches the stone. Centre stones at one carat and above carry GIA or IGI certification; the band sits flush against a wedding ring.Heirlooms in the...

Four rubies, set with three diamonds.Four round rubies and three round-brilliant diamonds — point-two-six carats in total — set along the face of a fourteen-karat white gold band. The rubies are hand-selected at the source for the deep red saturation; the diamonds carry the...