Antique and designer diamond and sapphire necklaces - price guide and values

Sapphire & Diamond Pendant Necklace and Earrings Set

A sapphire and diamond pendant necklace and pair of earrings, set with an oval cut sapphire of 1.90cts, surmounted by two round brilliant cut diamonds totalling 0.48cts, suspended from a fine snake chain, the earrings of conforming design, all in 18ct…

14ct 70 stone sapphire and diamond necklace, twelve graduating sapphire and diamond floret clusters on fine scroll curve links, 42.5 cm long

Sapphire and Diamond Garland Necklace with Pear Shaped Sapphires

Sapphire and diamond necklace, designed as a garland accented with round brilliant-cut diamonds and suspending two pear shaped sapphires, UK hallmarks, maker's mark indistinct, 18ct gold, weight 14.3gm, length 40.5 cm.

18ct Gold Sapphire & Diamond Necklace with 6ct Sapphires

An 18ct gold sapphire and diamond necklace, cable link chain collet set with 3 round brilliant cut diamonds totalling approx. 0.60ct, and 3 trillion, 3 pear and 5 oval cut green blue sapphires totalling approx. 6ct to a bolt ring clasp, length 60 cm, wt.…

Egyptian Deity Multi-Gem Pendant Necklace by Suzan Kelley

A multi-gem pendent necklace, by Suzan Kelley, the heart-shaped pink toumaline cabochon surmounted by a sculpted gold Egyptian deity, the wings decorated by circular-shaped pink and blue sapphires, emeralds and round brilliant-cut diamonds, to the fine…

Sapphire, Diamond, and Pearl Necklace with Openwork Clasp

Sapphire, diamond and cultured pearl necklace, the double row of cream coloured cultured pearls with an openwork clasp set with oval and circular-shaped blue sapphires and brilliant-cut diamonds, mounted in gold, shortest length 39 cm.

Multi-Strand Seed Pearl Necklace with Dragon Head Clasp

Beautiful seed pearl necklace, multi strand seed pearl necklace with unusual 14ct yellow gold dragon head clasp with ruby eyes inset diamonds, inset sapphires and emeralds

18ct Gold Sapphire & Diamond Necklace with 4ct Sapphires

An 18ct gold sapphire and diamond necklace, cable link chain collet set with 11 round brilliant cut diamonds totalling approx. 0.28ct, and 20 pear, oval, baguette and carre cut blue sapphires totalling approx. 4ct to bolt ring clasp, length 82 cm, wt. 4…

18ct Gold Sapphire & Diamond Cruciform Pendant Necklace

An 18ct gold sapphire and diamond cruciform pendant necklace, cross centring an approx. 0.80ct emerald cut blue sapphire stems set with 16 round brilliant cut diamonds totalling approx. 1.04ct, Si - P1, size 38 x 24 mm on a 2 tone bead and dumbbell link…

Sapphire, Diamond and Pearl Necklace in 14ct White Gold

14ct white gold, sapphire, diamond and pearl necklace, composed of a double strand of round cultured pearls of cream hues measuring approximately 7.34 mm, completed by a clasp set with eight circular-cut sapphires and round brilliant-cut diamonds weighing…

Sapphire and Diamond White Gold Necklace

An 18ct white gold sapphire & diamond necklace, one oval cabochon sapphire, 16.5 x 14.5 mm, one baguette diamond, 0.20ct mounted in a white gold frame with a 18ct white golf foxtail chain, length 40 cm Wt 10.3grams

Gem set gold heart and star charm necklace

A quality gem set gold heart and star set charm necklace. 18ct yellow gold, of Italian manufacture, presented as a quality modern elongated double link necklace of polished gold, suspending a selection of thirteen alternating star and heart gold 'charms',…

Sapphire and Diamond Bow Pendant Necklace

A sapphire and diamond bow pendant necklace, invisibly set with faceted blue sapphires, with seven round brilliant cut diamonds to the knot, mounted in 18ct white gold to a white gold fox link chain, total length 455 mm.

Sapphire & Diamond Floral Cluster Necklace

A 14ct white gold sapphire and diamond necklace; faceted ball chain to a bolt ring clasp, with 45 mm long centrepiece featuring a floral cluster set with a round brilliant cut diamond of approx. 0.15ct to surround of 9 navette cut blue sapphires to…

Sapphire and Diamond Pendant Necklace in 18ct White Gold

An 18ct white gold sapphire and diamond pendant necklace; 11.3 x 9.5 mm blue sapphire (treated) to surrounded and bale set with 58 round brilliant cut diamonds on an 18ct chain. Wt. 6.3g.

Sapphire clasp necklace with 120 pearls

Single strand cultured pearl necklace, uniform 120 7 mm pearls on 14ct sapphire and diamond floral burst clasp

Sapphire and Diamond Necklace with 11 Stones

14K sapphire & diamond necklace. 11 sapphires & 7 small diamonds. Wt. 8.75g (overall)

Sapphire and Diamond Necklace

A sapphire and diamond necklace, the front section set with sixteen marquise-shaped blue sapphires and twelve brilliant cut diamonds, hung on a woven flat link necklace. 14ct yellow gold. Weight 12.02 grams. Length 41 cm.

Salvini Butterfly Pendant with Yellow Sapphire and Diamond

18ct gold, yellow sapphire and diamond pendant necklace, Salvini, modelled as a butterfly, pave-set with yellow sapphires, completed by a fine ropetwist chain, the lobster clasp accented with a collet-set brilliant-cut diamond, length approximately 520 mm…

Sapphire and Diamond Pendant Necklace

A diamond and sapphire pendant necklace, cluster pendant centring a 1.49ct step cut blue sapphire to surround and bale set with 33 round brilliant cut diamonds on a snake chain in 18ct white gold, length 45 cm.

18ct Sapphire & Diamond Pendant Necklace with Herringbone Chain

An 18ct white gold sapphire and diamond pendant necklace, centring a dark blue sapphire to surround and bale set with 30 round brilliant cut diamond to herringbone chain, length 50 cm.

Platinum Diamond and Sapphire Necklace with Pearl Drop

A Belle Epoque Revival platinum diamond and sapphire necklace, the centre with curving bars highlighted with a single oval facet cut sapphire, diamonds and single pearl drop.

Sapphire and Diamond Clasp Pearl Necklace

A pearl necklace with sapphire and diamond clasp, the graduating cultured pearl necklace of cream hue, measuring 8.10 - 10.25 mm, to a geometric clasp set with baguette sapphires and round brilliant cut diamonds, mounted in 14ct white gold, total length…

Diamond and Sapphire Lady Pendant Necklace

18ct gold necklace with a pendant depicting a lady with flowers, set with diamonds and sapphire to pendant, hallmarked London 750 G&Co 19.5g. 1x marquise cut sapphire. 19x graduating round brilliant cut diamonds

Sapphire & Diamond Necklace, 14ct Gold, Valued

Gold, sapphire and diamond necklace. Showing a central 7.8 mm x 5.8 mm oval cut blue sapphire with 54x round brilliant cut diamond surround 0.01ct each, 0.54ct total weight. Necklace weight 8 grams, 45 cm, chain Length. Chain and setting marked 14ct and…

18ct Gold Diamond & Sapphire Choker with Synthetic Ruby

Diamond and sapphire set 18ct yellow gold choker also set with a synthetic ruby. Marked 18ct to box clasp. Approx 21x round brilliant cut diamonds 0.105ct H colour, Si clarity, 5 mm x 4 mm even deep blue colour sapphire. Necklace length 41 cm, weight 22…

Sapphire & Diamond Necklace from Judith Hoyle Estate

Diamond and sapphire necklace, 18ct white gold, featuring an estimated 0.72ct oval cut sapphire, sixteen grain set diamonds, and seed pearl drop, 5.70 grams. Provenance: The Estate of Judith Hoyle, Newcastle, NSW

14ct Sapphire & Diamond Necklace with 32 Stones

14ct 32 stone sapphire & diamond necklace, central oval cluster head with four claw set dark blue mixed cut sapphire approx 2.70ct TSW, set with round two claw & double row of two claw set round brilliant cut diamonds, approx 0.50cts TDW on flat…

Biwa Pearl Necklace with Sapphire and Diamond Clasp

Four strand freshwater Biwa pearl necklace with stunning star shaped sapphire and diamond clasp

18ct Gold Sapphire & Diamond Necklace with 9ct Chain

18ct gold & palladium sapphire & diamond necklace contains 10 round blue sapphires (approx 1ct total) and 11 diamonds (approx weight 0.85ct) with a 9ct gold box link chain. Total weight approx 9.2 grams

Triple Pearl Necklace with Sapphire & Diamond Clasp

Triple row pearl necklace with gold, diamond & sapphire clasp, 5.5 to 6 mm round to slightly off round cultured pearl triple row necklace with 14ct clasp set with 15 sapphires & 12 diamonds, sapphires approx.1.08ct diamond weight around 0.48ct. Length 49…

Three Strand Pearl Necklace with Gemstone Clasp

18ct white gold, three strand pearl necklace, (pearls approx 5 mm in diameter ) with an 18ct white gold, sapphire, ruby and diamond clasp, in original Bruce and Walsh box

Art Deco Seed Pearl Necklace with Sapphire Clasp

A seed pearl necklace comprising of 9 fine strands of natural seed pearls, with geometric Art Deco design clasp set with 3 small blue square cut sapphires and 9 small single cut diamonds. White gold.

18ct Gold Amethyst, Pink Sapphire & Diamond Necklace

An 18ct yellow gold amethyst, pink star sapphire & diamond necklace, two emerald cut amethysts, 10.5 x 9 mm & 9 x 7 mm with four oval pink star sapphires, 5 x 4 mm & three round brilliant cut diamonds, mounted in yellow gold bezels with an oval trace link…

Gemstone Gold Necklet with Swagged Marquise Cut Stones

A ruby, sapphire, emerald and diamond set gold necklet, 14ct yellow gold, made as a smooth, interlocking linked gold necklace centrally detailed by a swagged arrangement of marquise cut stones comprising a ruby, two sapphires and two emeralds, each…

18ct Two-Tone Gold Target Pendant with Diamonds and Sapphires

An 18ct two tone gold gemset pendant necklace, target pendant set with 8 round brilliant cut diamonds and coloured sapphires.

Egyptian Revival Necklace with Diamonds and Gemstones

A gilt metal Egyptian revival necklace, having graduated semi-circular and arrow shaped elongated drops, set with diamonds (some missing,) sapphires and synthetic rubies. This style of Art Deco jewellery is known as Egyptian revival. It was popular during…

Sapphire and Diamond Pendant on White Gold Necklace

A 10ct white gold sapphire and diamond pendant necklace, pendant and surmount set with blue sapphires and a single cut diamond.

Sapphire and Diamond Pendant with 22 Drops

A sapphire and diamond pendant necklace with twenty-two drop-shape sapphires and eighty-one small diamond; 18ct gold, with long and short filed curb link chain and bolt-ring clasp. Wt 14.8g

Multi-Gem Tassel Necklace with Diamond Accents

Multi gem, gold and diamond tassle necklace, sapphire, emerald, ruby, emerald faceted roundel necklace with a seven hanging tassle pendant on a 9ct white gold fluted setting with twelve round brilliant cut diamonds punch. Marked 375 to the clasp. Approx…

Diamond and Sapphire Pendant with Valuation Certificate

18ct yellow gold diamond & sapphire set necklace pendant. Set with 10 sapphires (total approx.1.00ct) & 11 diamonds (total approx. 0.85ct); on 9ct yellow gold link chain. Copy of valuation certificate available.

Sapphire and Diamond Clasp Cultured Pearl Necklace

A cultured pearl necklace with sapphire and diamond clasp, 61 uniform pearls (7.5 mm) strung and knotted; the clasp with two sapphires and 21 diamonds in 14ct gold

Sapphire and Diamond Cluster Pendant in White Gold

A sapphire and diamond cluster pendant necklace, set in 9ct white gold with a dark blue oval sapphire and single cut diamonds to 9ct yellow gold bale and chain.

Golden Mabe Pearl & Sapphire Necklace

A multi strand pearl necklace. One wide multi strand necklace of small fresh water cream pearls, fitted with large 14ct yellow gold round case, centrally set with a single round mabe pearl of fine quality, framed by spaced claw set sapphires and brilliant…