Ring with diamond, Early 20th Century

ANTIQUE BLACK OPAL AND DIAMOND RING, EARLY 20TH CENTURY mounted in yellow gold, claw-set with an oval black opal measuring 14.8 x 10.5mm,and weighing approximately 3.36 caarts, within a border of circ

A diamond ring, early 20th century, set with a drop-cut diamond weighing approximately 2.40 carats, with vari-cut diamond foliate sides and surround, size 11/51, weight 7 grams.

AN ANTIQUE PEARL AND DIAMOND RING, EARLY 20TH CENTURY in yellow gold, the openwork face set with an old cut diamond and two pearls in a border of rose cut diamonds, further rose cut diamonds set to th

ANTIQUE TURQUOISE AND DIAMOND RING, EARLY 20TH CENTURY claw-set with a cabochon turquoise, within a border of cushion-shaped diamonds, size Q / 8, unmarked, estimated total diamond weight 0.60-0.80 ca

EDWARDIAN PLATINUM AND DIAMOND RINGEarly 20th CenturyFull-cut diamonds, approx. 5.0mm x 3.6mm and approx. 4.6mm x 3.0mm, flanked by four small diamonds. Maker’s mark “SRS”. Size 3&#1

AN ANTIQUE OPAL AND DIAMOND RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with three cabochon opals, accented by round cut diamonds, stamped 18CT & PT, size L / 5.75, 2.7g.

SOLITAIRE DIAMOND RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an old cut diamond, between geometric shoulders, stamped 18ct Plat, size K / 5.25, 2.2g.

ANTIQUE NATURAL PEARL AND DIAMOND RING, EARLY 20TH CENTURY set with a bouton-shaped natural pearl measuring 7.7-8.0 x 6mm, to a band set to the front with circular-cut diamonds, size V1/2 / 10.75, sta

Deakin & Francis 18Kt Yellow Gold & Diamond Ring. With early 20th century Birmingham hallmarks. Size - 8. Weight - 3.7 dwt.

A FINE ANTIQUE DIAMOND DRESS RING, EARLY 20TH CENTURY in yellow gold and platinum, the scrolling face set with old cut diamonds accented by rose cut diamonds, no assay marks, size J / 4.5, 3.6g.

AN EMERALD AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in yellow and silver, set with a step cut emerald of 1.14 carats, in a border of single cut diamonds, stamped 18CT, size M / 6, 3.6g.

A late 19th / early 20th century diamond ring set with five old-cut diamonds of approximately 1.40 carats combined, in unmarked yellow gold mount, size N 1/2, 3.5 grams.

A SAPPHIRE AND DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold, set with a trio of graduated cushion cut blue sapphires, accented by pairs of old cut diamonds, stamped 18ct, size O / 7.25,

A late 19th / early 20th century diamond ring set with five old-cut diamonds of approximately 1.40 carats combined, in unmarked yellow gold mount, size N 1/2, 3.5 grams.

A SOLITAIRE DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an old cut diamond of 0.51 carats within a tapering band, stamped 18ct Plat, size K / 5.25, 2.4g.

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut blue sapphire within a border of single cut diamonds, maker's mark SH&Co, st

Art Deco Sapphire & Diamond Ring in Platinum , Early 20th century, platinum, American. Art Deco ring set with .60cttw diamonds I-G color and SI2-SI1 clarity and .50 cttw blue sapphires. Hallmark: Plat

Art Deco Diamond Filigree Ring, Early 20th century, Art Deco ring in platinum over 18k set with .17cttw diamonds (approximately H color and SI1 clarity). Hallmarked with Austrian assay mark for 14k. W

A diamond engagement ring. Early 20th century. Set in platinum. Approx. 3/4 carat t.w.Size 6.5

AN ANTIQUE SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut sapphire within a halo of round cut diamonds, stamped 18ct Plat, size N / 6.5, 2

AN ART DECO RUBY AND DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, the rectangular face set with a step cut ruby accented by single cut diamonds, stamped 18ct Plat, size M /

FILIGREE STYLE, WHITE GOLD, OLD MINE CUT DIAMONDS. EARLY 20TH CENTURY RING. SIZE NINE. 4.4 GRAMS. ESTIMATE: $700-$1200

An early 20th century diamond single-stone ring The old brilliant-cut diamond, weighing 4.03 carats, between tapered single-cut diamond three-stone shoulders, French assay marks(Ring size: N)

AN EARLY 20TH CENTURY DIAMOND CLUSTER RING Set with old brilliant and cushion-shaped diamonds forming a navette-shaped cluster, in closed back setting, scrolling shoulders detailing, mounted in platin