A diamond ring, the central brilliant cut diamond,

A DIAMOND SINGLE-STONE RING, the central brilliant-cut diamond measuring approx. 6.87x6.85 with brilliant-cut diamond shoulders within millegrain setting, mounted in 18K gold, ring size M

BROWNS: DIAMOND THREE-STONE RING The central brilliant-cut diamond weighing 0.51 carat, set between two similarly cut diamonds weighing a total of 0.52 carat, signed Browns, ring size approx. J½

Fred Joaillier platinum & 1.77 ct. (GIA) diamond ring featuring a central oval brilliant cut diamond, 1.77 cts., E color, VVS2 clarity, flanked by tapered baguette diamonds in a platinum mount, with a

DIAMOND THREE-STONE RING The central old brilliant-cut diamond weighing 2.22 carats, between two similarly-cut diamonds weighing 1.20 carats and 0.97 carat, ring size approx. L

Platinum and Diamond Ring, central prong set round brilliant cut diamond, wt. approx. 1.19 cts., approx. 6.70-6.58 x 4.20 mm, K color, I-1 clarity; stylized asymmetric bezel with 42 mixed cut diamonds

A DIAMOND SINGLE-STONE RING, BY BULGARI The central brilliant-cut diamond weighing 0.79ct within a four-claw setting, to a gallery pavé-set with similarly-cut diamonds, mounted in platinum, signe

Fourteen-Karat Yellow Gold and Diamond Ring, mounted with a central round brilliant-cut diamond, with an approximate weight of 2.78 carats, approximate color H and clarity SI2, in a mounting with a fr

DIAMOND SOLITAIRE RING, set with a central brilliant cut diamond of approx. 0.70 ct. The head, shoulders and part shank of relief scrolling design. Size L. 10.6 grams.

FRED PARIS, AN ONYX AND DIAMOND DRESS RINGThe central diagonal row of brilliant cut diamonds between shaped polished onyx panels, approximately 0.20 carats total, the shank signed Fred Paris, with Fre

Art Deco-Style Platinum, Diamond and Ruby Ring , central bezel set round brilliant cut diamond, wt. approx. 0.94 ct, G color, SI-2 to I-1 clarity, 6.30 x 6.30 x 3.90 mm; framework bezel and shoulders

RUBY AND DIAMOND HORSE-SHOE RING, CIRCA 1890 The central old brilliant-cut diamond within a similarly-cut diamond and circular-cut ruby horse-shoe surround, with trifurcated shoulders, diamonds approx

Three marked 14 karat yellow gold men's dress rings, all featuring diamonds.One ring set with a central round brilliant cut diamond. Central diamond is about 0.2 ct. Size: 7.75. Marked "(illeg.) I I 1

18K white gold heart shoulder diamond ring, channel set diamond hearts flanking central rectangular brilliant cut diamond (approx. 1 ct), marked size: 5.25 total weight: 4.8 grams Provenance: Proper

AN 18K WHITE GOLD, DIAMOND VINTAGE FILIGREE RING, the 1.5 carat central brilliant cut diamond flanked by two cascading bead set diamonds, raised on filigree structure. Total approximate diamond weigh

Ladies 14kt yellow and white gold diamond engagement ring, comprising: (1) central prong mounted round brilliant cut diamond, 0.63ct, clarity: SI1, color: H-I; presented in a white gold band with wedd

Men's 10 karat yellow gold, ruby, and diamond ring. Central square cut ruby with 4 round brilliant cut diamonds. Ring marked "10 K" and "F' in a diamond shaped cartouche. Possibly Fellencer & Son, A.C

18K white gold and diamond ring, central oval brilliant cuts, 1.14 CT, 12.04 x 6.34 x 2.16 mm, I colour vs 2 clarity, with GIA report, .84 CTW of smallest round brilliants, approximately 6 grams TW, s

With central brilliant-cut diamonds, VS2, H-I colour, 0.20ct approx. With further 2x brilliant-cut diamonds, totalling 0.08ct approx VS2 H-I. Birmingham 1911 hallmark. 2.8 grams, 17mm.

Diamond Ring platinum, the ring mounted with a central round brilliant-cut diamond weighing approximately 1.40 carats, approximate color I and clarity I2, accented by baguette- and round brilliant-cut

Oscar Friedman 18 kt. Yellow Gold, Emerald and Diamond Ring, central bezel-set octagonal step-cut emerald, wt. approx. 2.23 cts., 8.70 x 6.30 mm; mounted with 44 round brilliant cut diamonds, total wt

An Art Deco diamond, turquoise and black enamel dress ring, central round old brilliant cut diamond approx 0.21ct, upon a black enamelled principle ground, above four stone turquoise inset shoulders,

Contemporary Italian 18K yellow gold diamond ring showcasing a rectangular central medallion surrounded by brilliant cut pave diamonds and completed with a square tapered band. Approx. diamond weight

Gentleman's Three-Stone Diamond Ring 14k yellow gold, the ring mounted with a central round brilliant-cut diamond weighing approximately 1.00 carat, flanked by two round brilliant-cut diamonds weighi

Exquisite 14 karat white gold engagement ring with a central round brilliant cut diamond, approximately 2.8 ct, J-K Color, and SI+ clarity with cloud and feather inclusions around girdle, one small da