Riviére brilliant-cut diamond r

center set with one round brilliant cut diamond [R-T/I3], approximately 0.75 carats, and accented with 18 full-cut round diamonds [K-M/SI], total approximate weight 0.60 carats; size 6-½, weigh

Estimated total weight 0.26 ct., from which hangs an oval pearl, calibrated in 10mm..

centering one round brilliant cut diamond [P-R-Greyish-Brown/I2] weighing approximately 11.50 carats; and 62 full cut diamonds [H-I/SI] weighing approximately 0.95 carats total; 7.7 grams; Note: centr

centering one round brilliant cut diamond [P-Q-R/I1] weighing approximately 2.43 carats; and 67 full cut diamonds [I-J/VS] weighing approximately 0.17 carats total 7.5 grams Note: with medium to stron

Ladies 9K Gold, Amethyst & Diamond dress ring, stamped 375 . Central square 7mm cushion cut Amethyst with six brilliant-cut tapered shoulder diamonds, size R from Prouds in original box, RRP $500 and

DIAMOND RIVIERE NECKLACE Containing 97 round brilliant cut diamonds weighing approximately 17.90 carats total. Mounted in yellow gold. 17 inches long. Gross weight: 17.95 dwt.

DIAMOND RIVIERE NECKLACE Containing 104 round brilliant cut diamonds weighing approximately 16.65 carats total. Mounted in white gold. 18 inches long. Stamp: MIR-K18. Gross weight: 16.80 dwt.

DIAMOND RIVIÈRE NECKLACE Containing 132 round brilliant cut diamonds weighing approximately 15.00-16.00 carats total, the clasp containing one marquise cut and six tapered baguette cut diamonds,

An 18 Karat White Gold and Diamond Riviere Necklace, containing 94 round brilliant cut diamonds weighing approximately 10.00 carats total. Stamp: D10029 K18. 17.90 dwts. Estimate $ 9,000-11,000 Diamon

An 18 Karat White Gold and Diamond Riviere Necklace, containing 94 round brilliant cut diamonds weighing approximately 10.00 carats total. Stamp: D10035 K18. 17.95 dwts. Estimate $9,000-11,000

DIAMOND RIVIERE NECKLACE Containing 127 round brilliant cut diamonds weighing approximately 10.00-11.00 carats total. Mounted in yellow gold. 19 inches long. Stamp: A+P 18K. Gross weight: 20.45 dwt.

A COGNAC AND WHITE DIAMOND CROSSOVER RING in 9ct white gold, set with oval and round brilliant cut cognac diamonds and round brilliant cut white diamonds, British hallmarks, size R / 8, 4.5g.

A DIAMOND FULL ETERNITY RING in 18ct white gold, set all around with a row of round brilliant cut diamonds, obscured British hallmarks, size R / 8.5, 2.2g.

A DIAMOND 'N' INITIAL RING the ring face with an 'N' initial, set with a row of round brilliant cut diamonds, no assay marks, size R / 8.5, 8.1g.

ROBERTO COIN - an 18ct gold diamond band ring. The pave-set brilliant-cut diamond panel, with plain band. Signed R Coin. Estimated total diamond weight 2.95ct. Hallmark for Birmingham, 2010. Ring size

An opal and diamond cluster ring claw-set with an oval opal cabochon, in a single border of ten round brilliant-cut diamonds, indistinctly marked(Ring size: Q/R)

Estimated total weight 2.40 ct. and oval-cut rubies..

Ladies platinum and GIA certified diamond ring, centered by (1) round brilliant cut diamond, 7.10ct, clarity: VS1, color: Q-R, GIA report number: 1176823996; (2) tapered baguette shaped diamonds, appr

ROBERTO COIN - a pair of diamond earrings. Each designed as pave-set brilliant-cut diamond panel, with hinged back fittings. Signed R Coin. Length 1.9cms. Weight 11.4gms. Overall condition fair to goo

Two diamond rings, the first with a trio of brilliant cut diamonds in a triangular setting, finger size R; together with a single stone diamond ring, the diamond estimated to weigh 0.55 carats, finger

MOUNTED WITH A 13X8 MM PEAR SHAPE DEEP PURPLE GENUINE AMETHYST, QUALITY (AAA) SURROUNDED BY 16X2 MM ROUND BRILLIANT CUT DIAMONDS WEIGHING .03CT EACH. TOTAL DIAMOND WEIGHT 1/2. CLARITY VS2SI1, COLOR I/

One lady's Cartier "Riviere" graduated diamond necklace made of platinum. Piece is set with 99 round brilliant cut diamonds, all prong set. Piece measures 15 3/4" long. Piece is signed "Cartier" with

View a video of this lot here: https://youtu.be/MUhH5fPs4kYCrafted in 18K white gold; set with round brilliant-cut diamonds, weighing a total of approximately 25.90 carats, most with G-H color and SI-

R. STONE, YELLOW GOLD AND DIAMOND CONVERTIBLE NECKLACE Consisting of textured oval links and removable pendant containing round brilliant cut diamonds weighing approximately 6.50 carats total, convert