Sold for:
$3,375

FANCY COLOR DIAMOND PLATINUM COCKTAIL RING; Irradiated blue, green and yellow marquise cut diamonds, colored orange pear-shaped diamonds, with untreated marquise cut diamonds, split shank is tapered ribbons of colorless baguette cut diamonds. Lively and well made, diamonds approx. 7.75 cts. TW, ca. 1960. Size 6. 9.5 dwt. Note: Irradiation in nature produces color in diamonds. 1904 saw the first color enhancement by irradiation in a lab, stable, non-radioactive irradiated and heat-treated diamonds in a broad spectrum of intense colors were a novelty retailed by 1950.


Rago Auctions

Auctioneer:
Rago Auctions

Date:
2013-12-08

Archived auctions similar to Fancy color diamond platinum cocktail ring; irradiated blue, green and yellow marquise cut diamonds, colored orange pear-shaped diamonds, with untreated marquise cut diamonds, split shank is tapered r Down arrow


Sold for:
$8,540

FANCY COLOR DIAMOND AND SAPPHIRE CUFF. G. Petochi, Rome, ca. 1900-1940. 18k hinged cuff of bypass design with twisted wire borders platinum-set brownish-yellow fancy diamond, Read more…


Auctioneer:
Rago Auctions

Date:
2010-12-05


Sold for:
$5,795

FANCY COLOR DIAMOND AND SAPPHIRE RING G. Petochi, Rome, 1900-1940. Companion to preceeding lot. 18k bypass design with twisted wire border, platinum-set yellowish-brown OEC diamond, Read more…


Auctioneer:
Rago Auctions

Date:
2010-12-05


Sold for:
$5,036

Fancy Color Diamond and Diamond Clip, c. 1930s, set with circular and marquise-cut yellow and yellow-orange diamonds, approx. total wt. 1.50 cts., accented by diamond Read more…


Auctioneer:
Skinner

Date:
2010-03-16


Sold for:
$8,750

3.02 CTS. FANCY COLOR DIAMOND RING; GIA report #2155220364 describes natural fancy brownish yellow diamond weighing 3.02 cts., modified cushion cut, SI2, good polish, good Read more…


Auctioneer:
Rago Auctions

Date:
2013-12-08


Sold for:
$8,750

DIAMOND PLATINUM COCKTAIL BRACELET; Central lozenge shaped bosse of bypass design with principal RBC diamond, approx. .75 ct. joins flexible straps. Fine RBC, marquise cut Read more…


Auctioneer:
Rago Auctions

Date:
2014-12-07


Sold for:
$3,500

1.80CT EMERALD & FANCY COLOR DIAMOND NECKLACE, L 17":Italian 14kt yellow gold necklace, featuring a 1.80 carat pear shaped natural emerald pendant, with .20 carats Read more…


Auctioneer:
Dumouchelle Art Galleries

Date:
2014-03-14


Sold for:
$2,684

DIAMOND PLATINUM COCKTAIL RING ca. 1960 Oval bombe centers oval cut diamond, approx. .75 ct., and three tiers of marquise cut diamonds, approx. 2 cts. Read more…


Auctioneer:
Rago Auctions

Date:
2010-12-05


Sold for:
$4,000

2.18CT FANCY COLOR DIAMOND & SAPPHIRE FLUSH MOUNT RING, SIZE 7:14kt white gold lady's flush mount ring, featuring a 1.02 carat sapphire bezel set at Read more…


Auctioneer:
Dumouchelle Art Galleries

Date:
2014-10-18


Sold for:
$625

ART DECO DIAMOND PLATINUM COCKTAIL RING; Cruciform design with sapphire accents, diamonds approx. 1 cts. TW; 2.9 dwt. (4.5 gs.), size 5 1/2 Read more…


Auctioneer:
Rago Auctions

Date:
2012-04-22


Sold for:
$3,416

SOUTH SEA PEARL AND DIAMOND NECKLACE 18" strand of multi-hued spherical pearls, 14.5mm-10.5mm, ten gold and diamond rondelles and a colorless and fancy color diamond Read more…


Auctioneer:
Rago Auctions

Date:
2009-12-06