One platinum on 18K yellow gold and diamond Edwardian brooch. The brooch consists of a pierced top set with Old European cut diamonds and melee rose cut diamonds in a geometric pattern. The twelve Old European diamonds have a total weight of 1.20 carats. The clarity is SI1 and the color is H-I. The thirty nine rose cut diamonds have a total weight of .50 carat. The brooch has a hinged straight back with side clutch closure. The piece measures 2" long by 7/8" wide. The condition is excellent...

A superb pair of vintage, mid-century platinum earrings with green tourmalines and diamonds. The large rectangular step cut tourmalines contrast beautifully with the surrounding ribbons of diamonds and the whiteness of the platinum settings. The pairing of tourmalines and diamonds isn’t terribly common and gives these earrings a special appeal...

A beautifully decorated platinum and diamond filigree ring from the 1920’s centered by two old-mine diamonds and further enhanced by another 28 various size old-mine diamonds. The approximate total weight of all 30 diamonds is 1.00Ct.The ring is size 5 3/4, but it can easily be sized if needed.

Take her breath away with this pristine platinum and diamond engagement ring. Dating from the 1920’s and showing characteristic Deco influences from the prongs to the shank, this stunner features a 1.02 carat round center stone. The exquisite diamond is EGL certified as H color and VS2 clarity. Eight single-cut diamonds of various sizes accentuate the flourishes on either side of the stone, lending to the 1.20 carat total weight.The ring is a size 6 1/2 and it can easily be sized.

This is an elegant platinum and diamond ring centered by an approximately 0.23 carat brilliant cut diamond that has I color and SI1 clarity. The diamond is set in a decorative buttercup style setting with six prongs. The ring dates back to the 1940s and would make a great friendship or engagement ring for a person who appreciates fine old jewelry.The ring is a size 5 1/2 and it can easily be sized.

An iconic "Lentils" necklace crafted in hematite by Angela Cummings for Tiffany & Co. Cummings began designing with lentil-shaped beads in late 1980 and it became one of her hallmarks. This hematite necklace is punctuated with a single platinum lentil pave-set with round brilliant diamonds (G/VS1). The brilliance of the diamonds is particularly nice against the dark color of the hematite. The clasp is signed "Cummings", "T&Co." and "IridPlat".

Origin: America, ca. 1985...

An exquisite Art Deco platinum filigree ring set with a 1.14 carat old European cut diamond surrounded by caliber-cut onyx and coral in a sort of Moorish design. The diamond is graded as H color and SI1 clarity. All the stones are set in millgrained bezel settings. The surrounded coral has very saturated, even coloring that contrasts beautifully with the onyx and the sparkle of the diamond. Strong color contrast is especially associated with Art Deco jewels...

A superb early Edwardian “style guirlande” platinum, gold, diamond, opal and pearl necklace. The fine platinum chain suspends a platinum and gold pendant centering a beautiful oval opal surrounded by an ornate swagged garland of diamonds punctuated with creamy natural pearls. The opal has strong and even play-of-color with strong flashes of bright green, a bit of blue and pale orange...

An Art Deco platinum diamond solitaire ring circa 1920s 1930. This elegant diamond is a European brilliant cut, 0.90 carat, VVS-2 clarity, L-M colour. The ring is a size 7-1/2. It is stamped 10% IRID. PLAT. to indicate that 10 per cent of the metal is iridium. This is a great engagement ring choice for those who like clean classic design, and it goes well with any bridal style...

This is a 14k and silver Edwardian period oval shaped pearl and diamond pendant. The pendant is peg set with six slightly baroque river pearls measuring 5.50mm - 5.70mm in diameter. There are twelve rose cut diamonds prong set in between the pearls. The total diamond weight is .48 carats. The pendant has the original bail and is bead set with three rose cut diamonds. It measures 1.5" by 1". The pendant is in excellent condition and is circa 1901 - 1914...

A fabulous Art Deco platinum brooch in the form of a carved hardstone Scottish Terrier sitting atop a diamond-encrusted platform surrounded by a leash as a sort of diamond-set halo. The dog is finely carved and enhanced with a matte finish...

This is a Platinum Diamond Engagement Ring with a 2.42 Carat center diamond. Diamond specifics continued: SI1 clarity, LM color, european cut. .... must see in peron to appreciate

This is a BEAUTIFUL DIAMOND ENGAGEMENT RING with a 1.50 Carat European Cut Center DIAMOND. Note the Fine PLATINUM FILIGREE Setting. Date this Engagement RING ca. 1925- 1935. Ring size is a 5 1/2. More details posted soon ... from a Florida Estate. This is a Fantastic PLATINUM DIAMOND ART DECO ENGAGEMENT RING in Excellent Condition

Stunning platinum and diamond earrings in the "stile guirland" or "garland style" developed in Paris by Cartier, but first made fashionable by Queen Alexandra of England. Each earring is composed of a floral motif surmount, suspending a bow, suspending a wreath circled about another floral motif, suspending a teardrop. Each earring is fully articulated, so that all the parts move independently with the slightest movement. Each earring contains 51 round brilliant-cut diamonds of very fine colo...

A beautiful lady’s ring in the pierced dome style. The dome is set with melee round diamonds surrounding the center old European cut diamond. The center diamond’s diameter is 7mm with clarity VS1 and color H-I. Weight is 1.19 carat. There are 18 single cut diamonds with clarity VS1-VS2 and color G-H weighing 0.50 carat. Total weight is 4.2 grams. The ring shank is marked “Platinum and 1373” with engraved initials AJH. Circa 1910. Ring size 6 ½. The ring is in excellent condition.

Turn heads with three sparkling old mine diamonds set in this 1920’s filigree pin and pendant executed in platinum and 14 Kt white gold. The three stones weigh in at approximately 1.10 carats total and are set in platinum atop intricate filigree work full of knots, braids, and other flourishes. As is visible in the thumbnail photo, the bale may be folded down when the item is worn as a pin, either horizontally or vertically, making it symmetrical. Conversely, as in the photo above, the bale ...

Circa 1935, this late Art Deco watch is delicately crafted of platinum and diamonds. The band is made by Kreisler out of stainless steel and is marked as such on the clasp. The watch face measures approximately 1 3/8" long and 3/8" wide. It has approximately .50 carats total weight of baguette and rose cut diamonds on the front. The back of the watch is completely unmarked but has tested as platinum. The watch winds and keeps accurate time, but we do not warranty old watches. The band has two sa...

An elegant Art Deco ring in platinum set with diamonds, sapphires and a 7-mm pearl. The octagonal face is bordered with sixteen single-cut diamonds (H/SI2) enclosing a border of calibre-cut sapphires around the center pearl. The pearl has excellent luster and overtones. The inside of the shank is marked "10% Irid Platinum".

Origin: America, ca 1920

Condition: excellent, the pearl likely replaced a center diamond

Dimensions: crown 1/2" x 1/2"

Finger Size: 4-1/2

Weight: 6.0 grams

Ap...

Your dream could be fulfilled with this glamorous 1920-s treasure. The approximately 1.70 Ct old-mine diamond with K color and VS2 clarity is set in a beautifully engraved openwork platinum setting. The diamond was graded by our in-house gemologist, and it is not certified by a gem lab. It is rare indeed, to find a period piece like this in such perfect condition. The ring is a size 6 ½ and it can easily be sized.

This is a Platinum Diamonds Eternity Band, 1.50 Carats Total Diamond Weight. This Anniversary or Eternity has 24 Full Cut Diamonds, SI Clarity, and GH Color. The Ring Size is 6 1/4. Unmarked; however tested and guaranteed Platinum. Ca. third 1/4 of the 20th Century. One of Many Platinum Diamond Jewelry pieces at our Antiques & Estate Jewelry Shop: Jantiques 10429 Fawcett St; Kensington, MD. 20895. jpgs provide more info

An exquisitely made antique platinum diamond and ruby ring that is centered by an 8 X 6 mm oval cabochon natural ruby which has the approximate weight of 1.0 Ct. The center stone is surrounded by twelve old-mine diamonds with the approximate total weight of 0.60 Ct. The top of the ring measures 13 X 11 mm.

This is a Fantastic Art Deco Platinum and Diamonds Brooch. Designed as a Duette the Two Sections contain one hundred twenty Diamonds. Approximate Diamond weight is 3.5 Carats. From a well-known Washington D.C. area Estate.........Hard to Find

Ca 1920 A stunning platinum and pearl ring with millegrain setting. There are twelve diamonds with a total carat weight of approximately 1.25 (ctw). The cream-colored cultured pearl measures 9mm. There is also a small amount of glue residue at the base of the pearl and very light wear on the nacre. Tests 950 platinum. Size 4.5 ~ Weight: 4 grams.

This is a Retro Era Platinum Circle & Bow Brooch. Set with one marquise diamond weighing approximately .40 carats, twenty square rectangular baguette diamonds weighing approximately .70 carats and forty-six graduated round brilliant-cut diamonds weighing approximately 2.90 carats. Total Diamond Weight is approximately 4 Carats. FG Color, VS Diamonds. Ca. 1950

A stunning Art Deco platinum ring featuring an antique cushion cut 9.03-carat Ceylon sapphire flanked on either side by three baguette diamonds arranged in a stepped pattern. The sapphire is graded on the GIA scale as vB5/4 (medium tone, moderate-strong saturation, violetish blue color), with eye-clean clarity and excellent cut. The stone's internal characteristics suggest Ceylon as the most likely origin. The overall look is a lovely cornflower blue with a tinge of violet mixed in. The ston...

Natural emerald oval cabochon weighing approximately 0.40 ct surrounded by beautiful platinum openwork and four diamonds weighing approximately 0.20 cttw. The ring is a size 6 and the overall weight is 3.1 grams. It is in good condition. It is unmarked but has tested as platinum. Circa 1910.

An exquisite platinum and diamond brooch in the form of a turtle by Tiffany & Co. In the 1990’s, Tiffany created a small line of nature-themed jewels loosely based on antique pieces in its design archives. The turtle pin was one of the most luxurious pieces in the series. The domed back is pave-set with 90 2.5-point round brilliant cut diamonds and the legs and head are set with additional 28 1.5-point diamonds. The eyes are collet-set blue sapphires. The back has a pendant hook, so it ca...

Over a carat and a half of old cut diamonds surrounding a 2.20 carat natural blue sapphire. All set in a platinum on 14k gold setting. There is a wired frame of tiny seed pearls surrounding the whole thing. It is completely unmarked but all aspects have tested as such. The two largest diamonds measure approximately .40 cts each. On the GIA grading scale they grade at SI clarity and G color. The rest of the diamonds are well matched and complementary. The entire piece is in great condition an...

Sixteen large old mine cut diamonds set in a heavy platinum setting. The diamonds weigh approximately 3 carats total weight, and grade at VS-SI in clarity and H-J in color. The pin-back is 18k yellow gold and is stamped as such. The brooch measures 1.75" in length and approximately .75" wide. It is in excellent condition and weighs 7.7 grams.

This Platinum and Sapphire Eternity Band size 5, with Five French~Cut Sapphires Alternating with 3 Round Diamonds. This pattern repeats all the way around the Anniversary Band. Other similar Platinum Bands available at our store

An exquisite Art Deco platinum pendant in the form of a rose set with old mine cut, old European cut, single cut and pear cut diamonds. The design is delicately worked in a sort of stencil effect, the negative spaces between diamond-set areas appearing as the veins of leaves or the deeper recesses of the rose blossom. The center of the rose is set with a .96-ct pear shaped diamond, H/VVS2. The smaller diamonds are well-matched in the H range SI clarity. A diamond-set leaf-shaped bail complet...

A very fine Art Nouveau pendant formed from an exceptionally large natural freshwater pearl mounted in platinum and gold and set with diamonds. The floral platinum mounting features a .15 carat old European diamond and nine single-cut diamonds. The bail is shaped as a clover and is set with three additional diamonds. The pearl has fine luster with rose and green orient. Tested and guaranteed platinum and 14K gold. The contemporary chain is 14K white gold.

• Origin: America, ca. 1910

Anyone who appreciates antique jewelry would love this fabulous platinum and diamond ring from the 1920-s. The non certified center stone is an approximately 1.30Ct brilliant cut diamond that has H color and I1 clarity. The masterfully crafted delicate openwork platinum setting is decorated by 18 single cut diamonds. The approximate total weight of all diamonds is 1.65 Ct. The ring is a size 8 and can easily be sized.

An elegant Art Deco platinum filigree ring centered by a .70 old European cut diamond mounted in an octagonal surround of caliber cut synthetic sapphires (typical of genuine Art Deco period rings). The platinum setting is beautifully pierced at the front and the shank is engraved in a foliate pattern completely around. The diamond is graded as G/H color and VVS1 clarity, and has excellent cut with fine brilliance. The sapphires are bright and provide a nice pop of color. The interior of the s...

A spectacular Art Deco period platinum brooch with bezel set round and baguette diamonds comprising over 6 carats of diamonds, Circa 1925. The piece measures approx 2" by 1". It is not marked, but tests platinum. The brooch weighs 8.9 grams and is in excellent condition. A rare find that is elegant simplicity.

A very fine round platinum, diamond and pearl brooch depicting a flower in full blossom being visited by a small insect. The flower’s leaves and petals are set with mine-cut diamonds, as are the insect’s wings. The insect’s body is formed from a small natural pearl and pearls also adorn the flower in several places. The delicacy of the design is amazing. The diamonds are very good quality and the pearls have lovely iridescence. The brooch retains its original safety clasp and 18K gold...