12k Diamond

Vintage yellow gold floral design pin with seed pearls and diamonds. Tests 12k and weighs 5.3 grams. The diamond is a round brilliant cut, .20 carats, J to K color, Si clarity.

A vintage 12k white gold diamond band ring with a simple, classic design.

A vivid blue sapphire forms the heart of this charming vintage ring, its graceful pear-shaped silhouette framed by a sparkling halo of diamonds totaling approximately .21 carats. Cra...

Here we have a striking Bernard K Passman band ring crafted in platinum, featuring a bold design with round white diamonds and black coral accents, size 12.

No hidden fees. 💎 A vintage ring in 12k gold, circa 1970s, set with natural diamonds totaling approximately 1.60 carats (H-I-J color, SI2-SI3-I1 clarity).

A wonderful Antique Sapphire Ring with Diamond Accents. Hallmarked 500 which is less than 14K more like 12K.

These vintage 12k yellow gold stud earrings feature heart-shaped sapphire centers framed by bright diamond halos.

The miniature paintings are held in 12k yellow gold frames. The anterior face of this Victorian pendant is encircled with twenty-nine impressive claw set Old European round cut diam...

12K Yellow Gold and Diamond Starburst Brooch/Pendant- This striking piece is crafted in 12K yellow gold and designed in a radiant starburst motif.

. 💎 An antique bangle bracelet in 12k gold, set with natural diamonds totaling approximately 1.50 carats (H-I color, SI1-SI2 clarity).

This antique brooch is crafted in 12k white gold and features a finely carved shell cameo depicting a classical lady adorned with a diamond necklace accent.

. 💎 A vintage navette ring in 12k gold, set with natural diamonds totaling approximately 0.70 carats.

The reverse bears a 14k stamp, while the metal is tested as 12k yellow gold. Weight: 5.5 Grams Stone: 0.67ctw Old European Cut Diamonds Stone: Seed Pearls Measurements: 25 × 28 × 10...

Antique 12k White Gold Shell Cameo with Diamond Accent Brooch, featuring a beautifully hand-carved shell cameo depicting a refined classical figure.

This stunning and impressive vintage diamond bracelet has been crafted in 12k white gold with silver settings.

This vintage charm is crafted in 12k gold and features a playing card design, showcasing the diamonds suit in yellow enamel on a white background.

These fine and impressive antique cufflinks have been crafted in 12k yellow gold with platinum settings. The plain oval shaped anterior face of each link is embellished with a singl...

This fine and impressive jockey and horse brooch has been crafted in 12k yellow gold with silver settings. The anterior surface of the three-dimensional horse is embellished with fo...

This elegant Victorian ring (circa 1890–1900) features a rare 0.61ct square cushion-cut light yellow sapphire, its sunshine hue evoking warmth and sophistication. The sapphire is fla...

This fine and impressive 1940s three stone diamond ring has been crafted in 12k white gold.

0.70 ct Natural Diamond 12K White Gold Huggie Hoop Earrings Metal Type: 12k Solid White Gold Total Item Weight: 3.8 Grams Length: 13.8 mm x Width: 4.0 mm x Height: 2.7 mm 1: Primary...

Weight: 16.9 Grams Stone: Shell (54.6 x 37.6 mm), Diamond Measurements: 62.7 x 44 x 16 mm Metal: 12K Gold ITEM #: BR-1463-112624-16

South Sea Pearl Day & Night with 12 Carats Diamond Cocktail Earrings 18 K White Gold , Beautiful estate piece one South Sea white Pearl and one Tahitian black Pearl both pearls are...

Estate Art Deco 12K White Gold Double Diamond Ring - VHK#1009 Item Details: Year: 1920s Ring Size: 4.5 (Sizable) Metal Type: 12K Gold [Hallmarked, and Tested] Weight: 1.40 grams ...

This fine and impressive antique diamond bar brooch has been crafted in 12k yellow gold with a platinum setting.

This 12k gold Victorian brooch is meticulously crafted with superb attention to detail.

A dramatic antique ring dating to 1890–1900, designed as a sweeping spray of old European cut diamonds, red spinel, and vivid green demantoid garnets set in 12 karat gold.

This fine and impressive pearl and diamond ring has been crafted in 12k yellow gold with a platinum setting.

Six oval cabochon cut opals totaling 0.24ctw form petals around a central diamond in this antique Edwardian 12k yellow gold ring.

This is a stunning late Victorian era 12k gold and sterling silver diamond pendant brooch.

A stunning, fine and impressive 2.96 carat garnet, pearl and 0.72 carat diamond, 12k yellow gold pendant - boxed; an addition to our antique jewellery and estate jewelry collections.

. 💎 Vintage earrings in 12k gold, circa 1960s, set with natural diamonds totaling approximately 2 carats (H color, SI1-SI2 clarity).

This vintage charm is crafted in 12k gold and features a playful domino design, specifically showing the five-dot arrangement, set in black enamel.

This vintage charm is crafted in 12k gold and features a playful domino design, specifically showing the six-spot configuration in red enamel dots.

This vintage charm is crafted in 12k gold and features a playful domino design, specifically showing the six-spot configuration in yellow enamel dots.

Weight: 14.7 Grams Stone: Shell Cameo, Diamond Measurements: 52.56 x 41.1 x 13.75mm Hallmark: 12k Metal: 12k White Gold Item #: BR-1685-090325-15

The high colour graded diamonds display a fine white colour, brilliance and presence.

Antique victorian 12k Goldcuff braclete centeted with rose cut diamond anchor design with an estimate diamond weight of 1 carat and total 12k gold weight of 12 grams braclete width 6...

Details: Rare find! A wonderful Georgian diamond deer brooch! Beautiful pair of sweet reindeer with rose cut diamonds and little ruby eyes. Both a doe and a buck depicted in this swe...

Vintage enamel drop earrings in 12k gold, circa 1960s, set with natural diamonds totaling approximately 0.65 carats (H-I-J-K color, SI2-SI3-I1 clarity).

Measurements: 57.9 x 42.5 x 17 mm Metal: 12k Gold ITEM #: BR-1476-121224-17

This antique pendant is beautifully crafted in 12k yellow gold, featuring a finely carved agate blossom accented with a sparkling diamond center.

Dating to the late 19th century, these Victorian earrings feature old European cut diamonds totaling 0.23ctw in 12k rose gold buttercup settings.

Italian Halo Ring with natural Blue - Green Sapphire and 12 rose-cut Diamonds. Hand-made between the 1920s - 1930. sItalian hallmarks : 486,500, NA ( Naple s) band's metal tested 12...

Discover the elegance of this breathtaking 12k-14K White Gold Diamond, Ruby & Sapphire Waterfall Cocktail Ring (3.75CT) – Size 7.5, designed for bold luxury and vibrant gemstone expr...

This stunning, fine and impressive antique bar brooch has been crafted in 12k yellow gold. The tapering bar is ornamented to the terminal with an impressive feature claw set Old Eur...

An antique heart pendant necklace in 12k gold, circa 1900s, set with natural diamonds totaling approximately 5 carats (G-H-I-K-L color, VS-SI1-SI2-SI3-I1 clarity) and natural rubies ...

12K Yellow Gold Opal and Diamond Halo Ring Size 7.75 This stunning ring features a luminous oval opal stone surrounded by 16 rose cut diamonds set in classic 12K yellow gold.

An antique heart pendant necklace in 12k gold, circa 1900s, set with natural diamonds totaling approximately 5.50 carats.

12k rose and white gold ring. This gorgeous ring has a center, checkerboard cushion faceted, medium blue color aquamarine, approximately 6.16 CTS, set in a rose gold half bezel, deco...

A stunning, fine and impressive antique hot enamel, 0.02 carat garnet, 0.10 carat diamond, pearl and 12 karat yellow gold dragonfly brooch - boxed; part of our Victorian insect brooc...

This vintage charm is crafted in 12k gold and features a playing card design, showcasing the clubs in blue enamel on a white background.

. 💎 A vintage navette ring in 12k gold, circa 1960s, set with natural diamonds totaling approximately 1.50 carats (H color, SI1-SI2 clarity).

An antique dimond pendant enamel necklace in 12k gold, circa 1900s, set with natural diamonds totaling approximately 0.55 carats (H-I color, SI1-SI2-SI3-I1-2 clarity).

An antique ring in silver-topped 12k gold, circa 1900s, set with natural diamonds totaling approximately 0.63 carats (H-I color, VVS-VS-SI1 clarity).

44 Round Diamond 10-12 Pointer Each Tennis Bracelet in 14 K Yellow Gold 5.5 Carat Line Bracelet, Made in Italy Meet the ultimate bold tennis bracelet.

. 💎 A vintage statement ring in 12k gold, circa 1970s, set with natural brilliant-cut diamonds totaling approximately 0.40 carats, natural rose-cut diamonds totaling approximately ...

--Stone(s):-- Numerous Natural Genuine Diamonds - Rose Cut - Pave Set - 2-3ctw (approx.) (3) Natural Genuine Rubies - Round Cut - Pave Set - Pinkish Red Color Material: 12k Yellow G...

A pair of dangles decorated with natural Chrysolites / Peridots and Diamonds, hand -made in Europe ca. 1920s -1930s Dangles are composed of solid 12K - 14K Gold and Silver, hooks ...

Words simply cannot express how wonderful this piece is, an antique Diamond Chick bangle hailing from the late Victorian era. Such a rare piece to find, these little chicks were mos...