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50 Carat Smokey Quartz Pendant in 22 Karat Gold
By Pamela Farland
Located in New York, NY
pendant measures 40 millimeters X 17 millimeters and weight 50 carats. Hand fabricated in the artist's
Category

21st Century and Contemporary American Artisan Pendant Necklaces

Materials

Quartz, Gold, 22k Gold, Yellow Gold

50 Carat Smokey Quartz Pendant in 22 Karat Gold
50 Carat Smokey Quartz Pendant in 22 Karat Gold
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W 0.67 in L 1.58 in
Half Carat Diamond Inside Out Hoop Earrings Yellow Gold Diamond Hoops
By Five Star Jewelry
Located in Austin, TX
These 40 millimeters diamond hoop earrings are perfect for a bold look! There are 92 diamonds on
Category

2010s American Contemporary Hoop Earrings

Materials

Diamond, 14k Gold, Yellow Gold

Gold Hoop Earrings, Yellow Gold 14 Karat, 14 Karat, Large Hoops
By Five Star Jewelry
Located in Austin, TX
are listed below: 14k Yellow Gold Diameter: ~1.5 inches (40 millimeters) Width: ~0.12 in (3 mm) Weight
Category

2010s American Modern Hoop Earrings

Materials

14k Gold, Yellow Gold

Antique Onyx and Rose Cut Diamond Gold Pin Brooch
Located in Rotterdam, NL
brooch is in very good condition and of high quality. It measures 40 millimeters in length and 30
Category

Antique Late 19th Century European Victorian Brooches

Materials

Diamond, Onyx, 14k Gold, Yellow Gold, Gold

Diamond Hoop Earrings, 14 Karat Yellow Gold Prong Set Round Classic Screw Back
By Five Star Jewelry
Located in Austin, TX
Set Metal Quality: 14 Karat Yellow Gold Earring Type: Hoops Hoop Diameter: 40 millimeters Earring
Category

2010s American Modern Hoop Earrings

Materials

Diamond, White Diamond, Gold, 14k Gold, Yellow Gold

Diamond Hoop Earrings w Screw On Backs Wedding Oval Hoops 14KYG EG14721Y45JJ LV
By Gabriel & Co.
Located in Austin, TX
posts with hinged hoop backs and threaded locks Earring Measurements: 40 millimeters long by 35 mm deep
Category

2010s American Contemporary Hoop Earrings

Materials

Diamond, 14k Gold, White Gold, Yellow Gold, Gold

Lapis Lazuli Tourmaline Citrine Pink Sapphire Yellow Gold Dangle Earrings
Located in Woodstock, GA
sapphires. The earring's main stone is a faceted lapis cab that measures 13 millimeters by 40 millimeters
Category

2010s American Modern Dangle Earrings

Materials

Tourmaline, Lapis Lazuli, Citrine, Pink Sapphire, Gold, Yellow Gold, 18k...

Vintage Diamond Band Ring, .40 Carat Diamond Milgrain Wedding Band
By Five Star Jewelry
Located in Austin, TX
Total Diamond Weight: .40 Carats Diamond Shape: Round Brilliant Diamond Clarity: Ring Size: 7 Band
Category

21st Century and Contemporary American Modern Wedding Rings

Materials

Diamond, Gold, 14k Gold, White Gold

1918 Elgin Rare 6 Size 15J Trench Watch With Armor Shield 118 Years Young!
By Elgin
Located in Raleigh, NC
condition. The case measures approximately 40 millimeters, unheard of during this era! Very Very Rare! I
Category

Vintage 1910s American Art Nouveau Wrist Watches

Materials

Mixed Metal

Diamond Station Necklace 5 Diamonds .40 Carats Two-Tone 14K Gold
By Five Star Jewelry
Located in Austin, TX
: 19.5 / 18 / 16.75 inches Clasp Type: Lobster claw Chain Diameter: 1.4 millimeters Diamond Number: 5
Category

2010s American Contemporary Chain Necklaces

Materials

Diamond, 14k Gold, Yellow Gold, White Gold

Natural Emerald Diamond Ring in 14 Karat Solid White Gold
Located in Los Angeles, CA
, VS2-SI1 Clarity) Quantity: 40 Face Measures: 14.70x14.70 Millimeter SKU: [600163]
Category

2010s American Cocktail Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

Natural Tourmaline Diamond Ring In 14 Karat White Gold
Located in Los Angeles, CA
Color, VS2-SI1 Clarity) Quantity: 40 Face Measures: 15.65x13.40 Millimeter SKU: [600445]
Category

2010s American Cocktail Rings

Materials

Diamond, Tourmaline, 14k Gold, White Gold

Natural Aquamarine Diamond Ring In 14 Karat White Gold
Located in Los Angeles, CA
-G Color, VS2-SI1 Clarity ) Quantity: 40 Face Measures: 15.60x13.40 Millimeter SKU: [600281]
Category

2010s American Cocktail Rings

Materials

Aquamarine, Diamond, 14k Gold, White Gold

8.52 Carat Natural Zircon 14 Karat Solid White Gold Diamond Ring
Located in Los Angeles, CA
-G Color, VS2-SI1 Clarity) Quantity: 40 Face Measures: 19.80x16.70 Millimeter SKU: [600039]
Category

2010s American Cocktail Rings

Materials

Diamond, Zircon, 14k Gold, White Gold

Exquisite Natural Diamond Infinity Necklace In 14 Karat Yellow Gold
Located in Los Angeles, CA
the infinity symbol are 40 natural diamonds, totaling 0.30 carats in weight, with F-G color and VS2
Category

2010s American Modern Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

Exquisite Natural Diamond Infinity Necklace In 14 Karat White Gold
Located in Los Angeles, CA
the infinity symbol are 40 natural diamonds, totaling 0.30 carats in weight, with F-G color and VS2
Category

2010s American Modern Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

Open Link 22k Yellow Gold Necklace by Gurhan
By Gurhan
Located in Beverly Hills, CA
finish. Circular links measure 15 millimeters in diameter, small oval links measure 24 x 19 millimeters
Category

21st Century and Contemporary Link Necklaces

Materials

22k Gold, Yellow Gold

Rhodochrosite and Diamond Yellow Gold Earrings, circa 1960s
Located in Beverly Hills, CA
rhodochrosite totaling 40 ct. (20 ct. each measuring 23 x 16.5 millimeters) with 28 round brilliant cut diamonds
Category

20th Century Stud Earrings

Materials

Diamond, Yellow Gold, 14k Gold, 18k Gold

Sapphire Diamonds Silver Yellow Gold Vintage Dome Ring
Located in Milano, IT
Antique Dome Ring in Silver and Yellow Gold with 40 Diamonds Rose Cut and one Oval Sapphire. This
Category

Vintage 1910s Unknown Dome Rings

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold, Silver

Art Deco Diamond and Pearl Platinum Pendant
Located in Beverly Hills, CA
clarity with the center diamond weighing 0.70 ct. The pendant measures 40 x 33 millimeters in size and is
Category

Vintage 1930s Art Deco Pendant Necklaces

Materials

Diamond, Pearl, Platinum

Diamond 18K Yellow Gold Earclips, circa 1970s
Located in Beverly Hills, CA
One pair of diamond 18K yellow gold earclips featuring 40 round brilliant cut diamonds totaling
Category

20th Century Clip-on Earrings

Materials

Diamond, 18k Gold, Yellow Gold

1.70 Carat Natural Tourmaline Diamond Slide and Clip Pendant 14kt Retractable
Located in New York, NY
Tourmaline and diamond pendant. Handmade throughout. 8x5 millimeter natural oval bright violet
Category

2010s American Pendant Necklaces

Materials

Diamond, Tourmaline, 14k Gold, White Gold

Saint Christopher Protect Us Pendant in Sterling Silver, 1.25 inch Diameter
By Five Star Jewelry
Located in Austin, TX
. Made in sterling silver, the pendant measures 1 1/4 inches in diameter (32 millimeters) and 1 5/8
Category

2010s American Contemporary Pendant Necklaces

Materials

Sterling Silver

Sapphire Ring, Sterling Silver with White and Blue Sapphires
By Five Star Jewelry
Located in Austin, TX
Weight: .40 carat Blue Sapphire Gemstone Color: Dark Blue Average Gemstone Diameter: 2.5 millimeters
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Sapphire, Blue Sapphire, Sterling Silver

Pearl Diamond Ring w Bypass Assymetrical Design Open Wrap Ring, 14K Yellow Gold
By Five Star Jewelry
Located in Austin, TX
any finger. The cultured pearl is 7 to 7.5 millimeters in diameter and a beautiful white color and
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Cultured Pearl, Pearl, 14k Gold, Yellow Gold

Retro Diamond and Hematite Platinum and 14k Gold Necklace, circa 1940s
Located in Beverly Hills, CA
enhancer featuring 40 old European cut, platinum pave-set diamonds totaling 2 ct. Designed with a platinum
Category

20th Century Retro Multi-Strand Necklaces

Materials

Diamond, Hematite, Yellow Gold, 14k Gold, Platinum

RARE 25x22MM Cabochon Cut Cat's Eye Chrysoberyl Ring 18K 99.4g S-5
Located in Chicago, IL
of the stone with the millimeter gage. Chrysoberyl could weigh approximately 40-44 carats). Cat's eye
Category

Late 20th Century Unknown Modern Cocktail Rings

Materials

Chrysoberyl, 18k Gold

Diamond Earring Jackets, Triple Style w Diamonds or Without Drop Earrings
By Five Star Jewelry
Located in Austin, TX
millimeters Earring Width: 7.7 millimeters Diamond Number: 20 Diamond Clarity: VS2 (excellent, eye clean
Category

2010s American Contemporary Dangle Earrings

Materials

Diamond, 14k Gold, Yellow Gold

Ruby Diamond Ring, Yellow Gold, Natural Ruby and Diamond Channel Set
By Five Star Jewelry
Located in Austin, TX
Width: 4.40 millimeters (Tapers To Back) Ring Size: 5.75 Total Carat Weight: .40 Carats Rubies and
Category

21st Century and Contemporary American Retro Cocktail Rings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Sapphire Diamond Dangle Earrings, Oval Sapphire, White Gold Lever-Back Earrings
By Five Star Jewelry
Located in Austin, TX
-Back Earring Length: 16 millimeters Earring Width: 7 millimeters Diamond Number: 40 Diamond Shape
Category

21st Century and Contemporary American Contemporary Drop Earrings

Materials

Sapphire, Diamond, 14k Gold, White Gold

Diamond Emerald Band, Yellow Gold Wedding Ring, Green Emeralds and White Diamond
By Five Star Jewelry
Located in Austin, TX
millimeters Gemstone Color: Green Gemstone Weight: .40 Carats Band Width: 2.85 millimeters Ring Size: 7 (Can
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

White Diamond, Diamond, Emerald, 14k Gold, Yellow Gold

Guaje Tema Filigrana Gourd by Onora
Located in Geneve, CH
Guaje tema filigrana gourd by Onora One of a Kind Dimensions: 40 cm Materials: Gourd, natural
Category

2010s Mexican Modern Decorative Boxes

Materials

Other

Guaje Tema Filigrana Gourd by Onora
Located in Geneve, CH
Guaje tema filigrana gourd by Onora One of a Kind Dimensions: 40 cm Materials: Gourd, natural
Category

2010s Mexican Modern Decorative Boxes

Materials

Other

Pickleball Gold Necklace With .40ct Round Citrine, Yellow Gold
By Five Star Jewelry
Located in Austin, TX
Pendant: 23.5 millimeters x 11.7 Chain Type: Small Cable Chain Length: 18 inches Clasp Type: Spring Ring
Category

2010s American Contemporary Pendant Necklaces

Materials

Citrine, 14k Gold, Yellow Gold

Yellow Sapphire Ring, One-of-a-kind, Serpent, Negative Space v Band, White Gold
By Five Star Jewelry
Located in Austin, TX
gold is 40 times harder than sterling silver and sapphires and the next hardest gemstone to diamond
Category

2010s American Contemporary Cocktail Rings

Materials

Yellow Sapphire, Diamond, White Gold, 14k Gold

18 Karat Yellow Gold 2.10ct Burma Ruby and Diamond Halo Cluster Ring
Located in Laguna Hills, CA
the diamonds are VS2 – SI1 surrounding the center stone. There are a total of 40 round brilliant
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Ruby, Yellow Gold

8.03 Carats Oval Opal Diamond 14 Karat Yellow Gold Bangle Bracelet
By Meghna Jewels
Located in Hoffman Estate, IL
A stunning bracelet handmade in 14K yellow gold. It is hand set in 8.03 carats opal and .40 carats
Category

21st Century and Contemporary Unknown Contemporary Modern Bracelets

Materials

Opal, Diamond, 14k Gold, Gold, Yellow Gold

Sapphire Diamond Ring, Blue Sapphire, 14 Kt White Gold, Stackable Band, Classic
By Five Star Jewelry
Located in Austin, TX
millimeters Sapphire Diameter: 1.3 millimeters Band Width: 2 millimeters Ring Size: 6.25 (can be sized) Total
Category

2010s American Modern Band Rings

Materials

Diamond, Blue Sapphire, Gold, 14k Gold, White Gold

Sapphire Diamond Ring, Blue Sapphire, 14 Kt White Gold, Stackable Band, Classic
By Five Star Jewelry
Located in Austin, TX
millimeters Sapphire Diameter: 1.3 millimeters Band Width: 2 millimeters Ring Size: 6.25 (can be sized) Total
Category

2010s American Modern Band Rings

Materials

Diamond, Blue Sapphire, Gold, White Gold, 14k Gold

Custom X-Diamond Ring, 14k Gold Mixed Metal Bead Criss Cross Ring, LR51628M45JJ
By Gabriel & Co.
Located in Austin, TX
Quality: 14k Yellow Gold Diamond Carat Weight: .40 Carats Diamond Shape: Round Diamond Clarity: SI-1
Category

2010s American Modern Band Rings

Materials

Diamond, 14k Gold, White Gold, Yellow Gold, Mixed Metal

Estate Diamond Band Wide Ring, White Gold, Wedding Band, Four Diamond Ring
Located in Austin, TX
engagement ring. Diamond Number: 4 Total Diamond Weight: .40 Carats Diamond Shape: Round Brilliant Diamond
Category

Vintage 1950s American Retro Wedding Rings

Materials

Diamond, Gold, 14k Gold, White Gold

Organic Gemstone Sterling Silver Custom Necklace, Emerald Cut Citrine, Organic
By Five Star Jewelry
Located in Austin, TX
Measurement of Pendant: 40 x 46 millimeters / 1.5 x 1.75 Inches Chain Type: Sterling Silver Link Chain Length
Category

21st Century and Contemporary American Artisan Pendant Necklaces

Materials

Citrine, Sterling Silver

Mya Dining Table Oxide Slate & Crystal, Marble Design by Joaquín Moll in Stock
By Meddel, Joaquín Moll
Located in VALVERDE DEL MAJANO, CL
oxidized colors along with browns and greens. On the surface a glass top of 15 millimeters. The MYA table
Category

2010s Spanish Modern Dining Room Tables

Materials

Stone, Crystal, Marble, Slate

Platinum Eternity Diamond Band, .50 Carat Diamonds, Vintage Hand Engraved
By Five Star Jewelry
Located in Austin, TX
perfect gift for yourself or your loved one! Platinum Diamond Number: 40 Total Diamond Weight: .50 Carats
Category

21st Century and Contemporary American Modern Wedding Rings

Materials

Diamond, Platinum

Diamond Channel Band, Brushed White Gold, Round Diamond, Stackable, Wedding Ring
By Five Star Jewelry
Located in Austin, TX
Weight: .40 Carats Diamond Shape: Round Brilliant Diamond Clarity: VS2 (Excellent) Diamond Color: G
Category

21st Century and Contemporary American Modern Wedding Rings

Materials

Diamond, Gold, 14k Gold, White Gold

Italian Artemide Design Vico Magistretti 6 Chairs Model Selene
By Vico Magistretti, Artemide
Located in Prato, Tuscany
the legs by opting for an "S" shape that gave greater strength to the plastic sheet only 3 millimeters
Category

Late 20th Century Italian Mid-Century Modern Chairs

Materials

Polyester

Tiffany & Co. Pearl Diamond Platinum Pendant Necklace
Located in Beverly Hills, CA
. The pendant measures 1-3/4 x 1-5/8 (4.4 x 4 centimeters). The pearl measures 12.8 x 10.9 millimeters
Category

1990s American Edwardian Pendant Necklaces

Materials

White Diamond, Pearl, Platinum

Tiffany & Co. Pearl Diamond Platinum Pendant Necklace
Tiffany & Co. Pearl Diamond Platinum Pendant Necklace
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H 1.75 in W 1.63 in L 16 in
Antique 14K Gold Multi-Strand Mourning Necklace
Located in Rotterdam, NL
clasp. The black jet beads are round-shaped and have a diameter of approximately 12 millimeters. Each
Category

Antique Late 19th Century Dutch Victorian Multi-Strand Necklaces

Materials

Other, 14k Gold, Gold, Yellow Gold

.40 ct Peridot Gemstone Band, 14K Yellow Gold, August Birthstone Band
By Five Star Jewelry
Located in Austin, TX
: Peridot Gemstone Number: 4 Gemstone Weight: .40 ct Gemstone Color: Light Green Gemstone Shape: Round Band
Category

21st Century and Contemporary American Artisan Band Rings

Materials

Peridot, Yellow Gold, 14k Gold

Diamond Bezel Eternity Band, .40 Carats in 14K White Gold, Stackable Ring
By Five Star Jewelry
Located in Austin, TX
Total Weight: .40 carats Diamond Shape: Round Brilliant Diamond Clarity: VS2 (excellent, eye clean
Category

2010s American Contemporary Band Rings

Materials

Diamond, 14k Gold, White Gold, Gold

Vintage 20kt Yellow Gold, Cabochon Sapphire 13.53ctw, Diamond 1.67ctw Necklace
Located in Rancho Santa Fe, CA
grams and there are 23 diamonds and 40 sapphires. This vintage necklace has been inspected to make sure
Category

20th Century Unknown Artisan Drop Necklaces

Materials

Diamond, Sapphire, Yellow Gold

Vintage Brooche and Pendant 1950s Camafeo Gold 18 Karat
Located in Valencia, Comunidad Valenciana
. Closure system Needle and rooster. Measures Cameo 25x18x3 millimeters. Brooch Measures: Width: 40
Category

Vintage 1950s Spanish Retro Brooches

Materials

Agate, Carnelian, 18k Gold, Gold

Vintage Brooche and Pendant 1950s Camafeo Gold 18 Karat
Vintage Brooche and Pendant 1950s Camafeo Gold 18 Karat
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H 0.16 in W 0.89 in L 1.58 in
Vintage Etruscan Revival 1930s Big Pendant Agate and Pearl Yellow Gold 18 Karat
Located in Valencia, Comunidad Valenciana
measures: Width : 40 millimeters. Length: 35 millimeters. Height: 15 millimeters.
Category

Vintage 1930s Unknown Etruscan Revival Pendant Necklaces

Materials

Agate, Pearl, 18k Gold, Yellow Gold

Custom Diamond Initial Letter Charm Fashion Pendant 14K Yellow Gold
By Alberto
Located in GREAT NECK, NY
measures approximately: 30 x 40 millimeters Fine one-of-a-kind craftsmanship meets incredible quality in
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Vintage Bracelet Art Deco 1930s Diamond Yellow Gold 18 Karat and Platinum
Located in Valencia, Comunidad Valenciana
. Measures centerpiece: Length: 40 millimeters. Width: 17 millimeters. Height: 3.10 millimeters. Hallmark: no.
Category

Vintage 1930s Unknown Art Deco Link Bracelets

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Modern, Leaf Style Earrings with .40 Carat Diamonds, VS Clarity, circa 1950
Located in Aliso Viejo, CA
diamonds measuring, 3.6 Millimeter have an estimated weight of approximately .40 carat total. Modern, Circa
Category

Mid-20th Century Unknown Modern Clip-on Earrings

Materials

Diamond, 14k Gold

Paris Night - Paris, France - Celine Dion Tour 2016 - Edition Size-10 - 40 x 60"
By Barnev Valsaint
Located in Las Vegas, NV
limited to (10) only. Each image is face mounted to acrylic and has a 2 millimeter Komatex backing.
Category

21st Century and Contemporary Contemporary Black and White Photography

Materials

Acrylic Polymer, Archival Ink, Archival Paper, Archival Pigment

Vintage Art Deco Bracelet Brilliant Cut Diamond and Sapphire White Gold 18 Karat
Located in Valencia, Comunidad Valenciana
carats, G-H color and clarity Vs1-SI1. 60 pink cut diamonds of 1.5 millimeters in diameter and 40 Blue
Category

Vintage 1930s Unknown Art Deco Link Bracelets

Materials

Diamond, Sapphire, 18k Gold

5.50 Carat, Zircon Blue Stone Cocktail Ring Set with Diamonds, Contemporary
Located in Aliso Viejo, CA
cut diamonds measuring 1.60 millimeters. The total weight of the diamonds are .40 carat, estimated
Category

21st Century and Contemporary Unknown Contemporary Solitaire Rings

Materials

Zircon, 14k Gold

Ballerina Baguette Diamond Heart, 14 Karat with Swiss, Heart Blue Topaz
Located in Aliso Viejo, CA
shaped, Swiss colored blue topaz. The (40) diamonds are channel set and measure approximately 1.85 mm x
Category

Late 20th Century Unknown Contemporary Drop Necklaces

Materials

Diamond, 14k Gold

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40 Millimeters For Sale on 1stDibs

There is a broad range of 40 millimeters for sale on 1stDibs. These distinct designs — crafted with great care and often made from gold, 14k gold and yellow gold — can elevate any look. Find a collection of 110 vintage versions or 195 modern creations for a more contemporary example of these cherished accessories. Our inventory is broad and distinctive, with accessories on offer that were made as long ago as the 18th Century to those produced as recently as the 21st Century. The designs in our inventory of 40 millimeters bearing contemporary or modern hallmarks are very popular. Versions of these items have been a part of the life’s work for many jewelers, but those produced by Five Star Jewelry, OGI Ltd and Sarosi By Timeless Gems are consistently popular. Browse our collection of 181 diamond versions today to add the perfect touch to your look. Today, if you’re looking for round cut 40 millimeters and are unable to find the perfect match, our selection also includes oval cut and emerald cut alternatives. Most of our 40 millimeters for sale are for women, but there are 114 pieces available to browse for men.

How Much are 40 Millimeters?

On average, 40 millimeters at 1stDibs sell for $3,250, while they’re typically $115 on the low end and $280,000 for the highest priced versions of this item.