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4.5 Carat Engagement Rings

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GIA Certified 4.70 Carat Emerald Cut Diamond Ring Long Ratio 1.57
Located in Rome, IT
An exquisite long ratio 11.47 mm long emerald cut diamond certified by GIA. The main stone has been certified as vvs1 clarity and J color with a white face and excellent cut and pol...
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, Emerald

Terracotta Zircon Ring Gem 4.80 Carat Round Loose Unset Gemstone
Located in Beverly Hills, CA
Special 4.80 carat Terracotta Zircon round gem, offered loose to a gem lover. Returns are accepted and paid by us within 7 days of delivery. We offer supreme custom jewelry work upon...
Category

21st Century and Contemporary Modern 4.5 Carat Engagement Rings

Materials

Other, Zircon, 18k Gold, Platinum

4.68 Carat Unheated Natural Red Ruby and Diamond Ring Platinum 18 Karat
Located in Brunswick, ME
A stunning Estate 3.68 carat unheated ruby and diamond ring, mount crafted of platinum ( "PT950"). Accented by 14 princess diamonds and 52 round diamonds that weigh approximately 1 ...
Category

Early 2000s Art Deco 4.5 Carat Engagement Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold, Platinum

Fine Estate Fine 4.90 Carat Emerald Diamond Engagement Ring
Located in Brunswick, ME
Fine Colombian emerald diamond engagement estate ring. Fine oval natural Colombian oval emerald 3.50 carat. Color: vivid AAA medium green. Clarity: VS. Full of saturation and brillia...
Category

Early 2000s Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Emerald, 14k Gold

4.77 Carat Natural Cobalt Blue Sapphire & Colombian Emerald Engagement Ring 18K
Located in Brunswick, ME
This Unique Natural Blue Sapphire and Colombian Emerald Engagement Cocktail Three Stone Ring is made of Rich Yellow Gold 18 Karat. Featuring a 4.07 Carat Natural Sapphire Cobalt B...
Category

21st Century and Contemporary Contemporary 4.5 Carat Engagement Rings

Materials

Emerald, Sapphire, Blue Sapphire, Yellow Gold, 18k Gold

14K Yellow Gold Earthy Light Yellow Moissonite and Diamond Ring 'Center 4.84 CT'
Located in San Francisco, CA
This Delicate ring features a Rare Fancy Light Yellow 4.84 -Carat (9 mm) Round Moissanite set in twelve (12) tiny prongs on top of a 1.2 mm band. Eight(8) Natural brilliant round dia...
Category

21st Century and Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, Yellow Gold

5.70 Carat Tourmaline Yellow Diamond 18 Karat White Gold Engagement Ring
By DGI
Located in Los Angeles, CA
A unique beauty that is sure to be a rare piece! This stunner has a gorgeous Square Cushion Cut Tourmaline that weighs 4.77 Carats. It is surrounded by 20 Round Cut Diamonds that w...
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Yellow Diamond, Diamond, Tourmaline, Yellow Gold, 18k Gold, White Gold

4.69 Carat Spinel and Diamond Gold Ring
Located in Tucson, AZ
Spinels of very unusual colors have recently been unearthed from the Mahenge area in Tanzania. This purplish red to orangish red Spinel was cut by Vance Gems into a unigue square br...
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, Spinel, 14k Gold, White Gold

GIA Certified 4.50 Carat Emerald Cut Diamond Ring VS1 Clarity F Color
Located in Rome, IT
An exquisite GIA Certified 4.50 Carat Emerald Cut Diamond Ring VS1 Clarity F Color mounted in solid 950 platinum.
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

4.75 Carat Sugarloaf-Cut Unheated Burmese Vivid Red Spinel
Located in Hong Kong, HK
4.75 Carat Sugarloaf-Cut Unheated Burmese Vivid Red Spinel: A gorgeous gem, it is a 4.75 carat unheated sugarloaf Burmese vivid red spinel. Hailing from the historic Mogok mines in ...
Category

2010s Contemporary 4.5 Carat Engagement Rings

Materials

Spinel

5.34 Carat Morganite Diamond Rose Gold Engagement Ring
Located in San Dimas, CA
5.34 Carat Morganite Diamond Rose Gold Engagement Ring A gorgeous ring that can easily be transformed into an engagement ring for that special someone! It has a stunning 4.92 Cara...
Category

21st Century and Contemporary Modern 4.5 Carat Engagement Rings

Materials

Diamond, Morganite, 14k Gold, Rose Gold

4.89 Carat Diamond Solitaire Engagement Ring in Platinum
Located in Jesmond, Newcastle Upon Tyne
An exceptional and impressive antique 4.89 carat diamond solitaire ring, displayed in a contemporary platinum setting; part of our diverse diamond jewelry collections. An exceptiona...
Category

Early 1900s Contemporary Antique 4.5 Carat Engagement Rings

Materials

Diamond, 14k Gold, Platinum

Vintage Victorian Style Apx 4.50 Carat Rose Cut Diamond Ring
Located in BEVERLY HILLS, CA
Vintage Victorian style rose cut diamond ring. Center round rose cut diamond, approximately 4.50ct but faces up like a 5ct diamond. Approximately I/J color and VS clarity. Bezel set,...
Category

Mid-19th Century Victorian Antique 4.5 Carat Engagement Rings

Materials

Diamond, Silver

4.68 Carat Fancy Yellow “GIA” Radiant Cut Diamond Ring by the Diamond Oak
Located in New York, NY
4.68 Carat Fancy Yellow Radiant Cut Diamond Ring GIA Grading report Included ( # 15321851 ) Ring is highlighted with 48 round diamonds weighing .87 carats total , G Color Vs Clarit...
Category

2010s Contemporary 4.5 Carat Engagement Rings

Materials

Yellow Diamond, 18k Gold

4.58 Carat Natural No Heat GIA Certified Sri Lankan Blue Sapphire Diamond Ring
Located in Tucson, AZ
This GIA certified no heat blue cushion shape sapphire weighs 4.58 carats is from Sri Lanka, where we hand picked the stone a few years ago. It is mounted in an 18-karat white gold r...
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Santa Maria Aquamarine and Diamond Cocktail Ring in 18kt White Gold, 4.7 Carat
Located in Boston, MA
Gorgeous deeply saturated rare quality 3 carat Santa Maria Aquamarine set with 4 pear-shaped diamonds (.63 carats), 5 marquise-shaped diamonds (.62 carats) and 135 brilliant-cut diam...
Category

2010s Art Deco 4.5 Carat Engagement Rings

Materials

Aquamarine, Diamond, White Diamond, 18k Gold, White Gold

Fancy Yellow Radiant Diamond Ring 3.63 Carat Platinum/18 Karat YG GIA Certified
Located in Beverly Hills, CA
Fancy Yellow Radiant Diamond Ring 4.78 Carats Total Weight Platinum/18KYG GIA STUNNING!!! Radiant Cut Diamond 3.63 carats Fancy Yellow Color VS2 Clarity With GIA Certificate # 11...
Category

2010s Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Mandarin Garnet Ring Gem 4.92 Carat Oval Loose Unset Gemstone
Located in Beverly Hills, CA
Bright 4.92 carat Mandarin Garnet oval gem offered loose to a very unique lady or gentleman. Returns are accepted and paid by us within 7 days of delivery. We offer supreme custom je...
Category

21st Century and Contemporary Contemporary 4.5 Carat Engagement Rings

Materials

Garnet, Mandarin Garnet, 18k Gold, Platinum

Hancocks 4.58 Carat G VS Asscher Cut Diamond & Honeycomb Diamond-Set in Platinum
Located in London, GB
4.58 Carats G VS2 Asscher cut diamond with GIA certificate 6 x matching grade bullet cut diamonds with a combined weight of 0.22 carats Platinum with maker's mark and London assay m...
Category

2010s Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, Platinum

GIA Certified 4.50 Carat Emerald Cut Diamond Ring H VS1 Triple Excellent Cut
Located in Rome, IT
Amazing emerald cut diamond ring the main stone is an exquisite 4.01 carat emerald cut diamond with H color and VS1 clarity plus triple excellent cut without fluorescence. the side ...
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

4.9 Carat Morganite and Diamond Ring in 18 Karat Rose Gold
Located in Hong Kong, Kowloon
This collection features an array of magnificent morganites! Accented with diamonds these rings are made in rose gold and present a classic yet elegant look. Classic morganite ring...
Category

21st Century and Contemporary Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Morganite, Gold, 18k Gold, Rose Gold

4.57 Carat Cushion Tanzanite and Diamond Cocktail Ring
Located in Great Neck, NY
This beautiful cocktail ring features a stunning 4.57 Carat Cushion Tanzanite with a Diamond Halo, on a Double Diamond Shank. This Ring is set in 18k White Gold, with 18k Yellow Gold...
Category

21st Century and Contemporary 4.5 Carat Engagement Rings

Materials

Tanzanite, Diamond, 18k Gold, White Gold

Asscher Cut Diamond Eternity Band
Located in Wailea, HI
21 Yellow Asscher Cut Diamonds in 18k yellow gold ring 4.86 Carat total weight Approximate Clarity VVS-VS Ring Size 6.5
Category

21st Century and Contemporary Modern 4.5 Carat Engagement Rings

Materials

Diamond, 18k Gold

Cartier GIA Certified Kashmir Blue Sapphire and Diamond Three-Stone Ring
Located in New York, NY
A very rare blue sapphire ring made and signed by Cartier. Showcasing a 4.99 carat cushion cut blue sapphire. Flanking the center are two step-cut trapezoid diamonds weighing 1.02 ca...
Category

21st Century and Contemporary Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

GIA Certified 4.50 Carat Princess Cut Diamond Platinum Engagement Ring
Located in New York, NY
A timeless solitaire engagement ring style. Features a 4.50 carat princess cut diamond certified by GIA as F color, VS2 clarity, set in a classic four-prong mounting made in platinum...
Category

21st Century and Contemporary Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, Platinum

Aquamarine Ring Gem 4.90 Carat Radiant Cut Loose Unset
Located in Beverly Hills, CA
Lively 4.90 carat, cut-cornered, radiant-cut Aquamarine gem, offered loose to a gem connoisseur. Returns are accepted and paid by us within 7 days of delivery. We offer supreme custo...
Category

21st Century and Contemporary Modern 4.5 Carat Engagement Rings

Materials

Aquamarine, Beryl, 18k Gold, Platinum

Victorian 3.30 Carat Moonstone Garnet Diamond Yellow Gold Ring
Located in Stamford, CT
1900's Victorian moonstone, diamond and garnet ring. 3.30ct oval center stone, accented with 3 green demantoid garnets and 5 old European cut diamonds in 14k yellow gold setting. 1...
Category

Early 20th Century 4.5 Carat Engagement Rings

Materials

Diamond, Garnet, Moonstone, Gold, 14k Gold, Yellow Gold

INTERNALLY FLAWLESS GIA Certified Fancy Intense Yellow 4.50 Carat Diamond Ring
Located in Rome, IT
An amazing cushion cut fancy intense yellow diamond certified by GIA with two side diamonds and a pave and halo of round brilliant cut diamonds all pure and white. the main stone dis...
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, Yellow Diamond

GIA Certified 4.50 Carat Three Stone Diamond Engagement Ring
Located in Rome, IT
GIA Certified 4.50 Carat Three Stone Diamond Engagement Ring
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 4.50 Carat H Color VS1 Clarity Triple Excellent Cut Ring
Located in Rome, IT
GIA Certified 4.50 Carat H Color VS1 Clarity Triple Excellent Cut Ring
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, 18k Gold

Vintage 1950s 4.92 Carat Amethyst and Diamond Rose Gold Twist Ring
Located in Jesmond, Newcastle Upon Tyne
A fine 4.92 carat amethyst and 0.25 carat diamond, 9 karat rose gold and 9 karat white gold twist style cocktail ring; part of our diverse vintage jewelry collections. This fine and...
Category

20th Century 4.5 Carat Engagement Rings

Materials

Amethyst, Diamond, 9k Gold, Rose Gold, White Gold

Art Deco Style 4.76 Carat Cushion Shaped Sapphire and Diamond and Platinum Ring
Located in Washington, DC
A stunning Art Deco Style Sapphire and Diamond platinum ring! The 4.76 carat cushion shaped Sapphire is bezel set with a milgrain edge sitting atop a balanced dispersion of old Euro...
Category

Mid-20th Century Art Deco 4.5 Carat Engagement Rings

Materials

Diamond, Sapphire, Platinum

GIA Certified 4.55 Carat Fancy Yellow Ring
Located in Knightsbridge, GB
FANCY YELLOW RING - 4.55 CT Set in 18K White gold Total fancy yellow diamond weight: 3.50 ct [ 1 diamond ] Color: Fancy yellow Clarity: VS2 Total small fancy yellow diamond weig...
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

White Diamond, Yellow Diamond, 18k Gold

4.88 Carat Blue Emerald Cut Sapphire and Diamond Halo Engagement Ring
Located in New York, NY
Creative and expertly hand-crafted; A dazzling halo set with round diamonds accent the 4.88 carat blue sapphire center stone. Finished with a pave of diamonds encircling the 18k whit...
Category

21st Century and Contemporary Modern 4.5 Carat Engagement Rings

Materials

Sapphire, Diamond, Blue Sapphire, 18k Gold, White Gold

4.51 Carat J VS1 Old Mine Cushion Cut Diamond and Platinum Ring by Hancocks
Located in London, GB
4.51 carats J VS1 Old mine cushion cut diamond with GIA certificate Single cut diamonds weighing 0.9 carats UK finger size M, US size 6.5, can be adjusted to your own finger size 6.3...
Category

2010s Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, Platinum

French 4.90 Carat Burmese Sapphire 1.39 Carat Diamond Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning antique 4.90 carat Burmese sapphire and 1.39 carat diamond, platinum cocktail ring; part of our diverse antique jewelry and estate jewelry collections. This stunning, fin...
Category

1930s Vintage 4.5 Carat Engagement Rings

Materials

Sapphire, Diamond, Blue Sapphire, Platinum

GIA 4.50 Carat Princess Cut Diamond Platinum Ring
Located in Rome, IT
GIA Certificate Included Main Gemstone: Princess Cut Diamond Diamond Weight: 4.00 Carats - Princess Cut - Diamond Color: H Diamond Clarity: SI1 Large and beautifully cut prin...
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Platinum

Australian Boulder Opal and Diamond Ring in 18 Karat White Gold
Located in Sydney, AU
A multi-coloured Australian natural opal (4.56ct) is the heart of the “Juliette” opal ring. The intricate 18K white gold setting and a sparkle of 32 diamonds add another dimension to...
Category

2010s Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, Opal, 18k Gold, White Gold

INTERNALLY FLAWLESS F Color GIA 3 Carat Oval Diamond Ring
Located in Rome, IT
INTERNALLY FLAWLESS F Color GIA 3 Carat Oval Diamond Ring
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Platinum

3.15 Carat Black Sapphire 1.6 Carat Diamond Ring and 1.44 Carat Wedding
Located in London, GB
Wimbledon-Furniture Wimbledon-Furniture is delighted to offer for sale this absolutely lovely Canturi Australia Black Sapphire & Diamond engagement ring TCW 4.75 and Cubism eternity...
Category

21st Century and Contemporary Modernist 4.5 Carat Engagement Rings

Materials

Diamond, Sapphire, 18k Gold

4.7 Carat Peridot with Tsavorite and Diamond Ring in 18 Karat Yellow Gold
Located in Hong Kong, Kowloon
This collection features an array of pretty peridot rings! Accented with diamonds these rings are made in yellow gold and present a vibrant and fresh look. Classic peridot ring in ...
Category

21st Century and Contemporary Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Peridot, Tsavorite, Gold, 18k Gold, Yellow Gold

GIA Certified 4.53 Carat Emerald Cut Diamond Ring VS1
Located in Rome, IT
This magnificent engagement ring features a 4.53 carat emerald cut diamond with H color (WHITE FACE) and VS1 clarity. This center stone is set with two side trapezoid diamonds consid...
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Emerald

GIA Certified 4.50 Carat Emerald Cut Diamond Ring VVS1 G Color
Located in Rome, IT
Gia Certified 4.50 Carat Emerald Cut Diamond Ring
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Emerald

GIA Certified 4.50 Carat Round Brilliant Cut Engagement Solitaire Ring H VVS1
Located in Rome, IT
An amazing diamond ring with a beautiful 4.01 carat round brilliant cut diamond plus a delicate pave of round brilliant cut diamonds all vvs1 in clarity and H color excellent cut ABS...
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond

4.49 Carat Red Rubelite Tourmaline Diamond Platinum Ring
Located in Stamford, CT
Bright red rubellite tourmaline and diamond Art Deco ring. 4.49ct emerald cut center stone with 6 round old European cut accent diamonds in a platinum setting from teh 1920's. 1 re...
Category

Early 20th Century 4.5 Carat Engagement Rings

Materials

Diamond, Rubelite, Tourmaline, Platinum

GIA Certified 4.66 Carat Pear Cut Diamond Ring
Located in Rome, IT
This 4.66 carat pear shaped diamond engagement ring is spectacular. This ring is made in 18k white gold and accented with approx 0.64 carats of pave set round brilliant cut diamonds....
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond

GIA Certified 4.50 Carat H VS2 Cushion Cut Diamond Excellent Cut
Located in Rome, IT
This gorgeous 4.50 Carat GIA certified cushion cut diamond ring is completely eye clean, bright white, and it sparkles stunningly with vibrant brilliance! Well cut, the diamond’s spa...
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Platinum

4.9 Carat Zambian Emerald and Yellow & White Diamond Ring in 18 Karat White Gold
Located in Hong Kong, Kowloon
Showcasing the most vibrant Colombian and Zambian emeralds and diamonds, Sunita Nahata dedicates this collection to her home city of Jaipur where the jewelry industry dates back to t...
Category

21st Century and Contemporary Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Yellow Diamond, Emerald, Gold, 18k Gold, White Gold

4.5 Carat Zambian Emerald and White Diamond Ring in 18 Karat White Gold
Located in Hong Kong, Kowloon
Showcasing the most vibrant Colombian and Zambian emeralds and diamonds, Sunita Nahata dedicates this collection to her home city of Jaipur where the jewelry industry dates back to t...
Category

21st Century and Contemporary Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Emerald, Gold, 18k Gold, White Gold

Shreve, Crump & Low GIA Certified 4.72 Carat D SI1 Round Brilliant Diamond Ring
Located in Boston, MA
This diamond ring is being offered by Shreve, Crump & Low. This 4.72 carat GIA certified D SI1 round brilliant cut triple excellent diamond measuring 10.72 - 10.79 x 6.69 mm is cust...
Category

2010s 4.5 Carat Engagement Rings

Materials

Diamond, Platinum

GIA Certified 4.84 Carat Princess Cut Diamond VS1 Clarity G Color Excellent Cut
Located in Rome, IT
Exceptional 4.24 vs1 g color princess cut diamond with excellent cut and polish the ring is set in solid 950 platinum and has round brilliant cut diamond pave
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond

GIA Certified 4.50 Carat Emerald Cut Diamond Ring
Located in Rome, IT
GIA Certified 4.50 Carat Emerald Cut Diamond Ring
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Emerald

4.74 Carat 'total weight' Pear and Baguette Diamond "Bypass" Ring in Platinum
Located in Palm Beach, FL
4.74 Carat (total weight) Pear and Baguette Diamond "Bypass" Ring set in Platinum.
Category

20th Century 4.5 Carat Engagement Rings

Antique Emerald 1.20 Carat Diamond Platinum Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique 0.57 carat emerald and 1.20 carat diamond, platinum dress ring; part of our diverse antique estate jewelry collections. This stunning, fine a...
Category

1920s Vintage 4.5 Carat Engagement Rings

Materials

Diamond, Emerald, Platinum

GIA Certified 4.50 Carat Emerald Cut Diamond D Color VS2 Clarity 3X
Located in Rome, IT
GIA Certified 4.50 Carat Emerald Cut Diamond D Color VS2 Clarity 3X
Category

2010s Modern 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Emerald

GIA Certified 4.68 Carat Intense Yellow Diamond Three-Stone Engagement Ring
Located in New York, NY
A color-rich three-stone engagement ring showcasing a 4.68 carat radiant cut yellow diamond, certified by GIA as Fancy Intense Yellow color, VS2 clarity. Flanking the center diamond ...
Category

21st Century and Contemporary Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, Yellow Diamond, Yellow Gold, Platinum

4.7 Carat Peridot and Diamond Ring in 18 Karat Yellow Gold
Located in Hong Kong, Kowloon
This collection features an array of pretty peridot rings! Accented with diamonds these rings are made in yellow gold and present a vibrant and fresh look. Classic peridot ring in ...
Category

21st Century and Contemporary Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Peridot, Gold, 18k Gold, Yellow Gold

4.8 Carat Peridot and Diamond Ring in 18 Karat Yellow Gold
Located in Hong Kong, Kowloon
This collection features an array of pretty peridot rings! Accented with diamonds these rings are made in yellow gold and present a vibrant and fresh look. Classic peridot ring in ...
Category

21st Century and Contemporary Contemporary 4.5 Carat Engagement Rings

Materials

Diamond, White Diamond, Peridot, Yellow Gold, Gold, 18k Gold