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Deal.ai › Compare

4Ct Oval Solitaire Lab Grown Diamond Ring vs Pompeii3 Marquise Diamond Engagement Ring

Pick the Bliss Diamond 4ct oval solitaire if you want one large, clean-looking center stone and a simple band that never goes out of style. Pick the Pompeii3 marquise ring if you want a multi-stone look with accent diamonds and the option of platinum. The Bliss ring is a single certified lab grown oval in 14k gold with a 2 mm band; the Pompeii3 ring is a marquise center with accent stones, made in the USA, and comes in a range of carat weights. Owners of both praise the sparkle and the value of lab grown stones. The Bliss solitaire is the safer long-term choice for a classic engagement ring; the Pompeii3 is the more decorative, more configurable option.

  • Choose the Bliss Diamond 4ct oval solitaire if you want one big, certified oval diamond on a clean 14k gold band and a timeless look.
  • Choose the Pompeii3 marquise ring if you want a marquise center with accent diamonds, platinum as an option, and a made-in-USA setting.

Prices

  • 4Ct Oval Solitaire Lab Grown Diamond Ring: $1,393.92 at Bliss Diamond (checked today)
  • Pompeii3 Marquise Diamond Engagement Ring: $1,329.79 at Amazon (checked today)
  • Difference: the Pompeii3 Marquise Diamond Engagement Ring is $64.13 cheaper than the 4Ct Oval Solitaire Lab Grown Diamond Ring today
C
Certified 4Ct Oval Solitaire Diamond Engagement Ring 14k Gold Lab Grown

4Ct Oval Solitaire Lab Grown Diamond Ring

Certified 4Ct Oval Solitaire Diamond Engagement Ring 14k Gold Lab Grown

5(2 ratings)
$1,393.92at Bliss DiamondChecked 53 min ago
See all prices and details
Visit Bliss Diamond
Pros
  • One large 4 ct oval gives strong presence
  • Slim 2 mm solitaire band suits small hands and stacking
  • Choice of white, yellow or rose 14k gold
  • VS clarity range is a step above the Pompeii3 grade
  • Simple setting is easy to resize and repair
Cons
  • Only one carat weight and one stone shape
  • No platinum option
  • A 4 ct stone on a 2 mm band can feel top-heavy
  • Certificate of Assurance is not a full grading report
Pompeii3
Pompeii Certified 1.75-5.75Ct Marquise Diamond Engagement Ring 14k or Platinum Lab Grown

Pompeii3 Marquise Diamond Engagement Ring

Pompeii Certified 1.75-5.75Ct Marquise Diamond Engagement Ring 14k or Platinum Lab Grown

5(5 ratings)
$1,329.79at AmazonChecked 53 min ago
See all prices and details
Visit Amazon

Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • Marquise center with accent diamonds for more sparkle across the finger
  • Platinum option for a harder-wearing, whiter metal
  • Several carat weights to fit different budgets and tastes
  • Made in USA with a stated 180 day warranty
Cons
  • Marquise points can chip and need careful setting
  • Clarity range drops to SI1 on some stones
  • Multi-stone mountings are harder to resize and clean
  • Listed specs mix ring sizes and carat figures, so confirm the exact configuration

What separates them

4Ct Oval Solitaire Lab Grown Diamond RingPompeii3 Marquise Diamond Engagement Ring
Center stone shapeOval, a single elongated brilliant cutMarquise, a pointed elongated cut with accent stones
Stone countOne diamond, solitaireSeven stones including the center
Metal options14k white, yellow or rose gold14k gold or platinum
Carat weight rangeFixed at 4 ct totalOffered across roughly 1.75 to 5.75 ct
Band widthSlim 2 mm bandWider multi-stone mounting
Clarity gradeVS1-VS2 per the listing detailsVS2-SI1
CertificationCertificate of Assurance includedNo grading report named, lab grown stated
Origin of settingNot statedMade in USA in Pompeii3's own factory

Price history

$2,283.31$699.00
Nov 5Nov 12
  • 4Ct Oval Solitaire Lab Grown Diamond Ring: lowest $699.00 on Nov 5 at Amazon; $1,393.92 on Nov 12.
  • Pompeii3 Marquise Diamond Engagement Ring: lowest $1,329.79 on Nov 12 at Amazon.

Prices at every store

4Ct Oval Solitaire Lab Grown Diamond Ring

  • Bliss DiamondNew

    In stockReturn policy

    $1,393.92Checked 53 min ago
    Visit Bliss Diamond
  • EX3 DiamondNew

    In stock

    $1,393.92Free shippingChecked Nov 10
    Visit EX3 Diamond
  • ShopSimonNew

    In stock

    $1,393.92+ $4.95 shippingChecked Nov 10
    Visit ShopSimon
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $1,393.92Free shippingChecked 53 min ago
    Visit Amazon

Store links may earn us a commission.

All 7 stores and price history →

Pompeii3 Marquise Diamond Engagement Ring

  • Shop SimonNew

    In stock

    $1,487.31+ $4.95 shippingChecked 47 min ago
    Visit Shop Simon
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $1,329.79Free shippingChecked 53 min ago
    Visit Amazon
  • WalmartNew

    Out of stockSold by Pompeii3Returns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $1,814.99Free shippingChecked 47 min ago
    Visit Walmart

Store links may earn us a commission. Some prices via Klarna.

All 3 stores and price history →

Specs compared

Spec4Ct Oval Solitaire Lab Grown Diamond RingPompeii3 Marquise Diamond Engagement Ring
Total Carat Weight4 ct. t.w.—
Diamond ColorG-H—
Diamond ClarityVS-SI—
Diamond ShapeOval—
Metal14k white gold or 14k gold or 14k rose gold—
CertificateCertificate of Assurance included—
Diamond TypeCertified Lab Grown Diamond—
Ring StyleSolitaire—
metal_type—Platinum
karats—5.75 ct
ring_size—4.5
carats—2.75 ct
Show all 19 specsShow fewer specs
Spec4Ct Oval Solitaire Lab Grown Diamond RingPompeii3 Marquise Diamond Engagement Ring
color—Silver
Origin—Lab Grown
Ring Size (US)—7
Karat—14k
Rings—Engagement Ring
No. of Stones (pcs)—7
Stone—Diamond

What reviewers say

4Ct Oval Solitaire Lab Grown Diamond Ring

Buyers describe the ring as stunning and beautiful, and several say it made their dream come true. They also call it strong value for the price and quality.

What people mention
  • AppearancePraisedBuyers call the ring stunning and beautiful.
  • ValuePraisedOwners say the price and quality are the best they found.
  • SatisfactionPraisedBuyers say it made their dream come true.

Questions and answers

Which looks bigger, a 4 ct oval or a marquise of similar weight?
An oval spreads its weight across a wide, rounded face, so a 4 ct oval reads large and bright. A marquise of the same weight is longer and narrower, so it looks elongated rather than wide. The oval is the more classic choice; the marquise looks more dramatic.
Which ring is better for everyday wear?
The Bliss solitaire is the sturdier everyday choice. A single prong-set oval on a plain band has no exposed points to catch on clothing. Marquise stones have sharp tips that can chip, so the Pompeii3 ring needs more careful wear.
Is platinum worth stepping up to on the Pompeii3?
Platinum is denser and more scratch-resistant than 14k gold, and it holds prongs better over decades. If you plan to wear the ring daily for years, the platinum option is a real upgrade. If you prefer a warm gold tone, stay with 14k.
Which has the better diamond grade?
The Bliss ring lists VS1-VS2 clarity with G-H color. The Pompeii3 lists VS2-SI1 with G-H color, so its lower end allows more visible inclusions. On paper the Bliss stone is the cleaner grade.
Can I get a different size or carat weight?
The Pompeii3 comes in several carat weights and other ring sizes are available by phone. The Bliss ring is sold as a fixed 4 ct solitaire, so sizing is limited to the band.
Which is the better classic engagement ring?
The oval solitaire is the more timeless design and easier to pair with a wedding band. The marquise with accents is more ornate and stands out more. For a ring you will wear for decades, the solitaire is the safer pick.

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More comparisons

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Buying guides that pick them

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