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Pompeii3 Marquise Diamond Engagement Ring vs Pompeii3 3Ct Cushion Lab Diamond Solitaire Ring

Both are lab-grown diamond engagement rings from the same maker, so build quality and materials are comparable. The marquise multi-stone ring is the bolder, more elaborate choice, with a fancy-cut center stone flanked by accent diamonds in a wider band. The cushion solitaire is the cleaner, more classic look, with one large stone and a simple setting that is easier to resize and less likely to snag. Choose the marquise if you want a statement ring; choose the solitaire if you want a timeless single-stone design.

  • Choose the Pompeii3 marquise ring if you want a fancy-cut center stone with accent diamonds and a more elaborate, statement look.
  • Choose the Pompeii3 cushion solitaire if you want one large center stone in a clean, classic setting that is easy to wear every day.

Prices

  • Pompeii3 Marquise Diamond Engagement Ring: $1,329.79 at Amazon (checked today)
  • Pompeii3 3Ct Cushion Lab Diamond Solitaire Ring: $1,329.79 at Shop Simon (checked today)
  • Difference: both cost the same today
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

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Pros
  • Fancy marquise center stone stands out from round and square cuts
  • Accent diamonds add sparkle across the band
  • Available in 14k gold or platinum
  • Made in the USA with a 180-day warranty
Cons
  • Pointed tips and multiple prongs can snag clothing
  • Multi-stone bands are harder to resize
  • Only size 4.5 listed; other sizes require a call
  • Lower clarity range than the solitaire
Pompeii3
Pompeii3 Certified 3Ct Cushion Diamond Solitaire Engagement Ring 14k Gold Pt Lab Grown

Pompeii3 3Ct Cushion Lab Diamond Solitaire Ring

Pompeii3 Certified 3Ct Cushion Diamond Solitaire Engagement Ring 14k Gold Pt Lab Grown

$1,329.79at Shop SimonChecked 54 min ago
See all prices and details
Visit Shop Simon

Store links may earn us a commission. Price via Klarna.

Pros
  • Single 3 ct cushion stone gives a large, clean focal point
  • Solitaire setting is simple to resize and repair
  • VS1-VS2 clarity is a step up
  • Classic design that suits everyday wear
Cons
  • Plain band offers less sparkle than a multi-stone design
  • Cushion cut shows inclusions more readily than some cuts
  • Only size 8 listed
  • Less distinctive than a fancy marquise

What separates them

Pompeii3 Marquise Diamond Engagement RingPompeii3 3Ct Cushion Lab Diamond Solitaire Ring
Center stone shapeMarquise cut, a long pointed fancy shapeCushion cut, a soft square shape
Setting styleMulti-stone with accent diamonds along the bandSolitaire with a single center stone
Main stone weightCenter around 2.75 ct within a 1.75-5.75 ct range3.0 ct center stone
Total stonesSeven diamondsOne center diamond
Metal options14k gold or platinum14k gold, white gold or platinum
Clarity gradeVS2-SI1VS1-VS2
Ring size offeredSize 4.5, other sizes by phoneSize 8
Everyday wearPointed marquise tips and prongs can catch on fabricLow-profile solitaire is less prone to snagging

Price history

  • Pompeii3 Marquise Diamond Engagement Ring: lowest $1,329.79 on Nov 12 at Amazon.
  • Pompeii3 3Ct Cushion Lab Diamond Solitaire Ring: lowest $1,329.79 on Nov 12 at Shop Simon.

Prices at every store

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 →

Pompeii3 3Ct Cushion Lab Diamond Solitaire Ring

  • Shop SimonNew

    In stock

    $1,329.79+ $4.95 shippingChecked 54 min ago
    Visit Shop Simon
  • Kohl'sNew

    In stock

    $1,640.00Free shippingChecked 54 min ago
    Visit Kohl's

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

All 2 stores and price history →

Specs compared

SpecPompeii3 Marquise Diamond Engagement RingPompeii3 3Ct Cushion Lab Diamond Solitaire Ring
colorSilverWhite, Multicolor
OriginLab GrownLab Grown
Ring Size (US)78
Karat14k14k
RingsEngagement RingSolitaire Ring, Engagement Ring
StoneDiamondDiamond
metal_typePlatinum—
karats5.75 ct—
ring_size4.5—
carats2.75 ct—
No. of Stones (pcs)7—
Diamond Clarity—VS (1-2)
Show all 15 specsShow fewer specs
SpecPompeii3 Marquise Diamond Engagement RingPompeii3 3Ct Cushion Lab Diamond Solitaire Ring
Material—Platinum, White Gold, Gold
Gender—Female
Carat (Main stone)—3.0

Questions and answers

Which ring looks bigger on the hand?
The marquise spreads its weight across a long shape, so it covers more finger length. The cushion solitaire concentrates 3 ct in a square outline, which reads as a broader, deeper stone.
Which is better for everyday wear?
The cushion solitaire. A single low setting has fewer prongs and no pointed tips, so it snags less and is easier to maintain.
Which has better diamond quality?
The solitaire is graded VS1-VS2, while the marquise is VS2-SI1. Both are eye-clean grades, but the solitaire sits in a tighter, higher range.
Can either ring be resized?
A plain solitaire band resizes more easily. Multi-stone bands with accent diamonds are harder to resize without disturbing the setting, so confirm sizing before you order.
Is the marquise ring worth stepping up to over the solitaire?
Only if you want a fancy-cut, multi-stone look. If you prefer a classic single stone that is simpler to wear and maintain, the solitaire is the safer choice.
Do both come from the same maker?
Yes. Both are Pompeii3 lab-grown diamond rings made in the USA, with a 180-day warranty and a gift box.

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More comparisons

  • Pompeii Certified 1.75-5.75Ct Marquise Diamond Engagement Ring 14k or Platinum Lab Grown vs Pompeii3 Certified 2Ct Solitaire Diamond Cathedral Engagement Ring White Gold Lab Grown
  • Certified 4Ct Oval Solitaire Diamond Engagement Ring 14k Gold Lab Grown vs Pompeii Certified 1.75-5.75Ct Marquise Diamond Engagement Ring 14k or Platinum Lab Grown
  • Pompeii3 Certified 3Ct Cushion Diamond Solitaire Engagement Ring 14k Gold Pt Lab Grown vs Pompeii3 Certified 2Ct Solitaire Diamond Cathedral Engagement Ring White Gold Lab Grown
  • Certified 4Ct Oval Solitaire Diamond Engagement Ring 14k Gold Lab Grown vs Pompeii3 Certified 3Ct Cushion Diamond Solitaire Engagement Ring 14k Gold Pt Lab Grown

Buying guides that pick them

  • Best lab-grown diamond engagement rings under $1,500