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Marquise|Lab Grown|IGI

3.03ct E IF Marquise Lab Grown Diamond

GD • E/IF • IGI LG744510973

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG744510973

Diamond specifications and retailer prices

From £3,494 GBP
$4,653 USD
As of October 27, 2026
Save £3,377 GBP (49%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £6,871 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.03ct lab-grown marquise diamond

This 3.03ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG744510973 or 744510973. Listed at 2 retailers as of October 27, 2026, with prices from £3,494 to £6,871, a £3,377 spread on the same certified stone. Brilliant Earth lists it at £6,871. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.03
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744510973
Dimensions15.22 × 7.52 × 4.62 mm
L/W Ratio2.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
15.22 mm7.52 mm3.03 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744510973
Side View
Table 60.0%Crown 33.9°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 61.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: £6,871 GBP|Low: £2,455 GBP|High: £12,290 GBP|Avg: £6,496 GBP|-4.1%
Brilliant Earth
Retailer 2
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September 27, 2026
Retailer 14£2,865 GBP
Retailer 7£3,173 GBP
Retailer 2£3,494 GBP
Retailer 9£3,606 GBP
Retailer 8£3,651 GBP
Retailer 6£4,270 GBP
Retailer 11£4,694 GBP
Retailer 4£5,227 GBP
Retailer 5£5,516 GBP
Brilliant Earth£6,871 GBP
Retailer 10£7,468 GBP
Retailer 3£9,063 GBP
Retailer 12£9,484 GBP
Retailer 13£11,509 GBP

61 data points across 14 retailers

2 retailers£3,494 GBP to £6,871 GBP

A
Cheapest Retailer
-
£3,494 GBP
$4,653 USD
Final sale: no returns
Most Expensive
B
Brilliant Earth
18206532A · Oct 28
£6,871 GBP
$9,150 USD
View
1 more retailer has this diamond
Prices start from £3,494 GBPSave up to £3,377 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.03ct Marquise
£3,494 GBP