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Marquise|Lab Grown|IGI

1.53ct E IF Marquise Lab Grown Diamond

VG • E/IF • IGI LG739511134

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG739511134

Diamond specifications and retailer prices

From £1,811 GBP
$2,427 USD
As of November 1, 2026
Save £622 GBP (26%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,433 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.53ct lab-grown marquise diamond

This 1.53ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG739511134 or 739511134. Listed at 2 retailers as of October 31, 2026, with prices from £1,811 to £2,433, a £622 spread on the same certified stone. Brilliant Earth lists it at £2,433. 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

1.53
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739511134
Dimensions11.87 × 5.93 × 3.76 mm
L/W Ratio2.00
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
11.87 mm5.93 mm1.53 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739511134
Side View
Table 59.0%Crown 36.1°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: £2,433 GBP|Low: £302 GBP|High: £2,858 GBP|Avg: £1,278 GBP|-14.9%
Brilliant Earth
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June 13, 2026
Retailer 2£302 GBP
Retailer 11£649 GBP
Retailer 10£757 GBP
Retailer 8£762 GBP
Retailer 3£784 GBP
Retailer 15£834 GBP
Retailer 4£971 GBP
Retailer 14£1,314 GBP
Retailer 6£1,370 GBP
Retailer 5£1,456 GBP
Retailer 9£1,611 GBP
Retailer 12£1,684 GBP
Retailer 7£1,709 GBP
Retailer 13£1,884 GBP
Brilliant Earth£2,433 GBP

48 data points across 15 retailers

2 retailers£1,811 GBP to £2,433 GBP

B+
Cheapest Retailer
-
£1,811 GBP
$2,427 USD
Most Expensive
B
Brilliant Earth
18206353A · Oct 31
£2,433 GBP
$3,260 USD
View
1 more retailer has this diamond
Prices start from £1,811 GBPSave up to £622 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.

B+
1.53ct Marquise
£1,811 GBP