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Marquise|Lab Grown|IGI

5.25ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG754563791

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754563791

Diamond specifications and retailer prices

From £16,837 GBP
$22,560 USD
As of October 28, 2026
Save £18,861 GBP (53%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £35,698 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 5.25ct lab-grown marquise diamond

This 5.25ct lab-grown marquise sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754563791 or 754563791. Listed at 28 retailers as of October 28, 2026, with prices from £16,837 to £35,698, a £18,861 spread on the same certified stone. MOH London lists it at £35,698. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.25
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754563791
Dimensions17.60 × 9.08 × 5.65 mm
L/W Ratio1.94
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
17.60 mm9.08 mm5.25 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754563791
Side View
Table 62.0%Crown 35.8°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £35,698 GBP|Low: £15,395 GBP|High: £103,171 GBP|Avg: £36,596 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 14£16,837 GBP
Retailer 8£19,223 GBP
Retailer 5£19,920 GBP
Retailer 4£22,430 GBP
Retailer 16£23,818 GBP
Retailer 9£24,526 GBP
Retailer 10£25,115 GBP
Retailer 2£26,676 GBP
Retailer 15£27,221 GBP
Retailer 11£28,291 GBP
Retailer 18£31,585 GBP
Retailer 17£34,604 GBP
MOH London£35,698 GBP
Retailer 6£39,570 GBP
Retailer 12£47,320 GBP
Retailer 13£56,452 GBP
Retailer 7£77,581 GBP
Retailer 3£103,171 GBP

31 data points across 18 retailers

28 retailers£16,837 GBP to £35,698 GBP

A
Cheapest Retailer
-
£16,837 GBP
$22,560 USD
A
Retailer 2
-
£19,920 GBP
$26,690 USD
View
B+
Retailer 3
-
£21,579 GBP
$28,913 USD
View
Retailer 4
-
£21,579 GBP
$28,913 USD
View
Price last confirmed 30 days ago
Retailer 5
-
£21,579 GBP
$28,913 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
£22,430 GBP
$30,054 USD
View
B+
Retailer 7
-
£23,818 GBP
$31,914 USD
View
Retailer 8
-
£23,818 GBP
$31,914 USD
View
Price last confirmed 23 days ago
Retailer 9
-
£23,818 GBP
$31,914 USD
View
Price last confirmed 31 days ago
Retailer 10
-
£24,009 GBP
$32,169 USD
View
Price last confirmed 32 days ago
B+
Retailer 11
-
£24,526 GBP
$32,862 USD
View
B+
Retailer 12
-
£25,115 GBP
$33,651 USD
View
B+
Retailer 13
-
£26,676 GBP
$35,743 USD
View
Final sale: no returns
B+
Retailer 14
-
£27,221 GBP
$36,473 USD
View
Retailer 15
-
£27,249 GBP
$36,510 USD
View
Price last confirmed 32 days ago
Retailer 16
-
£27,629 GBP
$37,020 USD
View
Price last confirmed 28 days ago
Retailer 17
-
£27,629 GBP
$37,020 USD
View
Price last confirmed 20 days ago
B+
Retailer 18
-
£28,291 GBP
View
Retailer 19
-
£31,585 GBP
A$65,109 AUD
View
Price last confirmed 30 days ago
B
Retailer 20
-
£34,604 GBP
$46,366 USD
View
Most Expensive
B
MOH London
LG754563791 · Oct 29
£35,698 GBP
View
20 more retailers have this diamond
Prices start from £16,837 GBPSave up to £18,861 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
5.25ct Marquise
£16,837 GBP