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Marquise|Lab Grown|IGI

2.52ct F SI1 Marquise Lab Grown Diamond

EX • F/SI1 • IGI LG828668770

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG828668770

Diamond specifications and retailer prices

From £268 GBP
$359 USD
As of November 2, 2026
Save £1,028 GBP (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,343 GBP at Michael Trio · As of October 13, 2026
View at Michael Trio

About this 2.52ct lab-grown marquise diamond

This 2.52ct lab-grown marquise sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG828668770 or 828668770. Listed at 10 retailers as of November 1, 2026, with a 384% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.52
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828668770
Dimensions14.47 × 7.25 × 4.30 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.47 mm7.25 mm2.52 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828668770
Side View
Table 62.0%Crown 34°Girdle: THN-MEDPavilion 40.3°Culet: NoneDepth 59.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,343 GBP|Low: £259 GBP|High: £1,357 GBP|Avg: £775 GBP|+2.7%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9£268 GBP
Retailer 7£310 GBP
Retailer 5£412 GBP
Retailer 4£534 GBP
Retailer 8£607 GBP
Retailer 3£972 GBP
Retailer 6£972 GBP
Retailer 10£1,066 GBP
Retailer 2£1,296 GBP
Michael Trio£1,343 GBP

27 data points across 10 retailers

10 retailers£268 GBP to £1,296 GBP

A
Cheapest Retailer
-
£268 GBP
$359 USD
A
Retailer 2
-
£310 GBP
$416 USD
View
Retailer 3
-
£412 GBP
View
Price last confirmed 16 days ago
Retailer 4
-
£534 GBP
€682 EUR
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£607 GBP
$815 USD
View
B
Retailer 6
-
£972 GBP
$1,305 USD
View
B
Retailer 7
-
£972 GBP
$1,305 USD
View
B
Retailer 8
-
£1,066 GBP
$1,431 USD
View
B
Retailer 9
-
£1,296 GBP
View
Most Expensive
Michael Trio
1906561796 · Oct 13
£1,343 GBP
SGD 2,436 SGD
View
Price last confirmed 20 days ago
9 more retailers have this diamond
Prices start from £268 GBPSave up to £1,028 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
2.52ct Marquise
£268 GBP