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Marquise|Lab Grown|IGI

2.03ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG851696742

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG851696742

Diamond specifications and retailer prices

From £210 GBP
As of November 1, 2026
Save £964 GBP (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,174 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.03ct lab-grown marquise diamond

This 2.03ct lab-grown marquise sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG851696742 or 851696742. Listed at 11 retailers as of October 31, 2026, with prices from £210 to £1,174, a £964 spread on the same certified stone. Brilliant Earth lists it at £1,174. 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

2.03
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851696742
Dimensions13.48 × 6.43 × 4.02 mm
L/W Ratio2.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.48 mm6.43 mm2.03 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851696742
Side View
Table 60.0%Crown 38°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
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 1
Current: £1,174 GBP|Low: £202 GBP|High: £1,984 GBP|Avg: £644 GBP|-40.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9£202 GBP
Retailer 5£210 GBP
Retailer 2£280 GBP
Retailer 12£308 GBP
Retailer 7£424 GBP
Retailer 11£465 GBP
Retailer 8£720 GBP
Retailer 10£723 GBP
Retailer 4£759 GBP
Retailer 6£897 GBP
Retailer 3£989 GBP
Brilliant Earth£1,174 GBP

6 data points across 12 retailers

11 retailers£210 GBP to £1,174 GBP

A
Cheapest Retailer
-
£210 GBP
A
Retailer 2
-
£280 GBP
View
B+
Retailer 3
-
£308 GBP
View
A
Retailer 4
-
£424 GBP
View
A
Retailer 5
-
£465 GBP
View
B+
Retailer 6
-
£720 GBP
View
B+
Retailer 7
-
£723 GBP
View
B+
Retailer 8
-
£759 GBP
View
B+
Retailer 9
-
£897 GBP
View
B
Retailer 10
-
£989 GBP
View
Most Expensive
B
Brilliant Earth
22347767A · Oct 31
£1,174 GBP
$1,580 USD
View
10 more retailers have this diamond
Prices start from £210 GBPSave up to £964 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
2.03ct Marquise
£210 GBP