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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 $403 AUD
As of November 1, 2026
Save $1,854 AUD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,257 AUD 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 $403 to $2,257, a $1,854 spread on the same certified stone. Brilliant Earth lists it at $2,257. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,257 AUD|Low: $389 AUD|High: $3,814 AUD|Avg: $1,238 AUD|-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$389 AUD
Retailer 5$403 AUD
Retailer 2$539 AUD
Retailer 12$593 AUD
Retailer 7$816 AUD
Retailer 11$894 AUD
Retailer 8$1,384 AUD
Retailer 10$1,390 AUD
Retailer 4$1,458 AUD
Retailer 6$1,724 AUD
Retailer 3$1,901 AUD
Brilliant Earth$2,257 AUD

6 data points across 12 retailers

11 retailers$403 AUD to $2,257 AUD

A
Cheapest Retailer
-
$403 AUD
A
Retailer 2
-
$539 AUD
View
B+
Retailer 3
-
$593 AUD
View
A
Retailer 4
-
$816 AUD
View
A
Retailer 5
-
$894 AUD
View
B+
Retailer 6
-
$1,384 AUD
View
B+
Retailer 7
-
$1,390 AUD
View
B+
Retailer 8
-
$1,458 AUD
View
B+
Retailer 9
-
$1,724 AUD
View
B
Retailer 10
-
$1,901 AUD
View
Most Expensive
B
Brilliant Earth
22347767A · Oct 31
$2,257 AUD
$1,580 USD
View
10 more retailers have this diamond
Prices start from $403 AUDSave up to $1,854 AUD

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
$403 AUD