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Marquise|Lab Grown|IGI

1.24ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG835629196

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG835629196

Diamond specifications and retailer prices

From $283 AUD
As of November 6, 2026
3 retailers carry this diamond
Most expensive: $1,771 AUD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.24ct lab-grown marquise diamond

This 1.24ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG835629196 or 835629196. Listed at 3 retailers as of November 6, 2026. 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

1.24
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835629196
Dimensions11.31 × 5.68 × 3.47 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.31 mm5.68 mm1.24 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835629196
Side View
Table 59.0%Crown 35.1°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 61.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $1,771 AUD|Low: $283 AUD|High: $1,828 AUD|Avg: $883 AUD|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 27, 2026
Retailer 2$283 AUD
Retailer 5$570 AUD
Retailer 3$580 AUD
Retailer 4$667 AUD
Brilliant Earth$1,771 AUD

30 data points across 5 retailers

3 retailers

A
Cheapest Retailer
-
$283 AUD
Final sale: no returns
Retailer 2
-
$580 AUD
View
Price last confirmed 10 days ago
Most Expensive
Brilliant Earth
21339582A · Oct 26
$1,771 AUD
$1,240 USD
View
Price last confirmed 10 days ago
2 more retailers have this diamond
Prices start from $283 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
1.24ct Marquise
$283 AUD