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Marquise|Lab Grown|IGI

1.03ct G SI1 Marquise Lab Grown Diamond

VG • G/SI1 • IGI LG512224087

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG512224087

Diamond specifications and retailer prices

From $1,397 AUD
$960 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: $1,397 AUD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG512224087 or 512224087. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.03
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512224087
Dimensions10.00 × 5.40 × 3.02 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.00 mm5.40 mm1.03 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512224087
Side View
Table 64.0%Crown 38.5°Girdle: STK-THKPavilion 34.7°Culet: NoneDepth 55.9%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 6
Current: $1,397 AUD|Low: $755 AUD|High: $3,959 AUD|Avg: $2,181 AUD|-12.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
July 1, 2026
Retailer 3$755 AUD
Retailer 9$1,039 AUD
Retailer 7$1,354 AUD
Brilliant Earth$1,397 AUD
Retailer 8$1,746 AUD
Retailer 4$1,792 AUD
Retailer 6$2,359 AUD
Retailer 5$2,668 AUD
Retailer 10$2,992 AUD
Retailer 2$3,388 AUD

71 data points across 10 retailers

1 retailer

C
Brilliant Earth
19748688A · Nov 6
$1,397 AUD
$960 USD
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C
1.03ct Marquise
$1,397 AUD