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Marquise|Lab Grown|IGI

1.23ct G VVS2 Marquise Lab Grown Diamond

EX • G/VVS2 • IGI LG842607158

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG842607158

Diamond specifications and retailer prices

From $291 AUD
$205 USD
As of October 28, 2026
Save $1,386 AUD (83%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,678 AUD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.23ct lab-grown marquise diamond

This 1.23ct lab-grown marquise sits in the classic one-carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG842607158 or 842607158. Listed at 3 retailers as of October 28, 2026, with prices from $291 to $1,678, a $1,386 spread on the same certified stone. Brilliant Earth lists it at $1,678. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
G
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842607158
Dimensions11.28 × 5.49 × 3.53 mm
L/W Ratio2.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.28 mm5.49 mm1.23 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842607158
Side View
Table 63.0%Crown 36.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 64.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $1,678 AUD|Low: $291 AUD|High: $1,678 AUD|Avg: $1,022 AUD
Brilliant Earth
Retailer 2
Retailer 3
October 28, 2026
Retailer 3$291 AUD
Retailer 2$606 AUD
Brilliant Earth$1,678 AUD

19 data points across 3 retailers

3 retailers$291 AUD to $1,678 AUD

A
Cheapest Retailer
-
$291 AUD
$205 USD
Final sale: no returns
A
Retailer 2
-
$606 AUD
£336 GBP
View
Most Expensive
B
Brilliant Earth
21743911A · Oct 28
$1,678 AUD
$1,180 USD
View
2 more retailers have this diamond
Prices start from $291 AUDSave up to $1,386 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
1.23ct Marquise
$291 AUD