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Marquise|Lab Grown|IGI

1.55ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG821644339

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG821644339

Diamond specifications and retailer prices

From $367 AUD
$258 USD
As of November 1, 2026
Save $1,227 AUD (77%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,594 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821644339 or 821644339. Listed at 3 retailers as of October 31, 2026, with prices from $367 to $1,594, a $1,227 spread on the same certified stone. Brilliant Earth lists it at $1,594. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821644339
Dimensions12.04 × 6.20 × 3.80 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.04 mm6.20 mm1.55 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821644339
Side View
Table 61.0%Crown 34.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,594 AUD|Low: $367 AUD|High: $2,036 AUD|Avg: $1,022 AUD|-21.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 3$367 AUD
Retailer 6$682 AUD
Retailer 5$725 AUD
Retailer 2$786 AUD
Retailer 4$1,440 AUD
Brilliant Earth$1,594 AUD

36 data points across 6 retailers

3 retailers$367 AUD to $1,594 AUD

A
Cheapest Retailer
-
$367 AUD
$258 USD
Final sale: no returns
A
Retailer 2
-
$786 AUD
£435 GBP
View
Most Expensive
B+
Brilliant Earth
21236128A · Oct 31
$1,594 AUD
$1,120 USD
View
2 more retailers have this diamond
Prices start from $367 AUDSave up to $1,227 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
1.55ct Marquise
$367 AUD