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Marquise|Lab Grown|IGI

1.55ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG818682574

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818682574

Diamond specifications and retailer prices

From $363 AUD
$255 USD
As of October 30, 2026
Save $1,473 AUD (80%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,836 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818682574 or 818682574. Listed at 22 retailers as of October 30, 2026, with prices from $363 to $1,836, a $1,473 spread on the same certified stone. Brilliant Earth lists it at $1,836. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818682574
Dimensions12.04 × 6.09 × 3.80 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.04 mm6.09 mm1.55 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818682574
Side View
Table 60.0%Crown 35°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.4%

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: Oct 30
Current: $1,836 AUD|Low: $352 AUD|High: $3,118 AUD|Avg: $1,055 AUD|-41.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 11$363 AUD
Retailer 12$404 AUD
Retailer 7$421 AUD
Retailer 4$450 AUD
Retailer 6$450 AUD
Retailer 2$526 AUD
Retailer 21$676 AUD
Retailer 19$752 AUD
Retailer 20$773 AUD
Retailer 8$776 AUD
Retailer 13$859 AUD
Retailer 18$934 AUD
Retailer 3$1,049 AUD
Retailer 15$1,147 AUD
Retailer 9$1,405 AUD
Retailer 16$1,415 AUD
Retailer 5$1,446 AUD
Retailer 14$1,449 AUD
Retailer 10$1,520 AUD
Retailer 17$1,813 AUD
Brilliant Earth$1,836 AUD

28 data points across 21 retailers

22 retailers$363 AUD to $1,836 AUD

A
Cheapest Retailer
-
$363 AUD
$255 USD
A
Retailer 2
-
$404 AUD
$284 USD
View
Final sale: no returns
A
Retailer 3
-
$421 AUD
$296 USD
View
A
Retailer 4
-
$450 AUD
$316 USD
View
A
Retailer 5
-
$450 AUD
$316 USD
View
A
Retailer 6
-
$526 AUD
£291 GBP
View
A
Retailer 7
-
$676 AUD
$475 USD
View
A
Retailer 8
-
$752 AUD
$528 USD
View
A
Retailer 9
-
$773 AUD
ZAR 8,776 ZAR
View
A
Retailer 10
-
$776 AUD
$545 USD
View
A
Retailer 11
-
$859 AUD
£475 GBP
View
A
Retailer 12
-
$934 AUD
$656 USD
View
B+
Retailer 13
-
$1,049 AUD
View
B+
Retailer 14
-
$1,147 AUD
$806 USD
View
B+
Retailer 15
-
$1,405 AUD
$987 USD
View
B+
Retailer 16
-
$1,415 AUD
View
B+
Retailer 17
-
$1,446 AUD
$1,016 USD
View
B+
Retailer 18
-
$1,449 AUD
SGD 1,375 SGD
View
B
Retailer 19
-
$1,520 AUD
$1,068 USD
View
B
Retailer 20
-
$1,771 AUD
$1,244 USD
View
B
Retailer 21
-
$1,813 AUD
£1,003 GBP
View
Most Expensive
B
Brilliant Earth
21636411A · Oct 31
$1,836 AUD
$1,290 USD
View
21 more retailers have this diamond
Prices start from $363 AUDSave up to $1,473 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
$363 AUD