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Marquise|Lab Grown|IGI

1.55ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG788617192

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG788617192

Diamond specifications and retailer prices

From $1,372 AUD
$964 USD
As of October 30, 2026
Save $4,265 AUD (76%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $5,637 AUD at Brilliant Earth · As of October 30, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG788617192 or 788617192. Listed at 26 retailers as of October 30, 2026, with prices from $1,372 to $5,637, a $4,265 spread on the same certified stone. Brilliant Earth lists it at $5,637. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788617192
Dimensions11.90 × 6.19 × 3.75 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.90 mm6.19 mm1.55 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788617192
Side View
Table 59.0%Crown 33.3°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.6%

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: $5,637 AUD|Low: $1,372 AUD|High: $6,194 AUD|Avg: $3,195 AUD|-0.3%
Brilliant Earth
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
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Retailer 21
Retailer 22
Retailer 23
October 31, 2026
Retailer 7$1,372 AUD
Retailer 22$1,493 AUD
Retailer 17$1,535 AUD
Retailer 4$1,592 AUD
Retailer 6$1,592 AUD
Retailer 5$1,838 AUD
Retailer 3$1,840 AUD
Retailer 21$1,844 AUD
Retailer 9$1,994 AUD
Retailer 10$2,278 AUD
Retailer 2$2,454 AUD
Retailer 20$2,652 AUD
Retailer 16$2,672 AUD
Retailer 19$2,925 AUD
Retailer 13$3,044 AUD
Retailer 15$4,404 AUD
Retailer 8$4,474 AUD
Retailer 23$4,731 AUD
Retailer 11$5,169 AUD
Retailer 12$5,340 AUD
Retailer 18$5,426 AUD
Retailer 14$5,541 AUD
Brilliant Earth$5,637 AUD

32 data points across 23 retailers

26 retailers$1,372 AUD to $5,637 AUD

A
Cheapest Retailer
-
$1,372 AUD
$964 USD
A
Retailer 2
-
$1,493 AUD
$1,049 USD
View
A
Retailer 3
-
$1,535 AUD
$1,078 USD
View
Final sale: no returns
Retailer 4
-
$1,592 AUD
$1,118 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$1,592 AUD
$1,118 USD
View
A
Retailer 6
-
$1,838 AUD
$1,291 USD
View
A
Retailer 7
-
$1,840 AUD
HK$10,100 HKD
View
A
Retailer 8
-
$1,844 AUD
$1,295 USD
View
A
Retailer 9
-
$1,994 AUD
$1,401 USD
View
A
Retailer 10
-
$2,278 AUD
$1,600 USD
View
A
Retailer 11
-
$2,454 AUD
£1,357 GBP
View
B+
Retailer 12
-
$2,652 AUD
€1,774 EUR
View
B+
Retailer 13
-
$2,672 AUD
View
B+
Retailer 14
-
$2,925 AUD
ZAR 33,197 ZAR
View
B+
Retailer 15
-
$3,044 AUD
$2,138 USD
View
Retailer 16
-
$3,429 AUD
$2,409 USD
View
Price last confirmed 9 days ago
B+
Retailer 17
-
$4,404 AUD
£2,436 GBP
View
B
Retailer 18
-
$4,474 AUD
$3,143 USD
View
B+
Retailer 19
-
$4,731 AUD
$3,323 USD
View
B+
Retailer 20
-
$4,753 AUD
$3,339 USD
View
B
Retailer 21
-
$5,169 AUD
$3,631 USD
View
B
Retailer 22
-
$5,340 AUD
SGD 5,069 SGD
View
B
Retailer 23
-
$5,426 AUD
£3,001 GBP
View
B
Retailer 24
-
$5,541 AUD
$3,892 USD
View
Retailer 25
-
$5,637 AUD
$3,960 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
20474067A · Oct 30
$5,637 AUD
$3,960 USD
View
25 more retailers have this diamond
Prices start from $1,372 AUDSave up to $4,265 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
$1,372 AUD