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Marquise|Lab Grown|IGI

1.55ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG790654384

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790654384

Diamond specifications and retailer prices

From $634 CAD
$451 USD
As of October 27, 2026
Save $3,679 CAD (85%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $4,312 CAD at Brilliant Earth · As of October 28, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790654384 or 790654384. Listed at 28 retailers as of October 27, 2026, with prices from $634 to $4,312, a $3,679 spread on the same certified stone. Brilliant Earth lists it at $4,312. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790654384
Dimensions11.77 × 6.07 × 11.77 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.77 mm6.07 mm1.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790654384
Side View
Table 59.0%Crown 34.6°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
A+
Exceptional
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 27
Current: $4,312 CAD|Low: $708 CAD|High: $4,326 CAD|Avg: $2,069 CAD|-0.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 28, 2026
Retailer 13$708 CAD
Retailer 21$709 CAD
Retailer 19$863 CAD
Retailer 16$983 CAD
Retailer 8$1,054 CAD
Retailer 7$1,226 CAD
Retailer 17$1,251 CAD
Retailer 15$1,292 CAD
Retailer 3$1,304 CAD
Retailer 2$1,350 CAD
Retailer 6$1,569 CAD
Retailer 4$1,843 CAD
Retailer 20$2,113 CAD
Retailer 10$2,492 CAD
Retailer 11$2,571 CAD
Retailer 5$2,756 CAD
Retailer 9$2,802 CAD
Retailer 18$2,890 CAD
Retailer 14$3,336 CAD
Retailer 12$3,415 CAD
Brilliant Earth$4,312 CAD

30 data points across 21 retailers

28 retailers$634 CAD to $4,312 CAD

A+
Cheapest Retailer
-
$634 CAD
$451 USD
A
Retailer 2
-
$708 CAD
$504 USD
View
Final sale: no returns
A
Retailer 3
-
$709 CAD
$505 USD
View
A
Retailer 4
-
$785 CAD
$559 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$785 CAD
$559 USD
View
A
Retailer 6
-
$863 CAD
HK$4,800 HKD
View
A
Retailer 7
-
$983 CAD
$700 USD
View
A
Retailer 8
-
$1,054 CAD
$750 USD
View
A
Retailer 9
-
$1,226 CAD
$873 USD
View
A
Retailer 10
-
$1,251 CAD
€848 EUR
View
A
Retailer 11
-
$1,292 CAD
£724 GBP
View
A
Retailer 12
-
$1,304 CAD
A$1,428 AUD
View
A
Retailer 13
-
$1,350 CAD
ZAR 15,530 ZAR
View
A
Retailer 14
-
$1,569 CAD
$1,117 USD
View
A
Retailer 15
-
$1,843 CAD
A$2,019 AUD
View
Price last confirmed 9 days ago
A
Retailer 16
-
$1,901 CAD
$1,353 USD
View
B+
Retailer 17
-
$2,113 CAD
$1,504 USD
View
Price last confirmed 7 days ago
B+
Retailer 18
-
$2,492 CAD
SGD 2,397 SGD
View
B+
Retailer 19
-
$2,526 CAD
$1,798 USD
View
B+
Retailer 20
-
$2,571 CAD
$1,830 USD
View
B+
Retailer 21
-
$2,638 CAD
$1,878 USD
View
B+
Retailer 22
-
$2,756 CAD
$1,962 USD
View
B+
Retailer 23
-
$2,802 CAD
$1,995 USD
View
B+
Retailer 24
-
$2,890 CAD
£1,620 GBP
View
B+
Retailer 25
-
$3,336 CAD
$2,375 USD
View
Price last confirmed 21 days ago
B+
Retailer 26
-
$3,415 CAD
A$3,740 AUD
View
Price last confirmed 21 days ago
B+
Retailer 27
-
$3,443 CAD
£1,930 GBP
View
Most Expensive
B
Brilliant Earth
20474298A · Oct 28
$4,312 CAD
$3,070 USD
View
27 more retailers have this diamond
Prices start from $634 CADSave up to $3,679 CAD

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
$634 CAD