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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 $255 USD
As of October 27, 2026
Save $1,585 USD (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,840 USD 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 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 27, 2026, with prices from $255 to $1,840, a $1,585 spread on the same certified stone. Brilliant Earth lists it at $1,840. 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
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $1,840 USD|Low: $247 USD|High: $2,190 USD|Avg: $749 USD|-8.5%
Brilliant Earth
Retailer 2
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Retailer 4
Retailer 5
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Retailer 7
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Retailer 21
October 29, 2026
Retailer 10$255 USD
Retailer 11$284 USD
Retailer 6$296 USD
Retailer 3$316 USD
Retailer 5$316 USD
Retailer 15$372 USD
Retailer 20$475 USD
Retailer 17$528 USD
Retailer 19$543 USD
Retailer 7$545 USD
Retailer 18$599 USD
Retailer 16$656 USD
Retailer 21$737 USD
Retailer 12$971 USD
Retailer 8$987 USD
Retailer 2$994 USD
Retailer 4$1,016 USD
Retailer 14$1,018 USD
Retailer 9$1,068 USD
Retailer 13$1,274 USD
Brilliant Earth$1,840 USD

26 data points across 21 retailers

22 retailers$255 USD to $1,840 USD

A
Cheapest Retailer
-
$255 USD
A
Retailer 2
-
$284 USD
View
Final sale: no returns
A
Retailer 3
-
$296 USD
View
A
Retailer 4
-
$316 USD
View
A
Retailer 5
-
$316 USD
View
A
Retailer 6
-
$372 USD
£293 GBP
View
A
Retailer 7
-
$475 USD
View
A
Retailer 8
-
$528 USD
View
A
Retailer 9
-
$543 USD
ZAR 8,776 ZAR
View
A
Retailer 10
-
$545 USD
View
A
Retailer 11
-
$599 USD
£472 GBP
View
A
Retailer 12
-
$656 USD
View
B+
Retailer 13
-
$737 USD
A$1,134 AUD
View
B+
Retailer 14
-
$971 USD
View
B+
Retailer 15
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$987 USD
View
B+
Retailer 16
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$994 USD
A$1,529 AUD
View
B+
Retailer 17
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$1,016 USD
View
B+
Retailer 18
-
$1,018 USD
SGD 1,375 SGD
View
B+
Retailer 19
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$1,068 USD
View
B
Retailer 20
-
$1,244 USD
View
B
Retailer 21
-
$1,274 USD
£1,003 GBP
View
Most Expensive
B
Brilliant Earth
21636411A · Oct 28
$1,840 USD
View
21 more retailers have this diamond
Prices start from $255 USDSave up to $1,585 USD

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
$255 USD