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Marquise|Lab Grown|IGI

1.55ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG815650355

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG815650355

Diamond specifications and retailer prices

From $273 USD
As of October 23, 2026
Save $2,157 USD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,430 USD at Do Amore Diamonds · As of October 27, 2026
View at Do Amore Diamonds

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 LG815650355 or 815650355. Listed at 22 retailers as of October 23, 2026, with prices from $273 to $2,430, a $2,157 spread on the same certified stone. Do Amore Diamonds lists it at $2,430. 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 angle33.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815650355
Dimensions12.38 × 5.96 × 3.72 mm
L/W Ratio2.08
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.38 mm5.96 mm1.55 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815650355
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 40.6°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 23
Current: $2,430 USD|Low: $262 USD|High: $2,430 USD|Avg: $922 USD
Do Amore Diamonds
Retailer 2
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Retailer 18
October 29, 2026
Retailer 5$273 USD
Retailer 3$305 USD
Retailer 7$339 USD
Retailer 16$430 USD
Retailer 12$438 USD
Retailer 15$633 USD
Retailer 11$652 USD
Retailer 2$688 USD
Retailer 10$798 USD
Retailer 14$878 USD
Retailer 17$1,041 USD
Retailer 6$1,044 USD
Retailer 8$1,203 USD
Retailer 18$1,303 USD
Retailer 4$1,425 USD
Retailer 9$1,463 USD
Retailer 13$1,501 USD
Do Amore Diamonds$2,430 USD

41 data points across 18 retailers

22 retailers$273 USD to $2,430 USD

A
Cheapest Retailer
-
$273 USD
A
Retailer 2
-
$317 USD
View
A
Retailer 3
-
$339 USD
View
A
Retailer 4
-
$426 USD
View
A
Retailer 5
-
$430 USD
View
A
Retailer 6
-
$438 USD
£345 GBP
View
B+
Retailer 7
-
$452 USD
View
A
Retailer 8
-
$633 USD
ZAR 10,223 ZAR
View
A
Retailer 9
-
$652 USD
£513 GBP
View
B+
Retailer 10
-
$688 USD
A$1,058 AUD
View
B+
Retailer 11
-
$798 USD
View
B+
Retailer 12
-
$878 USD
A$1,351 AUD
View
B
Retailer 13
-
$1,041 USD
View
B+
Retailer 14
-
$1,044 USD
A$1,606 AUD
View
Price last confirmed 21 days ago
B
Retailer 15
-
$1,203 USD
View
B
Retailer 16
-
$1,303 USD
View
B
Retailer 17
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$1,367 USD
View
B
Retailer 18
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$1,425 USD
View
B
Retailer 19
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$1,463 USD
£1,152 GBP
View
B
Retailer 20
-
$1,501 USD
£1,182 GBP
View
B
Retailer 21
-
$2,015 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Do Amore Diamonds
27-93294C56B · Oct 27
$2,430 USD
View
21 more retailers have this diamond
Prices start from $273 USDSave up to $2,157 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
$273 USD