Marquise|Lab Grown|IGI

1.55ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG813640674

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG813640674

Diamond specifications and retailer prices

From $610 USD
As of November 6, 2026
Save $4,810 USD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,420 USD at Do Amore Diamonds · As of November 6, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG813640674 or 813640674. Listed at 16 retailers as of November 6, 2026, with prices from $610 to $5,420, a $4,810 spread on the same certified stone. Do Amore Diamonds lists it at $5,420. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813640674
Dimensions12.23 × 6.02 × 3.77 mm
L/W Ratio2.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.23 mm6.02 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813640674
Side View
Table 58.0%Crown 32.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A+
Exceptional
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: Nov 6
Current: $5,420 USD|Low: $606 USD|High: $6,170 USD|Avg: $2,074 USD|-12.2%
Do Amore Diamonds
Retailer 2
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Retailer 11
Retailer 12
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Retailer 17
November 6, 2026
Retailer 5$610 USD
Retailer 16$684 USD
Retailer 14$820 USD
Retailer 2$878 USD
Retailer 17$908 USD
Retailer 9$963 USD
Retailer 15$972 USD
Retailer 7$1,159 USD
Retailer 4$1,878 USD
Retailer 10$1,973 USD
Retailer 3$2,197 USD
Retailer 8$2,675 USD
Retailer 13$2,770 USD
Retailer 6$2,826 USD
Retailer 11$3,282 USD
Retailer 12$3,489 USD
Do Amore Diamonds$5,420 USD

40 data points across 17 retailers

16 retailers$610 USD to $5,420 USD

A+
Cheapest Retailer
-
$610 USD
A
Retailer 2
-
$684 USD
View
A
Retailer 3
-
$820 USD
View
A
Retailer 4
-
$878 USD
View
A
Retailer 5
-
$908 USD
View
A
Retailer 6
-
$972 USD
View
A
Retailer 7
-
$1,159 USD
View
B+
Retailer 8
-
$1,878 USD
View
B+
Retailer 9
-
$1,973 USD
View
B+
Retailer 10
-
$2,197 USD
View
Retailer 11
-
$2,675 USD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$2,770 USD
View
B+
Retailer 13
-
$2,826 USD
View
B
Retailer 14
-
$3,282 USD
View
B+
Retailer 15
-
$3,489 USD
View
Most Expensive
B
Do Amore Diamonds
27-2EEA863A8 · Nov 6
$5,420 USD
View
15 more retailers have this diamond
Prices start from $610 USDSave up to $4,810 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
$610 USD