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Marquise|Lab Grown|IGI

1.55ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG732520360

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG732520360

Diamond specifications and retailer prices

From $617 USD
As of November 6, 2026
Save $4,863 USD (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,480 USD at Do Amore Diamonds · As of November 5, 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 LG732520360 or 732520360. Listed at 18 retailers as of November 5, 2026, with prices from $617 to $5,480, a $4,863 spread on the same certified stone. Do Amore Diamonds lists it at $5,480. 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 angle35.7°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG732520360
Dimensions11.65 × 6.03 × 3.71 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.65 mm6.03 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG732520360
Side View
Table 60.0%Crown 35.7°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 61.5%

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: Nov 6
Current: $5,480 USD|Low: $604 USD|High: $5,770 USD|Avg: $1,984 USD|-5.0%
Do Amore Diamonds
Retailer 2
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Retailer 18
November 6, 2026
Retailer 15$617 USD
Retailer 5$691 USD
Retailer 10$738 USD
Retailer 17$885 USD
Retailer 7$890 USD
Retailer 9$920 USD
Retailer 16$1,173 USD
Retailer 2$1,279 USD
Retailer 8$1,337 USD
Retailer 18$1,899 USD
Retailer 11$1,994 USD
Retailer 4$2,131 USD
Retailer 3$2,222 USD
Retailer 6$2,675 USD
Retailer 14$2,770 USD
Retailer 12$3,319 USD
Retailer 13$3,532 USD
Do Amore Diamonds$5,480 USD

31 data points across 18 retailers

18 retailers$617 USD to $5,480 USD

A
Cheapest Retailer
-
$617 USD
A
Retailer 2
-
$691 USD
View
A
Retailer 3
-
$738 USD
View
Final sale: no returns
A
Retailer 4
-
$885 USD
View
A
Retailer 5
-
$890 USD
View
A
Retailer 6
-
$920 USD
View
A
Retailer 7
-
$1,173 USD
View
A
Retailer 8
-
$1,279 USD
View
A
Retailer 9
-
$1,337 USD
View
B+
Retailer 10
-
$1,899 USD
View
B+
Retailer 11
-
$1,994 USD
View
B+
Retailer 12
-
$2,131 USD
View
B+
Retailer 13
-
$2,222 USD
View
Retailer 14
-
$2,675 USD
View
Price last confirmed 9 days ago
B+
Retailer 15
-
$2,770 USD
View
B
Retailer 16
-
$3,319 USD
View
B+
Retailer 17
-
$3,532 USD
View
Most Expensive
B
Do Amore Diamonds
27-307F9C2DE · Nov 5
$5,480 USD
View
17 more retailers have this diamond
Prices start from $617 USDSave up to $4,863 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
$617 USD