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Marquise|Lab Grown|IGI

1.55ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG795601723

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG795601723

Diamond specifications and retailer prices

From $647 USD
As of November 6, 2026
Save $2,943 USD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,590 USD at Brilliant Earth · As of November 6, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG795601723 or 795601723. Listed at 20 retailers as of November 6, 2026, with prices from $647 to $3,590, a $2,943 spread on the same certified stone. Brilliant Earth lists it at $3,590. 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 angle33.6°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG795601723
Dimensions11.84 × 6.03 × 3.73 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.84 mm6.03 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG795601723
Side View
Table 59.0%Crown 33.6°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 61.9%

Caratlytics Score

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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: $3,590 USD|Low: $647 USD|High: $4,520 USD|Avg: $1,786 USD|-20.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 16$647 USD
Retailer 9$734 USD
Retailer 13$850 USD
Retailer 17$960 USD
Retailer 15$1,006 USD
Retailer 10$1,108 USD
Retailer 14$1,152 USD
Retailer 2$1,194 USD
Retailer 11$1,672 USD
Retailer 4$1,778 USD
Retailer 6$2,087 USD
Retailer 5$2,262 USD
Retailer 3$2,307 USD
Retailer 7$2,320 USD
Retailer 8$2,675 USD
Retailer 12$3,102 USD
Brilliant Earth$3,590 USD

39 data points across 17 retailers

20 retailers$647 USD to $3,590 USD

Retailer 1
-
$568 USD
Price last confirmed 35 days ago
A
Retailer 2
-
$647 USD
View
Final sale: no returns
Retailer 3
-
$673 USD
View
Price last confirmed 38 days ago
Retailer 4
-
$734 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
$850 USD
View
A
Retailer 6
-
$960 USD
View
A
Retailer 7
-
$1,006 USD
View
A
Retailer 8
-
$1,108 USD
View
A
Retailer 9
-
$1,152 USD
View
A
Retailer 10
-
$1,194 USD
View
A
Retailer 11
-
$1,672 USD
View
B+
Retailer 12
-
$1,778 USD
View
Retailer 13
-
$1,931 USD
View
Price last confirmed 33 days ago
B+
Retailer 14
-
$2,087 USD
View
B+
Retailer 15
-
$2,262 USD
View
B+
Retailer 16
-
$2,307 USD
View
B+
Retailer 17
-
$2,320 USD
View
Retailer 18
-
$2,675 USD
View
Price last confirmed 9 days ago
B+
Retailer 19
-
$3,102 USD
View
Most Expensive
B
Brilliant Earth
19044678A · Nov 6
$3,590 USD
View
19 more retailers have this diamond
Prices start from $647 USDSave up to $2,943 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
$647 USD