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Marquise|Lab Grown|IGI

1.54ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG788621215

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG788621215

Diamond specifications and retailer prices

From $1,082 USD
As of November 4, 2026
Save $3,428 USD (76%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $4,510 USD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.54ct lab-grown marquise diamond

This 1.54ct 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 LG788621215 or 788621215. Listed at 28 retailers as of November 3, 2026, with prices from $1,082 to $4,510, a $3,428 spread on the same certified stone. Brilliant Earth lists it at $4,510. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788621215
Dimensions11.99 × 6.09 × 3.82 mm
L/W Ratio1.97
Girdle conditionFaceted
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
11.99 mm6.09 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788621215
Side View
Table 56.0%Crown 33.7°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.7%

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 4
Current: $4,510 USD|Low: $966 USD|High: $4,510 USD|Avg: $2,383 USD
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
November 5, 2026
Retailer 5$966 USD
Retailer 7$1,264 USD
Retailer 9$1,295 USD
Retailer 11$1,597 USD
Retailer 6$1,711 USD
Retailer 3$2,003 USD
Retailer 10$2,062 USD
Retailer 8$2,416 USD
Retailer 4$2,655 USD
Retailer 12$2,791 USD
Retailer 13$3,782 USD
Retailer 2$3,792 USD
Brilliant Earth$4,510 USD

33 data points across 13 retailers

28 retailers$1,082 USD to $4,510 USD

Retailer 1
-
$966 USD
Price last confirmed 28 days ago
Retailer 2
-
$1,052 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$1,082 USD
View
Final sale: no returns
Retailer 4
-
$1,121 USD
View
Price last confirmed 33 days ago
Retailer 5
-
$1,121 USD
View
Price last confirmed 24 days ago
A
Retailer 6
-
$1,264 USD
View
A
Retailer 7
-
$1,272 USD
View
A
Retailer 8
-
$1,295 USD
View
A
Retailer 9
-
$1,329 USD
View
A
Retailer 10
-
$1,597 USD
View
A
Retailer 11
-
$1,605 USD
View
A
Retailer 12
-
$1,711 USD
View
B+
Retailer 13
-
$2,003 USD
View
B+
Retailer 14
-
$2,062 USD
View
B+
Retailer 15
-
$2,228 USD
View
B+
Retailer 16
-
$2,416 USD
View
Retailer 17
-
$2,655 USD
View
Price last confirmed 8 days ago
B
Retailer 18
-
$2,791 USD
View
B
Retailer 19
-
$3,093 USD
View
Retailer 20
-
$3,152 USD
View
Price last confirmed 36 days ago
B
Retailer 21
-
$3,333 USD
View
B
Retailer 22
-
$3,476 USD
View
B
Retailer 23
-
$3,639 USD
View
B
Retailer 24
-
$3,762 USD
View
B
Retailer 25
-
$3,782 USD
View
B
Retailer 26
-
$3,792 USD
View
B
Retailer 27
-
$3,903 USD
View
Most Expensive
B
Brilliant Earth
20086108A · Nov 3
$4,510 USD
View
27 more retailers have this diamond
Prices start from $1,082 USDSave up to $3,428 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
1.54ct Marquise
$1,082 USD