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Marquise|Lab Grown|IGI

1.54ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG784698976

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG784698976

Diamond specifications and retailer prices

From $650 USD
As of October 30, 2026
Save $2,600 USD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,250 USD at Brilliant Earth · As of October 28, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784698976 or 784698976. Listed at 20 retailers as of October 28, 2026, with prices from $650 to $3,250, a $2,600 spread on the same certified stone. Brilliant Earth lists it at $3,250. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784698976
Dimensions12.00 × 5.98 × 3.76 mm
L/W Ratio2.01
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
12.00 mm5.98 mm1.54 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784698976
Side View
Table 59.0%Crown 36.3°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.9%

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: Oct 30
Current: $3,250 USD|Low: $650 USD|High: $3,310 USD|Avg: $1,735 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
Retailer 14
Retailer 15
October 30, 2026
Retailer 11$650 USD
Retailer 5$794 USD
Retailer 13$835 USD
Retailer 8$934 USD
Retailer 10$968 USD
Retailer 2$1,126 USD
Retailer 14$1,150 USD
Retailer 9$1,239 USD
Retailer 15$1,796 USD
Retailer 12$2,280 USD
Retailer 6$2,293 USD
Retailer 4$2,420 USD
Retailer 7$2,499 USD
Retailer 3$3,146 USD
Brilliant Earth$3,250 USD

20 data points across 15 retailers

20 retailers$650 USD to $3,250 USD

A
Cheapest Retailer
-
$650 USD
Final sale: no returns
Retailer 2
-
$697 USD
View
Price last confirmed 16 days ago
Retailer 3
-
$756 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
$794 USD
HK$6,200 HKD
View
Retailer 5
-
$805 USD
View
Price last confirmed 15 days ago
Retailer 6
-
$815 USD
View
Price last confirmed 17 days ago
A
Retailer 7
-
$835 USD
View
A
Retailer 8
-
$934 USD
View
A
Retailer 9
-
$968 USD
View
A
Retailer 10
-
$1,126 USD
£887 GBP
View
A
Retailer 11
-
$1,150 USD
€1,095 EUR
View
A
Retailer 12
-
$1,239 USD
ZAR 20,011 ZAR
View
B+
Retailer 13
-
$1,796 USD
View
B+
Retailer 14
-
$2,280 USD
SGD 3,081 SGD
View
B+
Retailer 15
-
$2,293 USD
View
Retailer 16
-
$2,293 USD
View
Price last confirmed 17 days ago
B+
Retailer 17
-
$2,420 USD
View
Retailer 18
-
$2,499 USD
£1,968 GBP
View
Price last confirmed 15 days ago
B+
Retailer 19
-
$3,146 USD
£2,477 GBP
View
Most Expensive
B
Brilliant Earth
20699467A · Oct 28
$3,250 USD
View
19 more retailers have this diamond
Prices start from $650 USDSave up to $2,600 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
$650 USD