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Marquise|Lab Grown|IGI

1.45ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG790698711

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790698711

Diamond specifications and retailer prices

From $477 USD
As of November 4, 2026
Save $3,813 USD (89%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $4,290 USD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.45ct lab-grown marquise diamond

This 1.45ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790698711 or 790698711. Listed at 25 retailers as of November 4, 2026, with prices from $477 to $4,290, a $3,813 spread on the same certified stone. Brilliant Earth lists it at $4,290. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790698711
Dimensions11.66 × 5.93 × 3.74 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
11.66 mm5.93 mm1.45 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790698711
Side View
Table 55.0%Crown 34.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.1%

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 4
Current: $4,290 USD|Low: $458 USD|High: $4,290 USD|Avg: $1,485 USD
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 7
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 19
November 4, 2026
Retailer 4$477 USD
Retailer 14$534 USD
Retailer 11$535 USD
Retailer 7$592 USD
Retailer 17$735 USD
Retailer 6$878 USD
Retailer 10$881 USD
Retailer 18$949 USD
Retailer 12$1,003 USD
Retailer 19$1,017 USD
Retailer 15$1,127 USD
Retailer 9$1,719 USD
Retailer 8$1,832 USD
Retailer 3$1,905 USD
Retailer 13$2,240 USD
Retailer 16$2,727 USD
Retailer 5$2,806 USD
Retailer 2$3,670 USD
Brilliant Earth$4,290 USD

37 data points across 19 retailers

25 retailers$477 USD to $4,290 USD

A
Cheapest Retailer
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$477 USD
A
Retailer 2
-
$534 USD
View
Final sale: no returns
A
Retailer 3
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$535 USD
View
A
Retailer 4
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$592 USD
View
Retailer 5
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$592 USD
View
Price last confirmed 19 days ago
A
Retailer 6
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$661 USD
View
A
Retailer 7
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$735 USD
View
A
Retailer 8
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$878 USD
View
A
Retailer 9
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$881 USD
View
Retailer 10
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$949 USD
View
Price last confirmed 8 days ago
A
Retailer 11
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$1,003 USD
View
A
Retailer 12
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$1,017 USD
View
A
Retailer 13
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$1,127 USD
View
B+
Retailer 14
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$1,454 USD
View
B+
Retailer 15
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$1,703 USD
View
B+
Retailer 16
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$1,719 USD
View
B+
Retailer 17
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$1,832 USD
View
B+
Retailer 18
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$1,905 USD
View
B+
Retailer 19
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$2,066 USD
View
B+
Retailer 20
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$2,240 USD
View
B
Retailer 21
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$2,542 USD
View
B
Retailer 22
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$2,727 USD
View
B
Retailer 23
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$2,806 USD
View
B
Retailer 24
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$3,670 USD
View
Most Expensive
B
Brilliant Earth
21575407Y · Nov 4
$4,290 USD
View
24 more retailers have this diamond
Prices start from $477 USDSave up to $3,813 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
1.45ct Marquise
$477 USD