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Marquise|Lab Grown|IGI

1.45ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG790611663

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790611663

Diamond specifications and retailer prices

From $392 USD
As of October 30, 2026
Save $2,748 USD (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,520 USD at Rare Carat · As of September 30, 2026
View at Rare Carat

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 LG790611663 or 790611663. Listed at 21 retailers as of October 30, 2026, with a 701% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790611663
Dimensions11.95 × 5.95 × 3.68 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
11.95 mm5.95 mm1.45 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790611663
Side View
Table 56.0%Crown 33.4°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,520 USD|Low: $392 USD|High: $4,340 USD|Avg: $1,626 USD
Rare Carat
Retailer 2
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Retailer 22
October 30, 2026
Retailer 8$392 USD
Retailer 10$438 USD
Retailer 3$439 USD
Retailer 19$487 USD
Retailer 21$487 USD
Retailer 9$537 USD
Retailer 17$635 USD
Retailer 7$728 USD
Retailer 11$773 USD
Retailer 18$777 USD
Retailer 13$797 USD
Retailer 16$836 USD
Retailer 4$1,109 USD
Retailer 14$1,365 USD
Retailer 5$1,417 USD
Retailer 15$1,546 USD
Retailer 20$1,564 USD
Retailer 6$1,600 USD
Retailer 12$1,807 USD
Retailer 22$1,903 USD
Retailer 2$3,140 USD
Rare Carat$3,520 USD

38 data points across 22 retailers

21 retailers$392 USD to $3,140 USD

A+
Cheapest Retailer
-
$392 USD
Retailer 2
-
$439 USD
View
Price last confirmed 7 days ago
Retailer 3
-
$487 USD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$487 USD
View
A
Retailer 5
-
$537 USD
View
Retailer 6
-
$635 USD
View
Price last confirmed 4 days ago
A
Retailer 7
-
$728 USD
View
Retailer 8
-
$773 USD
View
Price last confirmed 7 days ago
Retailer 9
-
$777 USD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$797 USD
View
Retailer 11
-
$836 USD
View
Price last confirmed 7 days ago
A
Retailer 12
-
$1,109 USD
View
B+
Retailer 13
-
$1,365 USD
View
B+
Retailer 14
-
$1,417 USD
View
B+
Retailer 15
-
$1,546 USD
View
B+
Retailer 16
-
$1,564 USD
View
B+
Retailer 17
-
$1,600 USD
View
B+
Retailer 18
-
$1,807 USD
View
Retailer 19
-
$1,903 USD
View
Price last confirmed 10 days ago
B
Retailer 20
-
$3,140 USD
View
Most Expensive
Rare Carat
A9-256A · Sep 30
$3,520 USD
View
Price last confirmed 35 days ago
20 more retailers have this diamond
Prices start from $392 USDSave up to $2,748 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
$392 USD