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Marquise|Lab Grown|IGI

1.40ct D IF Marquise Lab Grown Diamond

- • D/IF • IGI LG754595332

Certificate IGI LG754595332

Diamond specifications and retailer prices

From $528 USD
Save $3,392 USD (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,920 USD at Brilliant Earth
View at Brilliant Earth

About this 1.4ct lab-grown marquise diamond

This 1.4ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG754595332 or 754595332. Listed at 21 retailers, with prices from $528 to $3,920 at Brilliant Earth, a $3,392 spread on the same certified stone. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.40
Carat
D
Color
IF
Clarity
-
Cut

Specifications

Cut-
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754595332
Dimensions12.29 × 5.74 × 3.48 mm
L/W Ratio2.14
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
12.29 mm5.74 mm1.40 ctD / IF
OriginLab Grown
Cut-
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754595332
Side View
Table 55.0%Crown 32.7°Girdle: MediumPavilion 39°Culet: NoneDepth 60.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $3,920 USD|Low: $528 USD|High: $5,569 USD|Avg: $2,151 USD|-0.8%
Brilliant Earth
Retailer 2
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Retailer 21
October 1, 2026
Retailer 19$528 USD
Retailer 21$591 USD
Retailer 5$646 USD
Retailer 17$655 USD
Retailer 12$750 USD
Retailer 18$755 USD
Retailer 7$869 USD
Retailer 4$982 USD
Retailer 20$1,009 USD
Retailer 8$1,090 USD
Retailer 3$1,102 USD
Retailer 9$1,540 USD
Retailer 16$1,721 USD
Retailer 11$1,903 USD
Retailer 13$1,905 USD
Retailer 14$2,127 USD
Retailer 6$2,181 USD
Retailer 15$2,331 USD
Retailer 10$2,531 USD
Retailer 2$2,765 USD
Brilliant Earth$3,920 USD

37 data points across 21 retailers

21 retailers$528 USD to $3,920 USD

A
Cheapest Retailer
-
$528 USD
A
Retailer 2
-
$591 USD
View
A
Retailer 3
-
$646 USD
View
A
Retailer 4
-
$655 USD
View
A
Retailer 5
-
$750 USD
View
A
Retailer 6
-
$755 USD
HK$5,900 HKD
View
A
Retailer 7
-
$869 USD
View
A
Retailer 8
-
$982 USD
€935 EUR
View
A
Retailer 9
-
$1,009 USD
£794 GBP
View
A
Retailer 10
-
$1,090 USD
View
A
Retailer 11
-
$1,102 USD
ZAR 17,795 ZAR
View
B+
Retailer 12
-
$1,540 USD
View
B
Retailer 13
-
$1,721 USD
View
B+
Retailer 14
-
$1,903 USD
A$2,928 AUD
View
B+
Retailer 15
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$1,905 USD
£1,500 GBP
View
B
Retailer 16
-
$2,127 USD
View
B
Retailer 17
-
$2,181 USD
SGD 2,947 SGD
View
B
Retailer 18
-
$2,331 USD
A$3,586 AUD
View
B
Retailer 19
-
$2,583 USD
View
B
Retailer 20
-
$2,765 USD
£2,177 GBP
View
Most Expensive
B
Brilliant Earth
18146223A · Oct 1
$3,920 USD
View
20 more retailers have this diamond
Prices start from $528 USDSave up to $3,392 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.

A
1.40ct Marquise
$528 USD