CaratHunter
Plans
Marquise|Lab Grown|IGI

1.40ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG764689959

Certificate IGI LG764689959

Diamond specifications and retailer prices

From $624 USD
Save $3,056 USD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,680 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 top-tier cut grade and certified by IGI LG764689959 or 764689959. Listed at 17 retailers, with prices from $624 to $3,680 at Brilliant Earth, a $3,056 spread on the same certified stone. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG764689959
Dimensions10.83 × 5.99 × 3.76 mm
L/W Ratio1.81
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
10.83 mm5.99 mm1.40 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG764689959
Side View
Table 59.0%Crown 36.2°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.8%

Caratlytics Score

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

Price History

Last verified: Oct 1
Current: $3,680 USD|Low: $445 USD|High: $3,760 USD|Avg: $1,477 USD|-2.1%
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
Retailer 16
Retailer 17
October 1, 2026
Retailer 17$624 USD
Retailer 9$755 USD
Retailer 4$800 USD
Retailer 16$903 USD
Retailer 14$1,031 USD
Retailer 10$1,068 USD
Retailer 11$1,075 USD
Retailer 5$1,101 USD
Retailer 13$1,166 USD
Retailer 7$1,655 USD
Retailer 12$1,693 USD
Retailer 3$2,012 USD
Retailer 15$2,193 USD
Retailer 8$2,246 USD
Retailer 6$2,338 USD
Retailer 2$3,044 USD
Brilliant Earth$3,680 USD

36 data points across 17 retailers

17 retailers$624 USD to $3,680 USD

A
Cheapest Retailer
-
$624 USD
A
Retailer 2
-
$755 USD
HK$5,900 HKD
View
A
Retailer 3
-
$800 USD
View
A
Retailer 4
-
$903 USD
View
A
Retailer 5
-
$1,031 USD
€982 EUR
View
A
Retailer 6
-
$1,068 USD
View
A
Retailer 7
-
$1,077 USD
£848 GBP
View
A
Retailer 8
-
$1,101 USD
View
A
Retailer 9
-
$1,166 USD
ZAR 18,835 ZAR
View
B+
Retailer 10
-
$1,655 USD
View
B+
Retailer 11
-
$1,693 USD
A$2,605 AUD
View
B+
Retailer 12
-
$2,012 USD
£1,584 GBP
View
B
Retailer 13
-
$2,193 USD
SGD 2,963 SGD
View
B
Retailer 14
-
$2,246 USD
View
B
Retailer 15
-
$2,338 USD
View
B
Retailer 16
-
$3,044 USD
£2,397 GBP
View
Most Expensive
B
Brilliant Earth
19056747A · Oct 1
$3,680 USD
View
16 more retailers have this diamond
Prices start from $624 USDSave up to $3,056 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
$624 USD