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Marquise|Lab Grown|IGI

1.40ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG768629616

Certificate IGI LG768629616

Diamond specifications and retailer prices

From $750 USD
Save $2,730 USD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,569 USD at With Clarity
View at With Clarity

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 LG768629616 or 768629616. Listed at 14 retailers, with a 364% 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

1.40
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768629616
Dimensions11.93 × 5.73 × 3.62 mm
L/W Ratio2.08
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
11.93 mm5.73 mm1.40 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768629616
Side View
Table 59.0%Crown 35.8°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 63.2%

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: Sep 30
Current: $2,331 USD|Low: $750 USD|High: $5,569 USD|Avg: $2,087 USD|-12.8%
Retailer 1
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
With Clarity
October 1, 2026
Retailer 3$750 USD
Retailer 7$819 USD
Retailer 13$823 USD
Retailer 14$830 USD
Retailer 6$839 USD
Retailer 11$982 USD
Retailer 8$1,009 USD
Retailer 10$1,102 USD
Retailer 2$1,540 USD
Retailer 4$2,244 USD
Retailer 1$2,331 USD
Retailer 9$2,425 USD
Retailer 12$2,761 USD
Retailer 5$3,480 USD
With Clarity$5,569 USD

36 data points across 15 retailers

14 retailers$750 USD to $3,480 USD

A
Cheapest Retailer
-
$750 USD
A
Retailer 2
-
$819 USD
HK$6,400 HKD
View
A
Retailer 3
-
$823 USD
View
A
Retailer 4
-
$830 USD
View
A
Retailer 5
-
$982 USD
€935 EUR
View
A
Retailer 6
-
$1,009 USD
£794 GBP
View
A
Retailer 7
-
$1,102 USD
ZAR 17,795 ZAR
View
B+
Retailer 8
-
$1,540 USD
View
B
Retailer 9
-
$2,244 USD
View
B
Retailer 10
-
$2,331 USD
A$3,586 AUD
View
B
Retailer 11
-
$2,425 USD
View
B
Retailer 12
-
$2,761 USD
£2,174 GBP
View
B
Retailer 13
-
$3,480 USD
View
Most Expensive
B
With Clarity
768629616 · Aug 7
$5,569 USD
View
Price last confirmed 55 days ago
13 more retailers have this diamond
Prices start from $750 USDSave up to $2,730 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
$750 USD