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Marquise|Lab Grown|IGI

1.40ct F VVS1 Marquise Lab Grown Diamond

ID • F/VVS1 • IGI LG783608620

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG783608620

Diamond specifications and retailer prices

From $350 USD
As of October 28, 2026
Save $920 USD (72%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,270 USD at Brilliant Earth · As of October 28, 2026
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 F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG783608620 or 783608620. Listed at 14 retailers as of October 28, 2026, with prices from $350 to $1,270, a $920 spread on the same certified stone. Brilliant Earth lists it at $1,270. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
F
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783608620
Dimensions11.50 × 5.78 × 3.59 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.50 mm5.78 mm1.40 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783608620
Side View
Table 65.0%Crown 38.3°Girdle: STK-THKPavilion 39.1°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
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: Oct 28
Current: $1,270 USD|Low: $234 USD|High: $1,300 USD|Avg: $760 USD|-2.3%
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
October 31, 2026
Retailer 15$234 USD
Retailer 6$350 USD
Retailer 14$437 USD
Retailer 12$447 USD
Retailer 9$479 USD
Retailer 3$636 USD
Retailer 13$736 USD
Retailer 5$843 USD
Retailer 7$856 USD
Retailer 4$889 USD
Retailer 2$963 USD
Retailer 10$1,048 USD
Retailer 8$1,123 USD
Retailer 11$1,225 USD
Brilliant Earth$1,270 USD

39 data points across 15 retailers

14 retailers$350 USD to $1,270 USD

B+
Cheapest Retailer
-
$350 USD
Retailer 2
-
$437 USD
€416 EUR
View
Price last confirmed 7 days ago
A
Retailer 3
-
$447 USD
ZAR 7,219 ZAR
View
A
Retailer 4
-
$479 USD
£377 GBP
View
Retailer 5
-
$636 USD
A$978 AUD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$736 USD
View
B+
Retailer 7
-
$843 USD
SGD 1,139 SGD
View
Retailer 8
-
$856 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$889 USD
View
B+
Retailer 10
-
$963 USD
View
B+
Retailer 11
-
$1,048 USD
£825 GBP
View
B
Retailer 12
-
$1,123 USD
A$1,727 AUD
View
B
Retailer 13
-
$1,225 USD
View
Most Expensive
B
Brilliant Earth
21188461A · Oct 28
$1,270 USD
View
13 more retailers have this diamond
Prices start from $350 USDSave up to $920 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
1.40ct Marquise
$350 USD