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Marquise|Lab Grown|IGI

1.43ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG839697089

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG839697089

Diamond specifications and retailer prices

From $348 USD
As of November 6, 2026
Save $651 USD (65%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,560 USD at Brilliant Earth · As of October 1, 2026
View at Brilliant Earth

About this 1.43ct lab-grown marquise diamond

This 1.43ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839697089 or 839697089. Listed at 8 retailers as of November 6, 2026, with a 187% 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

1.43
Carat
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839697089
Dimensions11.55 × 5.99 × 3.65 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.55 mm5.99 mm1.43 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839697089
Side View
Table 60.0%Crown 34.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
A
Excellent
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: Nov 6
Current: $505 USD|Low: $348 USD|High: $1,053 USD|Avg: $552 USD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$348 USD
Retailer 7$388 USD
Retailer 8$471 USD
Retailer 5$473 USD
Retailer 1$505 USD
Retailer 3$666 USD
Retailer 4$858 USD
Retailer 2$999 USD

10 data points across 8 retailers

8 retailers$348 USD to $999 USD

A
Cheapest Retailer
-
$348 USD
B+
Retailer 2
-
$388 USD
View
A
Retailer 3
-
$473 USD
View
A
Retailer 4
-
$505 USD
View
B+
Retailer 5
-
$666 USD
View
Retailer 6
-
$858 USD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$999 USD
View
Most Expensive
Brilliant Earth
21601833A · Oct 1
$1,560 USD
View
Price last confirmed 36 days ago
7 more retailers have this diamond
Prices start from $348 USDSave up to $651 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
1.43ct Marquise
$348 USD