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Marquise|Lab Grown|IGI

1.61ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG838655234

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838655234

Diamond specifications and retailer prices

From $267 USD
As of November 1, 2026
Save $853 USD (76%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,270 USD at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

About this 1.61ct lab-grown marquise diamond

This 1.61ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG838655234 or 838655234. Listed at 4 retailers as of November 1, 2026, with a 319% 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

1.61
Carat
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838655234
Dimensions12.01 × 5.99 × 3.89 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.01 mm5.99 mm1.61 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838655234
Side View
Table 56.0%Crown 37.7°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 64.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,270 USD|Low: $267 USD|High: $1,370 USD|Avg: $915 USD|-7.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4$267 USD
Retailer 2$581 USD
Retailer 3$1,120 USD
Brilliant Earth$1,270 USD

33 data points across 4 retailers

4 retailers$267 USD to $1,120 USD

A
Cheapest Retailer
-
$267 USD
Final sale: no returns
A
Retailer 2
-
$581 USD
£458 GBP
View
B
Retailer 3
-
$1,120 USD
View
Most Expensive
Brilliant Earth
21538530A · Oct 18
$1,270 USD
View
Price last confirmed 14 days ago
3 more retailers have this diamond
Prices start from $267 USDSave up to $853 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
1.61ct Marquise
$267 USD