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Marquise|Lab Grown|IGI

1.89ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG840655923

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840655923

Diamond specifications and retailer prices

From $584 USD
£460 GBP
As of October 27, 2026
Save $966 USD (62%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,550 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.89ct lab-grown marquise diamond

This 1.89ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840655923 or 840655923. Listed at 2 retailers as of October 27, 2026, with prices from $584 to $1,550, a $966 spread on the same certified stone. Brilliant Earth lists it at $1,550. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840655923
Dimensions12.51 × 6.60 × 4.07 mm
L/W Ratio1.90
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.51 mm6.60 mm1.89 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840655923
Side View
Table 60.0%Crown 34.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: $1,550 USD|Low: $271 USD|High: $1,630 USD|Avg: $921 USD|-4.9%
Brilliant Earth
Retailer 2
Retailer 3
October 27, 2026
Retailer 3$271 USD
Retailer 2$584 USD
Brilliant Earth$1,550 USD

23 data points across 3 retailers

2 retailers$584 USD to $1,550 USD

A
Cheapest Retailer
-
$584 USD
£460 GBP
Most Expensive
B
Brilliant Earth
21612598A · Oct 31
$1,550 USD
View
1 more retailer has this diamond
Prices start from $584 USDSave up to $966 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
1.89ct Marquise
$584 USD