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Marquise|Lab Grown|IGI

3.73ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG847631387

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG847631387

Diamond specifications and retailer prices

From $600 USD
As of October 29, 2026
Save $3,360 USD (85%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,960 USD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.73ct lab-grown marquise diamond

This 3.73ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG847631387 or 847631387. Listed at 3 retailers as of October 28, 2026, with prices from $600 to $3,960, a $3,360 spread on the same certified stone. Rare Carat lists it at $3,960. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.73
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847631387
Dimensions16.64 × 8.03 × 4.93 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.64 mm8.03 mm3.73 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847631387
Side View
Table 62.0%Crown 34.2°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 61.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $3,960 USD|Low: $600 USD|High: $3,960 USD|Avg: $1,640 USD
Rare Carat
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$600 USD
Retailer 2$1,075 USD
Rare Carat$3,960 USD

7 data points across 3 retailers

3 retailers$600 USD to $3,960 USD

A
Cheapest Retailer
-
$600 USD
Final sale: no returns
A
Retailer 2
-
$1,075 USD
£847 GBP
View
Most Expensive
B
Rare Carat
847631387 · Oct 28
$3,960 USD
View
2 more retailers have this diamond
Prices start from $600 USDSave up to $3,360 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
3.73ct Marquise
$600 USD