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Marquise|Lab Grown|IGI

4.91ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG847607253

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG847607253

Diamond specifications and retailer prices

From $793 USD
As of November 1, 2026
Save $4,162 USD (84%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,955 USD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 4.91ct lab-grown marquise diamond

This 4.91ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG847607253 or 847607253. Listed at 3 retailers as of October 28, 2026, with prices from $793 to $4,955, a $4,162 spread on the same certified stone. Rare Carat lists it at $4,955. 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

4.91
Carat
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847607253
Dimensions17.32 × 8.85 × 5.68 mm
L/W Ratio1.96
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.32 mm8.85 mm4.91 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847607253
Side View
Table 57.0%Crown 35.7°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 64.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $4,955 USD|Low: $793 USD|High: $4,955 USD|Avg: $2,118 USD
Rare Carat
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$793 USD
Retailer 2$1,370 USD
Rare Carat$4,955 USD

10 data points across 3 retailers

3 retailers$793 USD to $4,955 USD

A
Cheapest Retailer
-
$793 USD
Final sale: no returns
A
Retailer 2
-
$1,370 USD
£1,078 GBP
View
Most Expensive
B
Rare Carat
847607253 · Oct 28
$4,955 USD
View
2 more retailers have this diamond
Prices start from $793 USDSave up to $4,162 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
4.91ct Marquise
$793 USD