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Radiant|Lab Grown|IGI

4.91ct F VS1 Radiant Lab Grown Diamond

EX • F/VS1 • IGI LG838639359

Certificate IGI LG838639359

Diamond specifications and retailer prices

From $1,183 USD
£932 GBP
Save $3,002 USD (72%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $4,185 USD at Rare Carat
View at Rare Carat

About this 4.91ct lab-grown radiant diamond

This 4.91ct lab-grown radiant 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 LG838639359 or 838639359. Listed at 2 retailers, with prices from $1,183 to $4,185 at Rare Carat, a $3,002 spread on the same certified stone. 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 angle44.5°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838639359
Dimensions12.14 × 8.44 × 5.50 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.14 mm8.44 mm4.91 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838639359
Side View
Table 65.0%Crown 44.5°Girdle: MediumPavilion 37°Culet: NoneDepth 65.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $4,185 USD|Low: $1,193 USD|High: $4,185 USD|Avg: $2,050 USD
Rare Carat
Retailer 2
September 29, 2026
Retailer 2$1,193 USD
Rare Carat$4,185 USD

5 data points across 2 retailers

2 retailers$1,183 USD to $4,185 USD

B+
Cheapest Retailer
-
$1,183 USD
£932 GBP
Most Expensive
C
Rare Carat
838639359 · Sep 28
$4,185 USD
View
1 more retailer has this diamond
Prices start from $1,183 USDSave up to $3,002 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.

B+
4.91ct Radiant
$1,183 USD