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Radiant|Lab Grown|IGI

3.91ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG822611050

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG822611050

Diamond specifications and retailer prices

From $826 CAD
$590 USD
As of October 29, 2026
Save $657 CAD (44%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,493 CAD at Rare Carat · As of October 14, 2026
View at Rare Carat

About this 3.91ct lab-grown radiant diamond

This 3.91ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG822611050 or 822611050. Listed at 3 retailers as of October 29, 2026, with a 80% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.91
Carat
D
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle56.4°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG822611050
Dimensions10.96 × 7.83 × 5.22 mm
L/W Ratio1.40
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.96 mm7.83 mm3.91 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG822611050
Side View
Table 66.0%Crown 56.4°Girdle: MediumPavilion 36.9°Culet: NoneDepth 66.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $5,493 CAD|Low: $605 CAD|High: $5,500 CAD|Avg: $2,262 CAD|-0.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 2$826 CAD
Retailer 4$1,085 CAD
Retailer 5$1,416 CAD
Retailer 3$1,483 CAD
Retailer 6$2,858 CAD
Retailer 7$3,050 CAD
Retailer 8$3,195 CAD
Rare Carat$5,493 CAD

36 data points across 8 retailers

3 retailers$826 CAD to $1,483 CAD

A
Cheapest Retailer
-
$826 CAD
$590 USD
Final sale: no returns
A
Retailer 2
-
$1,483 CAD
£834 GBP
View
Most Expensive
Rare Carat
822611050 · Oct 14
$5,493 CAD
$3,925 USD
View
Price last confirmed 15 days ago
2 more retailers have this diamond
Prices start from $826 CADSave up to $657 CAD

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
3.91ct Radiant
$826 CAD