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Radiant|Lab Grown|IGI

4.51ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG839647920

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

Certificate IGI LG839647920

Diamond specifications and retailer prices

From $1,221 CAD
$869 USD
As of October 27, 2026
Save $5,859 CAD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,080 CAD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 4.51ct lab-grown radiant diamond

This 4.51ct 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 LG839647920 or 839647920. Listed at 18 retailers as of October 27, 2026, with prices from $1,221 to $7,080, a $5,859 spread on the same certified stone. Rare Carat lists it at $7,080. 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

4.51
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839647920
Dimensions12.11 × 8.00 × 5.28 mm
L/W Ratio1.51
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.11 mm8.00 mm4.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839647920
Side View
Table 61.0%Crown 44.2°Girdle: MediumPavilion 32.4°Culet: NoneDepth 66.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $7,080 CAD|Low: $1,221 CAD|High: $7,157 CAD|Avg: $3,242 CAD|-1.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 27, 2026
Retailer 8$1,221 CAD
Retailer 5$1,221 CAD
Retailer 13$1,474 CAD
Retailer 6$1,510 CAD
Retailer 15$1,914 CAD
Retailer 2$1,929 CAD
Retailer 17$2,044 CAD
Retailer 12$2,669 CAD
Retailer 14$2,710 CAD
Retailer 16$3,010 CAD
Retailer 7$3,453 CAD
Retailer 18$4,064 CAD
Retailer 9$4,257 CAD
Retailer 3$4,279 CAD
Retailer 4$4,373 CAD
Retailer 11$4,751 CAD
Retailer 10$6,037 CAD
Rare Carat$7,080 CAD

20 data points across 18 retailers

18 retailers$1,221 CAD to $7,080 CAD

A
Retailer 1
-
$1,221 CAD
£684 GBP
Price last confirmed 21 days ago
A
Retailer 2
-
$1,221 CAD
$869 USD
View
Final sale: no returns
A
Retailer 3
-
$1,474 CAD
HK$8,200 HKD
View
A
Retailer 4
-
$1,510 CAD
$1,075 USD
View
A
Retailer 5
-
$1,914 CAD
€1,298 EUR
View
A
Retailer 6
-
$1,929 CAD
£1,081 GBP
View
A
Retailer 7
-
$2,044 CAD
$1,455 USD
View
A
Retailer 8
-
$2,669 CAD
ZAR 30,695 ZAR
View
A
Retailer 9
-
$2,710 CAD
A$2,968 AUD
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$3,010 CAD
$2,143 USD
View
B+
Retailer 11
-
$3,453 CAD
$2,458 USD
View
B+
Retailer 12
-
$4,064 CAD
$2,893 USD
View
B+
Retailer 13
-
$4,257 CAD
SGD 4,095 SGD
View
B+
Retailer 14
-
$4,279 CAD
$3,046 USD
View
B+
Retailer 15
-
$4,373 CAD
$3,113 USD
View
B+
Retailer 16
-
$4,751 CAD
£2,663 GBP
View
B
Retailer 17
-
$6,037 CAD
$4,298 USD
View
Most Expensive
B
Rare Carat
172691-BB · Oct 28
$7,080 CAD
$5,040 USD
View
17 more retailers have this diamond
Prices start from $1,221 CADSave up to $5,859 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
4.51ct Radiant
$1,221 CAD