Radiant|Lab Grown|IGI

4.51ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG787610099

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

Certificate IGI LG787610099

Diamond specifications and retailer prices

From $1,156 CAD
$823 USD
As of October 28, 2026
Save $5,924 CAD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $10,204 CAD at Queensmith · As of October 10, 2026
View at Queensmith

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 LG787610099 or 787610099. Listed at 21 retailers as of October 28, 2026, with a 512% 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

4.51
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787610099
Dimensions12.01 × 7.91 × 5.25 mm
L/W Ratio1.52
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.01 mm7.91 mm4.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787610099
Side View
Table 64.0%Crown 37.5°Girdle: ThickPavilion 37.5°Culet: NoneDepth 66.4%

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 28
Current: $4,735 CAD|Low: $993 CAD|High: $7,164 CAD|Avg: $2,717 CAD|-12.1%
Retailer 1
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 29, 2026
Retailer 3$1,034 CAD
Retailer 16$1,156 CAD
Retailer 5$1,200 CAD
Retailer 7$1,200 CAD
Retailer 13$1,482 CAD
Retailer 4$1,702 CAD
Retailer 2$1,717 CAD
Retailer 12$1,913 CAD
Retailer 14$1,984 CAD
Retailer 11$2,552 CAD
Retailer 15$2,568 CAD
Retailer 18$2,954 CAD
Retailer 6$3,433 CAD
Retailer 9$3,889 CAD
Retailer 10$4,134 CAD
Retailer 8$4,275 CAD
Retailer 1$4,735 CAD
Retailer 17$7,080 CAD

38 data points across 18 retailers

21 retailers$1,156 CAD to $7,080 CAD

A
Retailer 1
-
$1,034 CAD
$736 USD
Price last confirmed 10 days ago
A
Retailer 2
-
$1,156 CAD
$823 USD
View
Final sale: no returns
A
Retailer 3
-
$1,200 CAD
$854 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$1,200 CAD
$854 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
$1,482 CAD
$1,055 USD
View
A
Retailer 6
-
$1,702 CAD
$1,212 USD
View
B+
Retailer 7
-
$1,717 CAD
$1,222 USD
View
A
Retailer 8
-
$1,913 CAD
£1,072 GBP
View
A
Retailer 9
-
$1,984 CAD
€1,345 EUR
View
A
Retailer 10
-
$2,552 CAD
ZAR 29,354 ZAR
View
A
Retailer 11
-
$2,568 CAD
A$2,812 AUD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$2,954 CAD
$2,103 USD
View
B+
Retailer 13
-
$3,433 CAD
$2,444 USD
View
B+
Retailer 14
-
$3,889 CAD
$2,769 USD
View
B+
Retailer 15
-
$3,918 CAD
£2,196 GBP
View
Price last confirmed 37 days ago
B+
Retailer 16
-
$4,054 CAD
$2,886 USD
View
B+
Retailer 17
-
$4,134 CAD
$2,943 USD
View
B+
Retailer 18
-
$4,275 CAD
$3,043 USD
View
B+
Retailer 19
-
$4,735 CAD
£2,654 GBP
View
B
Retailer 20
-
$7,080 CAD
$5,040 USD
View
Most Expensive
B
Queensmith
LG787610099 · Oct 10
$10,204 CAD
£5,720 GBP
View
Price last confirmed 18 days ago
20 more retailers have this diamond
Prices start from $1,156 CADSave up to $5,924 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
$1,156 CAD