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Radiant|Lab Grown|IGI

4.51ct D VS1 Radiant Lab Grown Diamond

VG • D/VS1 • IGI LG765631503

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

Certificate IGI LG765631503

Diamond specifications and retailer prices

From $1,281 CAD
$912 USD
As of October 27, 2026
Save $13,314 CAD (91%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $14,595 CAD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

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 very-good cut grade and certified by IGI LG765631503 or 765631503. Listed at 23 retailers as of October 27, 2026, with prices from $1,281 to $14,595, a $13,314 spread on the same certified stone. Brilliant Earth lists it at $14,595. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.51
Carat
D
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG765631503
Dimensions11.25 × 8.02 × 5.71 mm
L/W Ratio1.40
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.25 mm8.02 mm4.51 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG765631503
Side View
Table 70.0%Crown 39.7°Girdle: Slightly ThickPavilion 41.3°Culet: NoneDepth 71.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $14,595 CAD|Low: $1,281 CAD|High: $14,595 CAD|Avg: $4,246 CAD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 11
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Retailer 14
Retailer 15
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Retailer 17
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Retailer 19
Retailer 20
Retailer 21
October 29, 2026
Retailer 5$1,281 CAD
Retailer 19$1,395 CAD
Retailer 13$1,423 CAD
Retailer 6$1,735 CAD
Retailer 4$1,951 CAD
Retailer 15$2,128 CAD
Retailer 17$2,252 CAD
Retailer 16$2,279 CAD
Retailer 3$3,014 CAD
Retailer 2$3,164 CAD
Retailer 18$3,182 CAD
Retailer 20$3,558 CAD
Retailer 9$4,110 CAD
Retailer 21$4,179 CAD
Retailer 10$4,412 CAD
Retailer 11$4,643 CAD
Retailer 12$5,068 CAD
Retailer 14$5,072 CAD
Retailer 8$5,166 CAD
Retailer 7$7,094 CAD
Brilliant Earth$14,595 CAD

34 data points across 21 retailers

23 retailers$1,281 CAD to $14,595 CAD

A
Cheapest Retailer
-
$1,281 CAD
$912 USD
A
Retailer 2
-
$1,395 CAD
$993 USD
View
A
Retailer 3
-
$1,423 CAD
£798 GBP
View
A
Retailer 4
-
$1,521 CAD
$1,083 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
$1,735 CAD
$1,235 USD
View
A
Retailer 6
-
$1,951 CAD
$1,389 USD
View
A
Retailer 7
-
$2,128 CAD
$1,515 USD
View
A
Retailer 8
-
$2,252 CAD
€1,527 EUR
View
A
Retailer 9
-
$2,279 CAD
£1,277 GBP
View
B+
Retailer 10
-
$3,014 CAD
$2,146 USD
View
B+
Retailer 11
-
$3,164 CAD
ZAR 36,386 ZAR
View
B+
Retailer 12
-
$3,182 CAD
A$3,485 AUD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
$3,558 CAD
$2,533 USD
View
B+
Retailer 14
-
$4,110 CAD
£2,304 GBP
View
B+
Retailer 15
-
$4,179 CAD
$2,975 USD
View
B+
Retailer 16
-
$4,412 CAD
$3,141 USD
View
B
Retailer 17
-
$4,643 CAD
$3,305 USD
View
B
Retailer 18
-
$5,068 CAD
£2,841 GBP
View
B
Retailer 19
-
$5,072 CAD
A$5,555 AUD
View
Price last confirmed 20 days ago
B
Retailer 20
-
$5,166 CAD
$3,678 USD
View
B
Retailer 21
-
$7,094 CAD
$5,050 USD
View
B
Retailer 22
-
$10,204 CAD
£5,720 GBP
View
Price last confirmed 18 days ago
Most Expensive
B
Brilliant Earth
18693869A · Oct 28
$14,595 CAD
$10,390 USD
View
22 more retailers have this diamond
Prices start from $1,281 CADSave up to $13,314 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
$1,281 CAD