Radiant|Lab Grown|IGI

4.78ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG831678037

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

Certificate IGI LG831678037

Diamond specifications and retailer prices

From $847 CAD
$605 USD
As of October 27, 2026
Save $5,004 CAD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,850 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.78ct lab-grown radiant diamond

This 4.78ct lab-grown radiant sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831678037 or 831678037. Listed at 15 retailers as of October 27, 2026, with prices from $847 to $5,850, a $5,004 spread on the same certified stone. Brilliant Earth lists it at $5,850. 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

4.78
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831678037
Dimensions11.74 × 8.35 × 5.67 mm
L/W Ratio1.41
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.74 mm8.35 mm4.78 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831678037
Side View
Table 68.0%Crown 44.1°Girdle: ThickPavilion 35.6°Culet: NoneDepth 67.9%

Caratlytics Score

How it works →
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: $5,850 CAD|Low: $935 CAD|High: $5,906 CAD|Avg: $2,857 CAD|-0.9%
Brilliant Earth
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
October 29, 2026
Retailer 13$935 CAD
Retailer 4$1,001 CAD
Retailer 2$1,218 CAD
Retailer 12$1,388 CAD
Retailer 14$1,592 CAD
Retailer 3$2,117 CAD
Retailer 6$2,274 CAD
Retailer 11$2,413 CAD
Retailer 8$2,724 CAD
Retailer 9$3,139 CAD
Retailer 5$4,346 CAD
Retailer 7$4,518 CAD
Retailer 10$4,567 CAD
Brilliant Earth$5,850 CAD

29 data points across 14 retailers

15 retailers$847 CAD to $5,850 CAD

A
Cheapest Retailer
-
$847 CAD
$605 USD
A
Retailer 2
-
$935 CAD
$668 USD
View
A
Retailer 3
-
$1,001 CAD
$715 USD
View
Final sale: no returns
A
Retailer 4
-
$1,218 CAD
$870 USD
View
B+
Retailer 5
-
$1,388 CAD
$992 USD
View
A
Retailer 6
-
$1,592 CAD
€1,083 EUR
View
Retailer 7
-
$2,117 CAD
A$2,327 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$2,274 CAD
$1,625 USD
View
A
Retailer 9
-
$2,413 CAD
$1,724 USD
View
B+
Retailer 10
-
$2,724 CAD
$1,946 USD
View
B+
Retailer 11
-
$3,139 CAD
$2,243 USD
View
B
Retailer 12
-
$4,346 CAD
$3,105 USD
View
B+
Retailer 13
-
$4,518 CAD
£2,542 GBP
View
B
Retailer 14
-
$4,567 CAD
$3,263 USD
View
Most Expensive
B
Brilliant Earth
21304716A · Oct 29
$5,850 CAD
$4,180 USD
View
14 more retailers have this diamond
Prices start from $847 CADSave up to $5,004 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
4.78ct Radiant
$847 CAD