CaratHunter
Plans
Cushion|Lab Grown|IGI

4.78ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG691593259

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG691593259

Diamond specifications and retailer prices

From $1,053 CAD
£593 GBP
As of October 26, 2026
Save $3,009 CAD (74%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,634 CAD at MOH London · As of October 25, 2026
View at MOH London

About this 4.78ct lab-grown cushion diamond

This 4.78ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG691593259 or 691593259. Listed at 9 retailers as of October 26, 2026, with a 286% 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

4.78
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle30.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691593259
Dimensions9.72 × 9.27 × 5.78 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.72 mm9.27 mm4.78 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691593259
Side View
Table 65.0%Crown 34.8°Girdle: MED-THKPavilion 30.6°Culet: NoneDepth 62.4%

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 26
Current: $4,634 CAD|Low: $1,053 CAD|High: $13,564 CAD|Avg: $3,825 CAD
MOH London
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
October 26, 2026
Retailer 9$1,053 CAD
Retailer 7$1,274 CAD
Retailer 10$1,425 CAD
Retailer 12$1,799 CAD
Retailer 2$1,873 CAD
Retailer 15$2,055 CAD
Retailer 16$2,542 CAD
Retailer 13$2,742 CAD
Retailer 3$3,238 CAD
Retailer 5$3,525 CAD
Retailer 8$3,853 CAD
Retailer 11$3,983 CAD
Retailer 14$4,061 CAD
MOH London$4,634 CAD
Retailer 4$5,930 CAD
Retailer 6$13,564 CAD

4 data points across 16 retailers

9 retailers$1,053 CAD to $4,061 CAD

A
Cheapest Retailer
-
$1,053 CAD
£593 GBP
Retailer 2
-
$1,425 CAD
$1,020 USD
View
Price last confirmed 6 days ago
A
Retailer 3
-
$1,799 CAD
$1,288 USD
View
A
Retailer 4
-
$1,873 CAD
£1,056 GBP
View
Retailer 5
-
$2,055 CAD
$1,471 USD
View
Price last confirmed 9 days ago
Retailer 6
-
$2,742 CAD
$1,963 USD
View
Price last confirmed 7 days ago
Retailer 7
-
$3,983 CAD
$2,851 USD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$4,061 CAD
$2,907 USD
View
Most Expensive
MOH London
LG691593259 · Oct 25
$4,634 CAD
£2,612 GBP
View
Price last confirmed 7 days ago
8 more retailers have this diamond
Prices start from $1,053 CADSave up to $3,009 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 Cushion
$1,053 CAD