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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 $1,075 AUD
£593 GBP
As of October 26, 2026
8 retailers carry this diamond
Most expensive: $4,733 AUD 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 8 retailers as of October 25, 2026. 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
Colour
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

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 26
Current: $4,733 AUD|Low: $1,075 AUD|High: $13,855 AUD|Avg: $3,907 AUD
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$1,075 AUD
Retailer 7$1,301 AUD
Retailer 10$1,455 AUD
Retailer 12$1,838 AUD
Retailer 2$1,913 AUD
Retailer 15$2,099 AUD
Retailer 16$2,596 AUD
Retailer 13$2,801 AUD
Retailer 3$3,308 AUD
Retailer 5$3,600 AUD
Retailer 8$3,936 AUD
Retailer 11$4,068 AUD
Retailer 14$4,149 AUD
MOH London$4,733 AUD
Retailer 4$6,057 AUD
Retailer 6$13,855 AUD

4 data points across 16 retailers

8 retailers$1,075 AUD to $4,733 AUD

Retailer 1
-
$1,075 AUD
£593 GBP
Price last confirmed 7 days ago
Retailer 2
-
$1,838 AUD
$1,288 USD
View
Price last confirmed 7 days ago
Retailer 3
-
$1,913 AUD
£1,056 GBP
View
Price last confirmed 7 days ago
Retailer 4
-
$2,099 AUD
$1,471 USD
View
Price last confirmed 10 days ago
Retailer 5
-
$2,801 AUD
$1,963 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$4,068 AUD
$2,851 USD
View
Price last confirmed 9 days ago
Retailer 7
-
$4,149 AUD
$2,907 USD
View
Price last confirmed 7 days ago
Most Expensive
MOH London
LG691593259 · Oct 25
$4,733 AUD
£2,612 GBP
View
Price last confirmed 8 days ago
7 more retailers have this diamond

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.

4.78ct Cushion
$1,075 AUD