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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 $754 USD
£593 GBP
As of October 26, 2026
9 retailers carry this diamond
Most expensive: $3,317 USD 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 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
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

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: $3,317 USD|Low: $754 USD|High: $9,710 USD|Avg: $2,738 USD
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
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Retailer 16
October 26, 2026
Retailer 9$754 USD
Retailer 7$912 USD
Retailer 10$1,020 USD
Retailer 12$1,288 USD
Retailer 2$1,341 USD
Retailer 15$1,471 USD
Retailer 16$1,820 USD
Retailer 13$1,963 USD
Retailer 3$2,318 USD
Retailer 5$2,523 USD
Retailer 8$2,758 USD
Retailer 11$2,851 USD
Retailer 14$2,907 USD
MOH London$3,317 USD
Retailer 4$4,245 USD
Retailer 6$9,710 USD

4 data points across 16 retailers

9 retailers$754 USD to $3,317 USD

Retailer 1
-
$754 USD
£593 GBP
Price last confirmed 7 days ago
Retailer 2
-
$1,020 USD
View
Price last confirmed 6 days ago
Retailer 3
-
$1,288 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$1,341 USD
£1,056 GBP
View
Price last confirmed 7 days ago
Retailer 5
-
$1,471 USD
View
Price last confirmed 10 days ago
Retailer 6
-
$1,963 USD
View
Price last confirmed 7 days ago
Retailer 7
-
$2,851 USD
View
Price last confirmed 8 days ago
Retailer 8
-
$2,907 USD
View
Price last confirmed 7 days ago
Most Expensive
MOH London
LG691593259 · Oct 25
$3,317 USD
£2,612 GBP
View
Price last confirmed 8 days ago
8 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
$754 USD