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Cushion|Lab Grown|IGI

4.78ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG847661603

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG847661603

Diamond specifications and retailer prices

From $688 USD
£542 GBP
As of October 27, 2026
Save $4,172 USD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,860 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

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 very-good cut grade and certified by IGI LG847661603 or 847661603. Listed at 15 retailers as of October 27, 2026, with prices from $688 to $4,860, a $4,172 spread on the same certified stone. Brilliant Earth lists it at $4,860. 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

4.78
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847661603
Dimensions11.04 × 8.47 × 5.83 mm
L/W Ratio1.30
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.04 mm8.47 mm4.78 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847661603
Side View
Table 61.0%Crown 34.5°Girdle: MED-THKPavilion 34.4°Culet: NoneDepth 68.8%

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: $1,179 USD|Low: $687 USD|High: $3,655 USD|Avg: $1,806 USD|-1.1%
Retailer 1
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
October 31, 2026
Retailer 12$688 USD
Retailer 5$742 USD
Retailer 10$883 USD
Retailer 14$945 USD
Retailer 4$1,143 USD
Retailer 1$1,179 USD
Retailer 13$1,222 USD
Retailer 2$1,253 USD
Retailer 3$1,940 USD
Retailer 6$2,547 USD
Retailer 8$2,565 USD
Retailer 7$2,653 USD
Retailer 15$3,244 USD
Retailer 9$3,603 USD
Retailer 11$3,655 USD

6 data points across 15 retailers

15 retailers$688 USD to $4,860 USD

A
Cheapest Retailer
-
$688 USD
£542 GBP
A
Retailer 2
-
$883 USD
HK$6,900 HKD
View
Retailer 3
-
$945 USD
View
Price last confirmed 5 days ago
Retailer 4
-
$1,143 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$1,179 USD
€1,123 EUR
View
A
Retailer 6
-
$1,222 USD
£963 GBP
View
Retailer 7
-
$1,253 USD
View
Price last confirmed 6 days ago
B+
Retailer 8
-
$1,940 USD
View
Retailer 9
-
$2,547 USD
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$2,565 USD
SGD 3,466 SGD
View
B+
Retailer 11
-
$2,653 USD
View
B
Retailer 12
-
$3,244 USD
£2,554 GBP
View
B
Retailer 13
-
$3,603 USD
View
B
Retailer 14
-
$3,655 USD
View
Most Expensive
B
Brilliant Earth
22307796A · Nov 2
$4,860 USD
View
14 more retailers have this diamond
Prices start from $688 USDSave up to $4,172 USD

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
$688 USD