CaratHunter
Plans
Cushion|Lab Grown|IGI

4.78ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG849663289

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG849663289

Diamond specifications and retailer prices

From $1,099 USD
€1,047 EUR
As of October 31, 2026
Save $2,551 USD (70%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,650 USD at Rare Carat · As of October 28, 2026
View at Rare Carat

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 LG849663289 or 849663289. Listed at 6 retailers as of October 28, 2026, with prices from $1,099 to $3,650, a $2,551 spread on the same certified stone. Rare Carat lists it at $3,650. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849663289
Dimensions12.60 × 8.51 × 5.64 mm
L/W Ratio1.48
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.60 mm8.51 mm4.78 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG849663289
Side View
Table 64.0%Crown 34.9°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 66.3%

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 31
Current: $1,099 USD|Low: $1,099 USD|High: $3,322 USD|Avg: $2,247 USD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 1$1,099 USD
Retailer 3$1,141 USD
Retailer 2$2,192 USD
Retailer 5$2,580 USD
Retailer 4$3,322 USD

4 data points across 5 retailers

6 retailers$1,099 USD to $3,650 USD

A
Cheapest Retailer
-
$1,099 USD
€1,047 EUR
A
Retailer 2
-
$1,141 USD
View
B+
Retailer 3
-
$2,192 USD
View
B+
Retailer 4
-
$2,580 USD
View
B
Retailer 5
-
$3,322 USD
View
Most Expensive
B
Rare Carat
LGLCU40-184851 · Oct 28
$3,650 USD
View
5 more retailers have this diamond
Prices start from $1,099 USDSave up to $2,551 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
$1,099 USD