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Cushion|Lab Grown|IGI

4.81ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG823601692

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

Certificate IGI LG823601692

Diamond specifications and retailer prices

From £524 GBP
$703 USD
As of November 1, 2026
Save £194 GBP (27%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,657 GBP at Brilliance · As of October 5, 2026
View at Brilliance

About this 4.81ct lab-grown cushion diamond

This 4.81ct 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 LG823601692 or 823601692. Listed at 3 retailers as of October 28, 2026, with a 37% 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

4.81
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823601692
Dimensions10.06 × 9.86 × 6.51 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.06 mm9.86 mm4.81 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823601692
Side View
Table 61.0%Crown 34°Girdle: MED-STKPavilion 40°Culet: NoneDepth 66.0%

Caratlytics Score

How it works →
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: Nov 1
Current: £1,657 GBP|Low: £524 GBP|High: £3,927 GBP|Avg: £1,803 GBP|-10.1%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 26, 2026
Retailer 3£524 GBP
Retailer 2£718 GBP
Retailer 5£885 GBP
Brilliance£1,657 GBP
Retailer 6£2,037 GBP
Retailer 4£3,927 GBP

9 data points across 6 retailers

3 retailers£524 GBP to £718 GBP

A
Cheapest Retailer
-
£524 GBP
$703 USD
Final sale: no returns
B+
Retailer 2
-
£718 GBP
$963 USD
View
Most Expensive
Brilliance
D45376141 · Oct 5
£1,657 GBP
$2,224 USD
View
Price last confirmed 28 days ago
2 more retailers have this diamond
Prices start from £524 GBPSave up to £194 GBP

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
4.81ct Cushion
£524 GBP