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Cushion|Lab Grown|IGI

3.54ct L VS1 Cushion Lab Grown Diamond

ID • L/VS1 • IGI LG807639205

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

Certificate IGI LG807639205

Diamond specifications and retailer prices

From £870 GBP
As of November 1, 2026
Save £1,769 GBP (67%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,639 GBP at Cape Diamonds · As of November 3, 2026
View at Cape Diamonds

About this 3.54ct lab-grown cushion diamond

This 3.54ct lab-grown cushion sits in the three to five carat band, graded L colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG807639205 or 807639205. Listed at 7 retailers as of November 1, 2026, with prices from £870 to £2,639, a £1,769 spread on the same certified stone. Cape Diamonds lists it at £2,639. 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

3.54
Carat
L
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle42.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807639205
Dimensions8.83 × 8.56 × 6.45 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa Faint Brown
Top View
8.83 mm8.56 mm3.54 ctL / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807639205
Side View
Table 45.0%Crown 42.6°Girdle: STK-THKPavilion 42.6°Culet: LargeDepth 75.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £2,639 GBP|Low: £870 GBP|High: £2,650 GBP|Avg: £1,553 GBP|+2.5%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 4£870 GBP
Retailer 7£1,097 GBP
Retailer 6£1,136 GBP
Retailer 8£1,263 GBP
Retailer 5£1,625 GBP
Retailer 2£1,773 GBP
Retailer 3£1,949 GBP
Cape Diamonds£2,639 GBP

28 data points across 8 retailers

7 retailers£870 GBP to £2,639 GBP

A
Cheapest Retailer
-
£870 GBP
B+
Retailer 2
-
£1,097 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,263 GBP
View
B+
Retailer 4
-
£1,625 GBP
View
B
Retailer 5
-
£1,773 GBP
View
B
Retailer 6
-
£1,949 GBP
View
Most Expensive
C
Cape Diamonds
cert_807639205 · Nov 3
£2,639 GBP
ZAR 57,069 ZAR
View
6 more retailers have this diamond
Prices start from £870 GBPSave up to £1,769 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
3.54ct Cushion
£870 GBP