CaratHunter
Plans
Cushion|Lab Grown|IGI

3.43ct L VS1 Cushion Lab Grown Diamond

ID • L/VS1 • IGI LG828657635

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG828657635

Diamond specifications and retailer prices

From £1,329 GBP
As of November 6, 2026
Save £1,595 GBP (55%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,924 GBP at Cape Diamonds · As of November 3, 2026
View at Cape Diamonds

About this 3.43ct lab-grown cushion diamond

This 3.43ct 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 LG828657635 or 828657635. Listed at 6 retailers as of November 3, 2026, with prices from £1,329 to £2,924, a £1,595 spread on the same certified stone. Cape Diamonds lists it at £2,924. 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

3.43
Carat
L
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828657635
Dimensions10.58 × 7.73 × 5.27 mm
L/W Ratio1.37
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
10.58 mm7.73 mm3.43 ctL / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828657635
Side View
Table 44.0%Crown 38.6°Girdle: STK-THKPavilion 39.1°Culet: LargeDepth 68.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,924 GBP|Low: £1,146 GBP|High: £3,198 GBP|Avg: £1,793 GBP|+11.9%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6£1,329 GBP
Retailer 5£1,370 GBP
Retailer 4£1,386 GBP
Retailer 3£1,798 GBP
Retailer 2£2,243 GBP
Cape Diamonds£2,924 GBP

26 data points across 6 retailers

6 retailers£1,329 GBP to £2,924 GBP

B+
Cheapest Retailer
-
£1,329 GBP
Retailer 2
-
£1,370 GBP
View
Price last confirmed 26 days ago
B+
Retailer 3
-
£1,386 GBP
View
B
Retailer 4
-
£1,798 GBP
View
C
Retailer 5
-
£2,243 GBP
View
Most Expensive
B
Cape Diamonds
cert_828657635 · Nov 3
£2,924 GBP
ZAR 63,225 ZAR
View
5 more retailers have this diamond
Prices start from £1,329 GBPSave up to £1,595 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.

B+
3.43ct Cushion
£1,329 GBP