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Cushion|Lab Grown|IGI

3.29ct J VS1 Cushion Lab Grown Diamond

ID • J/VS1 • IGI LG843641878

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG843641878

Diamond specifications and retailer prices

From £1,259 GBP
As of November 6, 2026
Save £3,551 GBP (74%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,810 GBP at Taylor and Hart · As of November 6, 2026
View at Taylor and Hart

About this 3.29ct lab-grown cushion diamond

This 3.29ct lab-grown cushion sits in the three to five carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843641878 or 843641878. Listed at 12 retailers as of November 6, 2026, with prices from £1,259 to £4,810, a £3,551 spread on the same certified stone. Taylor and Hart lists it at £4,810. 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

3.29
Carat
J
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843641878
Dimensions10.97 × 7.76 × 4.76 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.97 mm7.76 mm3.29 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843641878
Side View
Table 53.0%Crown 35.1°Girdle: MED-STKPavilion 37.7°Culet: LargeDepth 61.3%

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: Nov 6
Current: £1,259 GBP|Low: £1,043 GBP|High: £4,810 GBP|Avg: £2,280 GBP|+3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Taylor and Hart
November 6, 2026
Retailer 1£1,259 GBP
Retailer 2£1,272 GBP
Retailer 11£1,315 GBP
Retailer 9£1,337 GBP
Retailer 8£1,436 GBP
Retailer 4£1,745 GBP
Retailer 5£2,155 GBP
Retailer 10£2,600 GBP
Retailer 7£2,806 GBP
Retailer 6£3,439 GBP
Retailer 3£3,685 GBP
Taylor and Hart£4,810 GBP

27 data points across 12 retailers

12 retailers£1,259 GBP to £4,810 GBP

A
Cheapest Retailer
-
£1,259 GBP
A
Retailer 2
-
£1,272 GBP
View
Retailer 3
-
£1,315 GBP
View
Price last confirmed 25 days ago
A
Retailer 4
-
£1,337 GBP
View
Retailer 5
-
£1,436 GBP
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£1,745 GBP
View
B+
Retailer 7
-
£2,155 GBP
View
B
Retailer 8
-
£2,600 GBP
View
B
Retailer 9
-
£2,806 GBP
View
B
Retailer 10
-
£3,439 GBP
View
B
Retailer 11
-
£3,685 GBP
View
Most Expensive
B
Taylor and Hart
KUP57GV · Nov 6
£4,810 GBP
$6,438 USD
View
11 more retailers have this diamond
Prices start from £1,259 GBPSave up to £3,551 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
3.29ct Cushion
£1,259 GBP