Cushion|Lab Grown|IGI

3.45ct E VVS1 Cushion Lab Grown Diamond

EX • E/VVS1 • IGI LG840652918

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

Certificate IGI LG840652918

Diamond specifications and retailer prices

From £1,325 GBP
$1,775 USD
As of October 31, 2026
Save £1,509 GBP (53%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,217 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 3.45ct lab-grown cushion diamond

This 3.45ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840652918 or 840652918. Listed at 6 retailers as of October 31, 2026, with a 114% 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

3.45
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840652918
Dimensions9.05 × 8.92 × 5.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.05 mm8.92 mm3.45 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840652918
Side View
Table 61.0%Crown 32.6°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 63.8%

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: £3,217 GBP|Low: £1,325 GBP|High: £3,217 GBP|Avg: £2,221 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 6£1,325 GBP
Retailer 3£1,337 GBP
Retailer 5£2,186 GBP
Retailer 4£2,209 GBP
Retailer 2£2,834 GBP
Rare Carat£3,217 GBP

4 data points across 6 retailers

6 retailers£1,325 GBP to £2,834 GBP

A
Cheapest Retailer
-
£1,325 GBP
$1,775 USD
A
Retailer 2
-
£1,337 GBP
$1,791 USD
View
B+
Retailer 3
-
£2,186 GBP
$2,929 USD
View
B+
Retailer 4
-
£2,209 GBP
SGD 4,000 SGD
View
B
Retailer 5
-
£2,834 GBP
A$5,841 AUD
View
Most Expensive
Rare Carat
LA2655 · Oct 21
£3,217 GBP
$4,310 USD
View
Price last confirmed 10 days ago
5 more retailers have this diamond
Prices start from £1,325 GBPSave up to £1,509 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
3.45ct Cushion
£1,325 GBP