CaratHunter
Plans
Cushion|Lab Grown|IGI

3.40ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG846643518

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846643518

Diamond specifications and retailer prices

From £626 GBP
$839 USD
As of October 30, 2026
Save £1,850 GBP (75%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,476 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 3.4ct lab-grown cushion diamond

This 3.4ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG846643518 or 846643518. Listed at 15 retailers as of October 25, 2026, with prices from £626 to £2,476, a £1,850 spread on the same certified stone. MOH London lists it at £2,476. 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

3.40
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846643518
Dimensions10.73 × 7.63 × 4.90 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.73 mm7.63 mm3.40 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846643518
Side View
Table 67.0%Crown 38.5°Girdle: MED-STKPavilion 33.5°Culet: NoneDepth 64.2%

Caratlytics Score

How it works →
A+
Exceptional
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 30
Current: £2,476 GBP|Low: £626 GBP|High: £2,561 GBP|Avg: £1,538 GBP|-3.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 2£626 GBP
Retailer 4£795 GBP
Retailer 8£832 GBP
Retailer 3£931 GBP
Retailer 6£942 GBP
Retailer 12£994 GBP
Retailer 10£1,045 GBP
Retailer 13£1,511 GBP
Retailer 7£1,533 GBP
Retailer 5£1,826 GBP
Retailer 14£2,113 GBP
Retailer 9£2,183 GBP
Retailer 11£2,237 GBP
Retailer 15£2,326 GBP
MOH London£2,476 GBP

11 data points across 15 retailers

15 retailers£626 GBP to £2,476 GBP

A+
Cheapest Retailer
-
£626 GBP
$839 USD
Final sale: no returns
A
Retailer 2
-
£795 GBP
$1,065 USD
View
A
Retailer 3
-
£832 GBP
View
A
Retailer 4
-
£931 GBP
$1,248 USD
View
A
Retailer 5
-
£942 GBP
$1,262 USD
View
A
Retailer 6
-
£994 GBP
€1,269 EUR
View
A
Retailer 7
-
£1,045 GBP
View
A
Retailer 8
-
£1,511 GBP
ZAR 32,703 ZAR
View
Retailer 9
-
£1,533 GBP
A$3,161 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£1,826 GBP
$2,446 USD
View
B+
Retailer 11
-
£2,113 GBP
$2,831 USD
View
B+
Retailer 12
-
£2,183 GBP
SGD 3,953 SGD
View
B+
Retailer 13
-
£2,237 GBP
$2,997 USD
View
B+
Retailer 14
-
£2,326 GBP
$3,116 USD
View
Most Expensive
B+
MOH London
LG846643518 · Oct 25
£2,476 GBP
View
14 more retailers have this diamond
Prices start from £626 GBPSave up to £1,850 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+
3.40ct Cushion
£626 GBP