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Cushion|Lab Grown|IGI

3.51ct E VVS1 Cushion Lab Grown Diamond

VG • E/VVS1 • IGI LG768660892

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG768660892

Diamond specifications and retailer prices

From £723 GBP
$969 USD
As of October 31, 2026
Save £1,919 GBP (73%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,079 GBP at Rare Carat · As of October 14, 2026
View at Rare Carat

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG768660892 or 768660892. Listed at 19 retailers as of October 29, 2026, with a 265% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.51
Carat
E
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.9°
Pavilion angle31.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768660892
Dimensions7.42 × 7.42 × 4.85 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.42 mm7.42 mm3.51 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768660892
Side View
Table 66.0%Crown 42.9°Girdle: MED-THKPavilion 31.8°Culet: NoneDepth 65.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £3,067 GBP|Low: £676 GBP|High: £3,067 GBP|Avg: £1,673 GBP
Rare Carat
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
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 17£723 GBP
Retailer 15£812 GBP
Retailer 3£843 GBP
Retailer 7£935 GBP
Retailer 4£1,004 GBP
Retailer 2£1,076 GBP
Retailer 11£1,114 GBP
Retailer 18£1,469 GBP
Retailer 12£1,583 GBP
Retailer 14£1,628 GBP
Retailer 6£1,778 GBP
Retailer 5£1,934 GBP
Retailer 16£2,194 GBP
Retailer 8£2,343 GBP
Retailer 9£2,357 GBP
Retailer 10£2,426 GBP
Retailer 13£2,643 GBP
Rare Carat£3,067 GBP

31 data points across 18 retailers

19 retailers£723 GBP to £2,643 GBP

A
Cheapest Retailer
-
£723 GBP
$969 USD
Final sale: no returns
A
Retailer 2
-
£812 GBP
HK$8,500 HKD
View
A
Retailer 3
-
£843 GBP
$1,130 USD
View
A
Retailer 4
-
£935 GBP
$1,253 USD
View
A
Retailer 5
-
£1,004 GBP
$1,345 USD
View
A
Retailer 6
-
£1,076 GBP
View
A
Retailer 7
-
£1,114 GBP
€1,422 EUR
View
A
Retailer 8
-
£1,469 GBP
$1,968 USD
View
B+
Retailer 9
-
£1,583 GBP
A$3,264 AUD
View
A
Retailer 10
-
£1,628 GBP
ZAR 35,239 ZAR
View
B+
Retailer 11
-
£1,778 GBP
$2,382 USD
View
B+
Retailer 12
-
£1,934 GBP
View
B+
Retailer 13
-
£2,194 GBP
$2,940 USD
View
B+
Retailer 14
-
£2,343 GBP
$3,140 USD
View
B+
Retailer 15
-
£2,357 GBP
SGD 4,267 SGD
View
B+
Retailer 16
-
£2,426 GBP
$3,251 USD
View
B+
Retailer 17
-
£2,643 GBP
View
Retailer 18
-
£3,067 GBP
$4,110 USD
View
Our latest check could not confirm this price
Most Expensive
Rare Carat
T-33 · Sep 28
£3,079 GBP
$4,125 USD
View
Price last confirmed 18 days ago
18 more retailers have this diamond
Prices start from £723 GBPSave up to £1,919 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
3.51ct Cushion
£723 GBP