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Cushion|Lab Grown|IGI

3.51ct F VVS1 Cushion Lab Grown Diamond

ID • F/VVS1 • IGI LG828601932

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

Certificate IGI LG828601932

Diamond specifications and retailer prices

From £670 GBP
$899 USD
As of November 1, 2026
Save £4,412 GBP (87%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £5,082 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG828601932 or 828601932. Listed at 8 retailers as of November 1, 2026, with prices from £670 to £5,082, a £4,412 spread on the same certified stone. Do Amore Diamonds lists it at £5,082. 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

3.51
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828601932
Dimensions8.95 × 8.89 × 5.86 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
8.95 mm8.89 mm3.51 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828601932
Side View
Table 64.0%Crown 36.3°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 65.9%

Caratlytics Score

How it works →
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: Nov 1
Current: £5,082 GBP|Low: £454 GBP|High: £5,082 GBP|Avg: £2,112 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7£670 GBP
Retailer 9£1,006 GBP
Retailer 6£1,119 GBP
Retailer 4£1,122 GBP
Retailer 8£1,379 GBP
Retailer 3£1,730 GBP
Retailer 10£2,298 GBP
Retailer 5£2,854 GBP
Retailer 2£2,871 GBP
Do Amore Diamonds£5,082 GBP

24 data points across 10 retailers

8 retailers£670 GBP to £5,082 GBP

A
Cheapest Retailer
-
£670 GBP
$899 USD
Final sale: no returns
A
Retailer 2
-
£1,119 GBP
$1,502 USD
View
B+
Retailer 3
-
£1,122 GBP
$1,505 USD
View
B+
Retailer 4
-
£1,379 GBP
$1,850 USD
View
B+
Retailer 5
-
£1,730 GBP
A$3,572 AUD
View
B
Retailer 6
-
£2,854 GBP
$3,830 USD
View
B
Retailer 7
-
£2,871 GBP
View
Most Expensive
B
Do Amore Diamonds
7-1793138 · Nov 2
£5,082 GBP
$6,820 USD
View
7 more retailers have this diamond
Prices start from £670 GBPSave up to £4,412 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
£670 GBP