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Cushion|Lab Grown|IGI

3.51ct G VS2 Cushion Lab Grown Diamond

VG • G/VS2 • IGI LG841661523

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG841661523

Diamond specifications and retailer prices

From £478 GBP
HK$5,000 HKD
As of November 1, 2026
Save £1,888 GBP (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,366 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG841661523 or 841661523. Listed at 14 retailers as of October 31, 2026, with prices from £478 to £2,366, a £1,888 spread on the same certified stone. Brilliant Earth lists it at £2,366. 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
G
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle30.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841661523
Dimensions10.16 × 7.86 × 4.93 mm
L/W Ratio1.29
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.16 mm7.86 mm3.51 ctG / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841661523
Side View
Table 60.0%Crown 38.1°Girdle: MED-STKPavilion 30.9°Culet: NoneDepth 62.7%

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: Nov 1
Current: £2,366 GBP|Low: £395 GBP|High: £2,366 GBP|Avg: £1,026 GBP|+0.6%
Brilliant Earth
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 31, 2026
Retailer 7£395 GBP
Retailer 14£478 GBP
Retailer 3£497 GBP
Retailer 11£541 GBP
Retailer 2£639 GBP
Retailer 4£683 GBP
Retailer 12£722 GBP
Retailer 5£849 GBP
Retailer 10£1,014 GBP
Retailer 8£1,389 GBP
Retailer 13£1,610 GBP
Retailer 6£1,638 GBP
Retailer 15£1,657 GBP
Retailer 9£1,907 GBP
Brilliant Earth£2,366 GBP

23 data points across 15 retailers

14 retailers£478 GBP to £2,366 GBP

A
Cheapest Retailer
-
£478 GBP
HK$5,000 HKD
Retailer 2
-
£497 GBP
View
Price last confirmed 15 days ago
A
Retailer 3
-
£541 GBP
$725 USD
View
A
Retailer 4
-
£639 GBP
€815 EUR
View
B+
Retailer 5
-
£683 GBP
$915 USD
View
A
Retailer 6
-
£722 GBP
View
A
Retailer 7
-
£849 GBP
$1,138 USD
View
B+
Retailer 8
-
£1,014 GBP
$1,358 USD
View
B+
Retailer 9
-
£1,389 GBP
SGD 2,515 SGD
View
B+
Retailer 10
-
£1,610 GBP
View
B
Retailer 11
-
£1,638 GBP
$2,195 USD
View
Retailer 12
-
£1,657 GBP
$2,220 USD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
£1,907 GBP
$2,555 USD
View
Most Expensive
B
Brilliant Earth
21807560A · Oct 31
£2,366 GBP
$3,170 USD
View
13 more retailers have this diamond
Prices start from £478 GBPSave up to £1,888 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
£478 GBP