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Cushion|Lab Grown|IGI

3.10ct E VVS1 Cushion Lab Grown Diamond

VG • E/VVS1 • IGI LG821650603

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

Certificate IGI LG821650603

Diamond specifications and retailer prices

From £570 GBP
$764 USD
As of October 29, 2026
Save £1,925 GBP (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,577 GBP at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 3.1ct lab-grown cushion diamond

This 3.1ct 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 LG821650603 or 821650603. Listed at 15 retailers as of October 25, 2026, with a 338% 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

3.10
Carat
E
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821650603
Dimensions8.83 × 8.60 × 5.34 mm
L/W Ratio1.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.83 mm8.60 mm3.10 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821650603
Side View
Table 66.0%Crown 35.2°Girdle: MED-THKPavilion 38°Culet: NoneDepth 62.1%

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 29
Current: £2,577 GBP|Low: £570 GBP|High: £2,583 GBP|Avg: £1,489 GBP|+1.3%
Novita Diamonds
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 4£570 GBP
Retailer 14£591 GBP
Retailer 2£688 GBP
Retailer 12£731 GBP
Retailer 13£847 GBP
Retailer 8£947 GBP
Retailer 11£1,335 GBP
Retailer 9£1,373 GBP
Retailer 7£1,402 GBP
Retailer 5£1,843 GBP
Retailer 3£2,017 GBP
Retailer 6£2,040 GBP
Retailer 15£2,041 GBP
Retailer 10£2,495 GBP
Novita Diamonds£2,577 GBP

43 data points across 15 retailers

15 retailers£570 GBP to £2,495 GBP

A
Cheapest Retailer
-
£570 GBP
$764 USD
Final sale: no returns
Retailer 2
-
£591 GBP
$792 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
£688 GBP
View
A
Retailer 4
-
£731 GBP
$980 USD
View
A
Retailer 5
-
£847 GBP
$1,135 USD
View
A
Retailer 6
-
£947 GBP
View
Retailer 7
-
£1,335 GBP
A$2,751 AUD
View
Price last confirmed 9 days ago
A
Retailer 8
-
£1,373 GBP
ZAR 29,721 ZAR
View
B+
Retailer 9
-
£1,402 GBP
$1,878 USD
View
B+
Retailer 10
-
£1,843 GBP
View
B
Retailer 11
-
£2,017 GBP
$2,703 USD
View
B
Retailer 12
-
£2,040 GBP
$2,733 USD
View
B
Retailer 13
-
£2,041 GBP
$2,735 USD
View
B
Retailer 14
-
£2,495 GBP
View
Most Expensive
Novita Diamonds
cert_821650603 · Oct 8
£2,577 GBP
A$5,313 AUD
View
Price last confirmed 22 days ago
14 more retailers have this diamond
Prices start from £570 GBPSave up to £1,925 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
3.10ct Cushion
£570 GBP