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Cushion|Lab Grown|IGI

3.10ct E VVS1 Cushion Lab Grown Diamond

EX • E/VVS1 • IGI LG826665919

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG826665919

Diamond specifications and retailer prices

From £639 GBP
$856 USD
As of October 28, 2026
Save £5,250 GBP (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £5,889 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

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 top-tier cut grade and certified by IGI LG826665919 or 826665919. Listed at 15 retailers as of October 28, 2026, with prices from £639 to £5,889, a £5,250 spread on the same certified stone. Brilliant Earth lists it at £5,889. 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

3.10
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.5°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826665919
Dimensions10.86 × 7.50 × 4.86 mm
L/W Ratio1.45
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.86 mm7.50 mm3.10 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826665919
Side View
Table 63.0%Crown 30.5°Girdle: MED-STKPavilion 34.2°Culet: NoneDepth 64.8%

Caratlytics Score

How it works →
A
Excellent
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 28
Current: £5,889 GBP|Low: £639 GBP|High: £6,068 GBP|Avg: £1,993 GBP|-3.0%
Brilliant Earth
Retailer 2
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Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 28, 2026
Retailer 3£639 GBP
Retailer 11£713 GBP
Retailer 10£796 GBP
Retailer 7£850 GBP
Retailer 16£1,034 GBP
Retailer 13£1,034 GBP
Retailer 2£1,040 GBP
Retailer 6£1,106 GBP
Retailer 4£1,754 GBP
Retailer 12£1,980 GBP
Retailer 17£2,098 GBP
Retailer 8£2,150 GBP
Retailer 5£2,439 GBP
Retailer 14£2,562 GBP
Retailer 15£3,004 GBP
Retailer 9£3,208 GBP
Brilliant Earth£5,889 GBP

15 data points across 17 retailers

15 retailers£639 GBP to £5,889 GBP

A
Cheapest Retailer
-
£639 GBP
$856 USD
Final sale: no returns
A
Retailer 2
-
£713 GBP
$955 USD
View
A
Retailer 3
-
£796 GBP
View
A
Retailer 4
-
£850 GBP
HK$8,900 HKD
View
A
Retailer 5
-
£1,034 GBP
$1,385 USD
View
A
Retailer 6
-
£1,034 GBP
€1,320 EUR
View
A
Retailer 7
-
£1,040 GBP
View
A
Retailer 8
-
£1,106 GBP
$1,482 USD
View
B+
Retailer 9
-
£1,754 GBP
$2,350 USD
View
B+
Retailer 10
-
£1,980 GBP
$2,653 USD
View
B+
Retailer 11
-
£2,098 GBP
$2,811 USD
View
B
Retailer 12
-
£2,439 GBP
$3,268 USD
View
B
Retailer 13
-
£2,562 GBP
View
Retailer 14
-
£3,004 GBP
$4,025 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21192147Y · Oct 28
£5,889 GBP
$7,890 USD
View
14 more retailers have this diamond
Prices start from £639 GBPSave up to £5,250 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
£639 GBP