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Cushion|Lab Grown|IGI

3.10ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG843685639

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG843685639

Diamond specifications and retailer prices

From £519 GBP
$696 USD
As of October 30, 2026
Save £2,802 GBP (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,321 GBP at Brilliant Earth · As of October 30, 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 LG843685639 or 843685639. Listed at 15 retailers as of October 30, 2026, with prices from £519 to £3,321, a £2,802 spread on the same certified stone. Brilliant Earth lists it at £3,321. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843685639
Dimensions9.03 × 7.78 × 5.56 mm
L/W Ratio1.16
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.03 mm7.78 mm3.10 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843685639
Side View
Table 57.0%Crown 35°Girdle: MED-THKPavilion 39.2°Culet: NoneDepth 71.5%

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: Oct 30
Current: £3,321 GBP|Low: £501 GBP|High: £3,321 GBP|Avg: £1,436 GBP
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 30, 2026
Retailer 10£519 GBP
Retailer 9£627 GBP
Retailer 4£627 GBP
Retailer 5£772 GBP
Retailer 14£867 GBP
Retailer 11£902 GBP
Retailer 3£1,204 GBP
Retailer 2£1,217 GBP
Retailer 12£1,381 GBP
Retailer 8£1,837 GBP
Retailer 13£1,860 GBP
Retailer 6£1,896 GBP
Retailer 15£2,419 GBP
Retailer 7£3,116 GBP
Brilliant Earth£3,321 GBP

16 data points across 15 retailers

15 retailers£519 GBP to £3,321 GBP

A
Cheapest Retailer
-
£519 GBP
$696 USD
Final sale: no returns
A
Retailer 2
-
£627 GBP
View
A
Retailer 3
-
£627 GBP
$840 USD
View
A
Retailer 4
-
£772 GBP
$1,035 USD
View
A
Retailer 5
-
£867 GBP
€1,107 EUR
View
A
Retailer 6
-
£902 GBP
View
A
Retailer 7
-
£1,204 GBP
ZAR 26,056 ZAR
View
A
Retailer 8
-
£1,217 GBP
A$2,508 AUD
View
A
Retailer 9
-
£1,381 GBP
$1,850 USD
View
B+
Retailer 10
-
£1,837 GBP
$2,462 USD
View
B+
Retailer 11
-
£1,860 GBP
$2,492 USD
View
B+
Retailer 12
-
£1,896 GBP
$2,541 USD
View
B
Retailer 13
-
£2,419 GBP
View
Retailer 14
-
£3,116 GBP
$4,175 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
22286861A · Oct 30
£3,321 GBP
$4,450 USD
View
14 more retailers have this diamond
Prices start from £519 GBPSave up to £2,802 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
£519 GBP