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Cushion|Lab Grown|IGI

3.11ct H VVS2 Cushion Lab Grown Diamond

ID • H/VVS2 • IGI LG566327375

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG566327375

Diamond specifications and retailer prices

From £329 GBP
$441 USD
As of October 31, 2026
Save £1,574 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,336 GBP at Brilliant Earth · As of October 9, 2026
View at Brilliant Earth

About this 3.11ct lab-grown cushion diamond

This 3.11ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG566327375 or 566327375. Listed at 19 retailers as of October 29, 2026, with a 478% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.11
Carat
H
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG566327375
Dimensions9.21 × 7.93 × 5.11 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.21 mm7.93 mm3.11 ctH / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG566327375
Side View
Table 60.0%Crown 36.9°Girdle: STK-THKPavilion 34.2°Culet: NoneDepth 64.4%

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 31
Current: £3,336 GBP|Low: £329 GBP|High: £3,336 GBP|Avg: £970 GBP|+70.0%
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
Retailer 16
Retailer 17
October 31, 2026
Retailer 17£329 GBP
Retailer 9£372 GBP
Retailer 10£459 GBP
Retailer 13£491 GBP
Retailer 2£589 GBP
Retailer 12£650 GBP
Retailer 7£712 GBP
Retailer 5£768 GBP
Retailer 15£799 GBP
Retailer 6£809 GBP
Retailer 11£875 GBP
Retailer 3£1,069 GBP
Retailer 16£1,200 GBP
Retailer 14£1,353 GBP
Retailer 4£1,433 GBP
Retailer 8£1,534 GBP
Brilliant Earth£3,336 GBP

33 data points across 17 retailers

19 retailers£329 GBP to £1,903 GBP

A
Cheapest Retailer
-
£329 GBP
$441 USD
Final sale: no returns
A
Retailer 2
-
£372 GBP
$499 USD
View
A
Retailer 3
-
£459 GBP
$615 USD
View
B+
Retailer 4
-
£491 GBP
$658 USD
View
A
Retailer 5
-
£589 GBP
€752 EUR
View
A
Retailer 6
-
£650 GBP
$871 USD
View
A
Retailer 7
-
£712 GBP
CA$1,325 CAD
View
A
Retailer 8
-
£768 GBP
A$1,583 AUD
View
A
Retailer 9
-
£799 GBP
$1,071 USD
View
A
Retailer 10
-
£809 GBP
ZAR 17,508 ZAR
View
A
Retailer 11
-
£875 GBP
$1,173 USD
View
A
Retailer 12
-
£1,069 GBP
View
B+
Retailer 13
-
£1,200 GBP
$1,608 USD
View
B+
Retailer 14
-
£1,353 GBP
$1,813 USD
View
B+
Retailer 15
-
£1,433 GBP
View
Retailer 16
-
£1,534 GBP
$2,055 USD
View
Price last confirmed 12 days ago
Retailer 17
-
£1,903 GBP
$2,550 USD
View
Price last confirmed 17 days ago
B+
Retailer 18
-
£1,903 GBP
$2,550 USD
View
Most Expensive
Brilliant Earth
10204987A · Oct 9
£3,336 GBP
$4,470 USD
View
Price last confirmed 22 days ago
18 more retailers have this diamond
Prices start from £329 GBPSave up to £1,574 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
3.11ct Cushion
£329 GBP