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Cushion|Lab Grown|IGI

3.08ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG720536037

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

Certificate IGI LG720536037

Diamond specifications and retailer prices

From £1,099 GBP
$1,463 USD
As of October 29, 2026
Save £6,591 GBP (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £7,690 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.08ct lab-grown cushion diamond

This 3.08ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG720536037 or 720536037. Listed at 15 retailers as of October 29, 2026, with prices from £1,099 to £7,690, a £6,591 spread on the same certified stone. Brilliant Earth lists it at £7,690. 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

3.08
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle32.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720536037
Dimensions8.15 × 8.13 × 5.26 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.15 mm8.13 mm3.08 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720536037
Side View
Table 62.0%Crown 34.1°Girdle: THK-VTKPavilion 32.9°Culet: NoneDepth 64.7%

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: Oct 29
Current: £7,690 GBP|Low: £1,099 GBP|High: £7,690 GBP|Avg: £2,611 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 4£1,099 GBP
Retailer 7£1,190 GBP
Retailer 10£1,269 GBP
Retailer 12£1,367 GBP
Retailer 2£1,604 GBP
Retailer 13£1,800 GBP
Retailer 9£2,162 GBP
Retailer 14£2,355 GBP
Retailer 3£2,574 GBP
Retailer 8£2,642 GBP
Retailer 15£2,747 GBP
Retailer 6£3,265 GBP
Retailer 11£3,661 GBP
Retailer 5£3,996 GBP
Brilliant Earth£7,690 GBP

42 data points across 15 retailers

15 retailers£1,099 GBP to £7,690 GBP

A
Cheapest Retailer
-
£1,099 GBP
$1,463 USD
Final sale: no returns
Retailer 2
-
£1,190 GBP
$1,585 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
£1,269 GBP
$1,690 USD
View
A
Retailer 4
-
£1,367 GBP
$1,820 USD
View
A
Retailer 5
-
£1,604 GBP
View
A
Retailer 6
-
£1,800 GBP
$2,397 USD
View
A
Retailer 7
-
£2,162 GBP
€2,742 EUR
View
A
Retailer 8
-
£2,355 GBP
$3,136 USD
View
Retailer 9
-
£2,574 GBP
A$5,274 AUD
View
Price last confirmed 7 days ago
A
Retailer 10
-
£2,642 GBP
ZAR 56,847 ZAR
View
A
Retailer 11
-
£2,747 GBP
View
A
Retailer 12
-
£3,265 GBP
$4,348 USD
View
B+
Retailer 13
-
£3,661 GBP
View
B+
Retailer 14
-
£3,996 GBP
$5,321 USD
View
Most Expensive
B
Brilliant Earth
21027018A · Oct 29
£7,690 GBP
$10,240 USD
View
14 more retailers have this diamond
Prices start from £1,099 GBPSave up to £6,591 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
3.08ct Cushion
£1,099 GBP