CaratHunter
Plans
Cushion|Lab Grown|IGI

3.05ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG711526696

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG711526696

Diamond specifications and retailer prices

From £1,131 GBP
$1,515 USD
As of October 31, 2026
Save £4,220 GBP (79%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £5,351 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.05ct lab-grown cushion diamond

This 3.05ct 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 LG711526696 or 711526696. Listed at 18 retailers as of October 31, 2026, with prices from £1,131 to £5,351, a £4,220 spread on the same certified stone. Brilliant Earth lists it at £5,351. 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

3.05
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG711526696
Dimensions7.82 × 7.82 × 5.28 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
7.82 mm7.82 mm3.05 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG711526696
Side View
Table 61.0%Crown 37.3°Girdle: MED-STKPavilion 37°Culet: NoneDepth 67.5%

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 31
Current: £5,351 GBP|Low: £978 GBP|High: £5,515 GBP|Avg: £2,322 GBP|-3.0%
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
Retailer 18
October 31, 2026
Retailer 4£1,014 GBP
Retailer 16£1,131 GBP
Retailer 6£1,257 GBP
Retailer 11£1,470 GBP
Retailer 18£1,524 GBP
Retailer 2£1,614 GBP
Retailer 13£1,755 GBP
Retailer 12£1,858 GBP
Retailer 3£2,268 GBP
Retailer 17£2,286 GBP
Retailer 14£2,353 GBP
Retailer 7£2,617 GBP
Retailer 10£2,798 GBP
Retailer 5£2,804 GBP
Retailer 9£3,202 GBP
Retailer 15£3,274 GBP
Retailer 8£3,549 GBP
Brilliant Earth£5,351 GBP

36 data points across 18 retailers

18 retailers£1,131 GBP to £5,351 GBP

Retailer 1
-
£1,014 GBP
$1,358 USD
Price last confirmed 19 days ago
A
Retailer 2
-
£1,131 GBP
$1,515 USD
View
A
Retailer 3
-
£1,257 GBP
$1,684 USD
View
A
Retailer 4
-
£1,470 GBP
View
A
Retailer 5
-
£1,524 GBP
$2,042 USD
View
A
Retailer 6
-
£1,614 GBP
€2,060 EUR
View
A
Retailer 7
-
£1,755 GBP
$2,352 USD
View
Final sale: no returns
A
Retailer 8
-
£1,858 GBP
$2,490 USD
View
A
Retailer 9
-
£2,268 GBP
$3,039 USD
View
Retailer 10
-
£2,286 GBP
A$4,713 AUD
View
Price last confirmed 10 days ago
A
Retailer 11
-
£2,353 GBP
ZAR 50,936 ZAR
View
A
Retailer 12
-
£2,617 GBP
$3,506 USD
View
A
Retailer 13
-
£2,798 GBP
View
A
Retailer 14
-
£2,804 GBP
$3,757 USD
View
B+
Retailer 15
-
£3,202 GBP
$4,291 USD
View
B+
Retailer 16
-
£3,274 GBP
View
B+
Retailer 17
-
£3,549 GBP
$4,755 USD
View
Most Expensive
B
Brilliant Earth
14755328A · Oct 31
£5,351 GBP
$7,170 USD
View
17 more retailers have this diamond
Prices start from £1,131 GBPSave up to £4,220 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
3.05ct Cushion
£1,131 GBP