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Cushion|Lab Grown|IGI

3.03ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG658493915

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG658493915

Diamond specifications and retailer prices

From £1,258 GBP
$1,686 USD
As of October 31, 2026
Save £6,257 GBP (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £7,516 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.03ct lab-grown cushion diamond

This 3.03ct 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 LG658493915 or 658493915. Listed at 21 retailers as of October 31, 2026, with prices from £1,258 to £7,516, a £6,257 spread on the same certified stone. Brilliant Earth lists it at £7,516. 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

3.03
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.4°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG658493915
Dimensions10.90 × 6.76 × 4.66 mm
L/W Ratio1.61
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.90 mm6.76 mm3.03 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG658493915
Side View
Table 66.0%Crown 41.4°Girdle: MED-THKPavilion 35.2°Culet: NoneDepth 68.9%

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: £7,516 GBP|Low: £1,258 GBP|High: £7,516 GBP|Avg: £3,018 GBP
Brilliant Earth
Retailer 2
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Retailer 20
October 31, 2026
Retailer 4£1,258 GBP
Retailer 5£1,303 GBP
Retailer 19£1,429 GBP
Retailer 7£1,460 GBP
Retailer 9£1,509 GBP
Retailer 14£1,840 GBP
Retailer 17£1,864 GBP
Retailer 15£2,029 GBP
Retailer 13£2,079 GBP
Retailer 3£2,326 GBP
Retailer 16£3,026 GBP
Retailer 12£3,151 GBP
Retailer 10£3,214 GBP
Retailer 2£3,511 GBP
Retailer 18£3,727 GBP
Retailer 6£3,999 GBP
Retailer 8£4,358 GBP
Retailer 11£4,582 GBP
Retailer 20£5,758 GBP
Brilliant Earth£7,516 GBP

33 data points across 20 retailers

21 retailers£1,258 GBP to £7,516 GBP

A
Cheapest Retailer
-
£1,258 GBP
$1,686 USD
Final sale: no returns
Retailer 2
-
£1,303 GBP
$1,746 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
£1,429 GBP
$1,915 USD
View
A
Retailer 4
-
£1,460 GBP
$1,956 USD
View
A
Retailer 5
-
£1,509 GBP
HK$15,800 HKD
View
A
Retailer 6
-
£1,840 GBP
View
A
Retailer 7
-
£1,864 GBP
$2,498 USD
View
A
Retailer 8
-
£2,029 GBP
$2,719 USD
View
A
Retailer 9
-
£2,079 GBP
€2,653 EUR
View
A
Retailer 10
-
£2,326 GBP
$3,116 USD
View
A
Retailer 11
-
£3,026 GBP
ZAR 65,496 ZAR
View
A
Retailer 12
-
£3,151 GBP
View
A
Retailer 13
-
£3,214 GBP
$4,306 USD
View
A
Retailer 14
-
£3,356 GBP
$4,497 USD
View
B+
Retailer 15
-
£3,511 GBP
$4,705 USD
View
B+
Retailer 16
-
£3,727 GBP
View
B+
Retailer 17
-
£3,999 GBP
$5,358 USD
View
B+
Retailer 18
-
£4,358 GBP
SGD 7,891 SGD
View
B+
Retailer 19
-
£4,582 GBP
$6,139 USD
View
Retailer 20
-
£5,758 GBP
A$11,869 AUD
View
Price last confirmed 23 days ago
Most Expensive
B
Brilliant Earth
11915287A · Oct 31
£7,516 GBP
$10,070 USD
View
20 more retailers have this diamond
Prices start from £1,258 GBPSave up to £6,257 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
3.03ct Cushion
£1,258 GBP