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Cushion|Lab Grown|IGI

5.03ct E FL Cushion Lab Grown Diamond

VG • E/FL • IGI LG821639484

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821639484

Diamond specifications and retailer prices

From £6,294 GBP
$8,433 USD
As of October 26, 2026
Save £18,100 GBP (74%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £24,394 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 5.03ct lab-grown cushion diamond

This 5.03ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG821639484 or 821639484. Listed at 12 retailers as of October 26, 2026, with prices from £6,294 to £24,394, a £18,100 spread on the same certified stone. With Clarity lists it at £24,394. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

5.03
Carat
E
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821639484
Dimensions11.62 × 9.18 × 5.99 mm
L/W Ratio1.27
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
11.62 mm9.18 mm5.03 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821639484
Side View
Table 59.0%Crown 34.2°Girdle: MED-STKPavilion 34.4°Culet: NoneDepth 65.3%

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 26
Current: £7,579 GBP|Low: £6,294 GBP|High: £28,687 GBP|Avg: £12,499 GBP|-12.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
October 30, 2026
Retailer 10£6,294 GBP
Retailer 11£6,544 GBP
Retailer 9£7,094 GBP
Retailer 7£7,508 GBP
Retailer 1£7,579 GBP
Retailer 5£10,117 GBP
Retailer 2£10,993 GBP
Retailer 6£11,891 GBP
Retailer 4£12,238 GBP
Retailer 8£16,518 GBP
Retailer 3£20,565 GBP
With Clarity£24,394 GBP

40 data points across 12 retailers

12 retailers£6,294 GBP to £24,394 GBP

A
Cheapest Retailer
-
£6,294 GBP
$8,433 USD
A
Retailer 2
-
£6,544 GBP
HK$68,500 HKD
View
A
Retailer 3
-
£7,094 GBP
$9,505 USD
View
Retailer 4
-
£7,508 GBP
$10,060 USD
View
Price last confirmed 12 days ago
A
Retailer 5
-
£7,579 GBP
View
A
Retailer 6
-
£10,117 GBP
€12,910 EUR
View
B+
Retailer 7
-
£10,993 GBP
$14,730 USD
View
B+
Retailer 8
-
£11,891 GBP
View
B+
Retailer 9
-
£12,238 GBP
ZAR 264,907 ZAR
View
B+
Retailer 10
-
£16,518 GBP
$22,132 USD
View
B
Retailer 11
-
£20,565 GBP
$27,555 USD
View
Most Expensive
B
With Clarity
821639484 · Oct 30
£24,394 GBP
$32,685 USD
View
11 more retailers have this diamond
Prices start from £6,294 GBPSave up to £18,100 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
5.03ct Cushion
£6,294 GBP