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Cushion|Lab Grown|IGI

5.03ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG831644538

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831644538

Diamond specifications and retailer prices

From £6,477 GBP
HK$67,800 HKD
As of October 30, 2026
Save £17,673 GBP (73%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £24,150 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831644538 or 831644538. Listed at 11 retailers as of October 30, 2026, with prices from £6,477 to £24,150, a £17,673 spread on the same certified stone. With Clarity lists it at £24,150. 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

5.03
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831644538
Dimensions11.56 × 9.14 × 5.97 mm
L/W Ratio1.26
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
11.56 mm9.14 mm5.03 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831644538
Side View
Table 60.0%Crown 35.9°Girdle: THK-VTKPavilion 34.6°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 30
Current: £11,031 GBP|Low: £6,477 GBP|High: £24,150 GBP|Avg: £12,692 GBP|-15.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
With Clarity
October 30, 2026
Retailer 7£6,477 GBP
Retailer 5£7,369 GBP
Retailer 2£7,511 GBP
Retailer 8£9,329 GBP
Retailer 3£10,016 GBP
Retailer 1£11,031 GBP
Retailer 4£11,786 GBP
Retailer 9£16,353 GBP
Retailer 6£20,411 GBP
With Clarity£24,150 GBP

20 data points across 10 retailers

11 retailers£6,477 GBP to £24,150 GBP

A
Cheapest Retailer
-
£6,477 GBP
HK$67,800 HKD
A
Retailer 2
-
£7,369 GBP
$9,874 USD
View
A
Retailer 3
-
£7,511 GBP
View
A
Retailer 4
-
£9,329 GBP
$12,500 USD
View
A
Retailer 5
-
£10,016 GBP
€12,781 EUR
View
B+
Retailer 6
-
£11,031 GBP
$14,780 USD
View
B+
Retailer 7
-
£11,786 GBP
View
B+
Retailer 8
-
£16,214 GBP
$21,725 USD
View
B+
Retailer 9
-
£16,353 GBP
$21,911 USD
View
B
Retailer 10
-
£20,411 GBP
$27,349 USD
View
Most Expensive
B
With Clarity
831644538 · Oct 30
£24,150 GBP
$32,358 USD
View
10 more retailers have this diamond
Prices start from £6,477 GBPSave up to £17,673 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
£6,477 GBP