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Cushion|Lab Grown|IGI

5.20ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG628448093

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG628448093

Diamond specifications and retailer prices

From £4,773 GBP
$6,395 USD
As of October 30, 2026
Save £26,610 GBP (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £31,383 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 5.2ct lab-grown cushion diamond

This 5.2ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG628448093 or 628448093. Listed at 11 retailers as of October 30, 2026, with prices from £4,773 to £31,383, a £26,610 spread on the same certified stone. Do Amore Diamonds lists it at £31,383. 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

5.20
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628448093
Dimensions11.01 × 9.15 × 6.58 mm
L/W Ratio1.20
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
11.01 mm9.15 mm5.20 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628448093
Side View
Table 66.0%Crown 37.7°Girdle: THK-VTKPavilion 39.6°Culet: NoneDepth 71.9%

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 30
Current: £31,383 GBP|Low: £4,773 GBP|High: £36,234 GBP|Avg: £12,092 GBP|-13.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 4£4,773 GBP
Retailer 7£5,206 GBP
Retailer 6£5,903 GBP
Retailer 3£6,860 GBP
Retailer 11£7,754 GBP
Retailer 10£8,219 GBP
Retailer 2£10,230 GBP
Retailer 8£11,740 GBP
Retailer 5£12,217 GBP
Retailer 9£14,685 GBP
Do Amore Diamonds£31,383 GBP

31 data points across 11 retailers

11 retailers£4,773 GBP to £31,383 GBP

A
Cheapest Retailer
-
£4,773 GBP
$6,395 USD
A
Retailer 2
-
£5,206 GBP
$6,975 USD
View
A
Retailer 3
-
£5,903 GBP
$7,910 USD
View
A
Retailer 4
-
£6,860 GBP
$9,191 USD
View
Final sale: no returns
Retailer 5
-
£7,754 GBP
$10,390 USD
View
Price last confirmed 12 days ago
A
Retailer 6
-
£8,219 GBP
$11,013 USD
View
A
Retailer 7
-
£10,230 GBP
€13,054 EUR
View
A
Retailer 8
-
£11,740 GBP
View
B+
Retailer 9
-
£12,217 GBP
$16,370 USD
View
B+
Retailer 10
-
£14,685 GBP
$19,676 USD
View
Most Expensive
B
Do Amore Diamonds
27-341810B12 · Oct 31
£31,383 GBP
$42,050 USD
View
10 more retailers have this diamond
Prices start from £4,773 GBPSave up to £26,610 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
5.20ct Cushion
£4,773 GBP