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Cushion|Lab Grown|IGI

4.22ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG784642595

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG784642595

Diamond specifications and retailer prices

From £3,047 GBP
$4,083 USD
As of October 30, 2026
Save £15,969 GBP (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £19,016 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4.22ct lab-grown cushion diamond

This 4.22ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG784642595 or 784642595. Listed at 10 retailers as of October 30, 2026, with prices from £3,047 to £19,016, a £15,969 spread on the same certified stone. Do Amore Diamonds lists it at £19,016. 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

4.22
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784642595
Dimensions10.92 × 8.50 × 5.65 mm
L/W Ratio1.28
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
10.92 mm8.50 mm4.22 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784642595
Side View
Table 61.0%Crown 36.9°Girdle: STK-THKPavilion 34.8°Culet: NoneDepth 66.5%

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 30
Current: £19,016 GBP|Low: £3,047 GBP|High: £24,360 GBP|Avg: £8,172 GBP|-21.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2£3,047 GBP
Retailer 6£3,321 GBP
Retailer 4£3,483 GBP
Retailer 10£4,208 GBP
Retailer 8£5,003 GBP
Retailer 5£6,111 GBP
Retailer 9£6,236 GBP
Retailer 7£7,622 GBP
Retailer 3£9,755 GBP
Do Amore Diamonds£19,016 GBP

26 data points across 10 retailers

10 retailers£3,047 GBP to £19,016 GBP

A
Cheapest Retailer
-
£3,047 GBP
$4,083 USD
A
Retailer 2
-
£3,321 GBP
$4,450 USD
View
A
Retailer 3
-
£3,483 GBP
$4,667 USD
View
A
Retailer 4
-
£4,208 GBP
$5,638 USD
View
Final sale: no returns
A
Retailer 5
-
£5,003 GBP
$6,704 USD
View
A
Retailer 6
-
£6,111 GBP
€7,798 EUR
View
Retailer 7
-
£6,236 GBP
$8,355 USD
View
Price last confirmed 23 days ago
B+
Retailer 8
-
£7,622 GBP
View
B+
Retailer 9
-
£9,755 GBP
$13,070 USD
View
Most Expensive
B
Do Amore Diamonds
27-D9EA55FCE · Oct 30
£19,016 GBP
$25,480 USD
View
9 more retailers have this diamond
Prices start from £3,047 GBPSave up to £15,969 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
4.22ct Cushion
£3,047 GBP