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Cushion|Lab Grown|IGI

4.19ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846663138

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846663138

Diamond specifications and retailer prices

From £3,149 GBP
As of October 30, 2026
Save £11,482 GBP (78%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £14,631 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 4.19ct lab-grown cushion diamond

This 4.19ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846663138 or 846663138. Listed at 9 retailers as of October 30, 2026, with prices from £3,149 to £14,631, a £11,482 spread on the same certified stone. With Clarity lists it at £14,631. 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

4.19
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663138
Dimensions11.12 × 8.22 × 5.76 mm
L/W Ratio1.35
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
11.12 mm8.22 mm4.19 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663138
Side View
Table 60.0%Crown 33.7°Girdle: STK-THKPavilion 35.5°Culet: NoneDepth 70.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £6,828 GBP|Low: £2,952 GBP|High: £16,257 GBP|Avg: £7,022 GBP|-2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
October 31, 2026
Retailer 6£3,149 GBP
Retailer 2£3,803 GBP
Retailer 3£4,765 GBP
Retailer 8£5,607 GBP
Retailer 1£6,828 GBP
Retailer 4£6,893 GBP
Retailer 7£7,590 GBP
Retailer 5£10,993 GBP
With Clarity£14,631 GBP

7 data points across 9 retailers

9 retailers£3,149 GBP to £14,631 GBP

A
Cheapest Retailer
-
£3,149 GBP
A
Retailer 2
-
£3,803 GBP
$5,095 USD
View
A
Retailer 3
-
£4,765 GBP
$6,385 USD
View
A
Retailer 4
-
£5,607 GBP
$7,513 USD
View
B+
Retailer 5
-
£6,828 GBP
€8,713 EUR
View
B+
Retailer 6
-
£6,893 GBP
$9,236 USD
View
B+
Retailer 7
-
£7,590 GBP
View
B+
Retailer 8
-
£10,993 GBP
$14,730 USD
View
Most Expensive
B
With Clarity
846663138 · Oct 31
£14,631 GBP
$19,604 USD
View
8 more retailers have this diamond
Prices start from £3,149 GBPSave up to £11,482 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
4.19ct Cushion
£3,149 GBP