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Cushion|Lab Grown|IGI

4.19ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG744514729

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG744514729

Diamond specifications and retailer prices

From £2,937 GBP
$3,935 USD
As of October 30, 2026
Save £15,341 GBP (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £18,278 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 LG744514729 or 744514729. Listed at 12 retailers as of October 30, 2026, with prices from £2,937 to £18,278, a £15,341 spread on the same certified stone. Do Amore Diamonds lists it at £18,278. 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 angle36.8°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744514729
Dimensions9.41 × 9.14 × 6.34 mm
L/W Ratio1.03
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
9.41 mm9.14 mm4.19 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744514729
Side View
Table 60.0%Crown 36.8°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 69.4%

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: £18,278 GBP|Low: £2,937 GBP|High: £23,457 GBP|Avg: £8,064 GBP|-22.1%
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£2,937 GBP
Retailer 7£3,075 GBP
Retailer 6£3,416 GBP
Retailer 3£4,135 GBP
Retailer 10£4,970 GBP
Retailer 2£5,816 GBP
Retailer 11£6,101 GBP
Retailer 8£7,326 GBP
Retailer 9£8,450 GBP
Retailer 5£9,695 GBP
Do Amore Diamonds£18,278 GBP

30 data points across 11 retailers

12 retailers£2,937 GBP to £18,278 GBP

A
Cheapest Retailer
-
£2,937 GBP
$3,935 USD
A
Retailer 2
-
£3,075 GBP
$4,120 USD
View
A
Retailer 3
-
£3,416 GBP
$4,577 USD
View
A
Retailer 4
-
£4,135 GBP
$5,540 USD
View
Final sale: no returns
A
Retailer 5
-
£4,970 GBP
$6,659 USD
View
A
Retailer 6
-
£5,816 GBP
€7,422 EUR
View
Retailer 7
-
£6,101 GBP
$8,175 USD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
£7,326 GBP
View
B+
Retailer 9
-
£8,450 GBP
$11,323 USD
View
B+
Retailer 10
-
£9,695 GBP
$12,990 USD
View
B
Retailer 11
-
£14,873 GBP
$19,928 USD
View
Most Expensive
B
Do Amore Diamonds
27-A3834BAFB · Oct 31
£18,278 GBP
$24,490 USD
View
11 more retailers have this diamond
Prices start from £2,937 GBPSave up to £15,341 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
£2,937 GBP