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Cushion|Lab Grown|IGI

4.30ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG784604225

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG784604225

Diamond specifications and retailer prices

From £3,692 GBP
$4,916 USD
As of October 28, 2026
Save £21,262 GBP (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £24,953 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 4.3ct lab-grown cushion diamond

This 4.3ct 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 LG784604225 or 784604225. Listed at 17 retailers as of October 28, 2026, with prices from £3,692 to £24,953, a £21,262 spread on the same certified stone. Do Amore Diamonds lists it at £24,953. 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

4.30
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784604225
Dimensions10.82 × 8.70 × 5.88 mm
L/W Ratio1.24
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
10.82 mm8.70 mm4.30 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784604225
Side View
Table 62.0%Crown 33.9°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 67.6%

Caratlytics Score

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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 28
Current: £24,953 GBP|Low: £3,692 GBP|High: £24,953 GBP|Avg: £9,419 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 29, 2026
Retailer 12£3,692 GBP
Retailer 4£4,063 GBP
Retailer 7£4,207 GBP
Retailer 11£4,228 GBP
Retailer 2£5,936 GBP
Retailer 13£6,063 GBP
Retailer 6£6,592 GBP
Retailer 8£7,308 GBP
Retailer 9£9,502 GBP
Retailer 10£9,846 GBP
Retailer 14£11,582 GBP
Retailer 15£14,748 GBP
Retailer 3£16,527 GBP
Retailer 5£22,318 GBP
Do Amore Diamonds£24,953 GBP

41 data points across 15 retailers

17 retailers£3,692 GBP to £24,953 GBP

A
Cheapest Retailer
-
£3,692 GBP
$4,916 USD
A
Retailer 2
-
£4,063 GBP
$5,410 USD
View
Final sale: no returns
A
Retailer 3
-
£4,207 GBP
$5,603 USD
View
Price last confirmed 13 days ago
A
Retailer 4
-
£4,228 GBP
$5,630 USD
View
A
Retailer 5
-
£5,936 GBP
View
A
Retailer 6
-
£6,063 GBP
$8,074 USD
View
B+
Retailer 7
-
£6,592 GBP
View
B+
Retailer 8
-
£7,308 GBP
€9,268 EUR
View
B+
Retailer 9
-
£9,502 GBP
View
B+
Retailer 10
-
£9,846 GBP
ZAR 211,829 ZAR
View
B+
Retailer 11
-
£11,582 GBP
$15,423 USD
View
B+
Retailer 12
-
£12,764 GBP
$16,998 USD
View
B
Retailer 13
-
£14,748 GBP
$19,639 USD
View
B
Retailer 14
-
£15,357 GBP
$20,451 USD
View
B
Retailer 15
-
£16,527 GBP
$22,008 USD
View
B
Retailer 16
-
£22,318 GBP
$29,721 USD
View
Most Expensive
B
Do Amore Diamonds
27-A9207B521 · Oct 29
£24,953 GBP
$33,230 USD
View
16 more retailers have this diamond
Prices start from £3,692 GBPSave up to £21,262 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
4.30ct Cushion
£3,692 GBP