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Cushion|Lab Grown|IGI

5.10ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG840632376

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840632376

Diamond specifications and retailer prices

From £4,979 GBP
$6,631 USD
As of October 29, 2026
Save £20,694 GBP (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £25,673 GBP at Michael Trio · As of October 30, 2026
View at Michael Trio

About this 5.1ct lab-grown cushion diamond

This 5.1ct 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 LG840632376 or 840632376. Listed at 16 retailers as of October 29, 2026, with prices from £4,979 to £25,673, a £20,694 spread on the same certified stone. Michael Trio lists it at £25,673. 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

5.10
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840632376
Dimensions12.48 × 8.54 × 5.76 mm
L/W Ratio1.46
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
12.48 mm8.54 mm5.10 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840632376
Side View
Table 60.0%Crown 34.4°Girdle: STK-THKPavilion 34.6°Culet: NoneDepth 67.4%

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 29
Current: £25,673 GBP|Low: £4,979 GBP|High: £26,127 GBP|Avg: £11,696 GBP|-1.7%
Michael Trio
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 30, 2026
Retailer 4£4,979 GBP
Retailer 12£5,523 GBP
Retailer 2£5,717 GBP
Retailer 6£6,422 GBP
Retailer 8£6,950 GBP
Retailer 15£7,357 GBP
Retailer 13£7,429 GBP
Retailer 3£7,896 GBP
Retailer 5£10,404 GBP
Retailer 11£11,130 GBP
Retailer 9£11,251 GBP
Retailer 10£12,232 GBP
Retailer 14£19,154 GBP
Retailer 7£25,160 GBP
Michael Trio£25,673 GBP

18 data points across 15 retailers

16 retailers£4,979 GBP to £25,673 GBP

A
Cheapest Retailer
-
£4,979 GBP
$6,631 USD
A
Retailer 2
-
£5,523 GBP
$7,355 USD
View
A
Retailer 3
-
£5,717 GBP
View
A
Retailer 4
-
£6,422 GBP
$8,552 USD
View
A
Retailer 5
-
£6,950 GBP
View
A
Retailer 6
-
£7,357 GBP
$9,797 USD
View
Final sale: no returns
A
Retailer 7
-
£7,429 GBP
$9,893 USD
View
A
Retailer 8
-
£7,896 GBP
View
A
Retailer 9
-
£10,404 GBP
$13,855 USD
View
A
Retailer 10
-
£11,130 GBP
View
A
Retailer 11
-
£11,251 GBP
ZAR 242,047 ZAR
View
B+
Retailer 12
-
£12,232 GBP
€15,513 EUR
View
B+
Retailer 13
-
£19,154 GBP
$25,507 USD
View
B
Retailer 14
-
£21,146 GBP
$28,160 USD
View
B
Retailer 15
-
£25,160 GBP
$33,505 USD
View
Most Expensive
B
Michael Trio
8542642950 · Oct 30
£25,673 GBP
SGD 46,201 SGD
View
15 more retailers have this diamond
Prices start from £4,979 GBPSave up to £20,694 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
5.10ct Cushion
£4,979 GBP