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Cushion|Lab Grown|IGI

5.31ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG823695226

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG823695226

Diamond specifications and retailer prices

From £6,406 GBP
$8,583 USD
As of October 31, 2026
Save £16,870 GBP (72%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £23,276 GBP at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 5.31ct lab-grown cushion diamond

This 5.31ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG823695226 or 823695226. Listed at 17 retailers as of October 31, 2026, with prices from £6,406 to £23,276, a £16,870 spread on the same certified stone. Michael Trio lists it at £23,276. 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

5.31
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle30.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823695226
Dimensions10.86 × 8.62 × 5.96 mm
L/W Ratio1.26
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
10.86 mm8.62 mm5.31 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823695226
Side View
Table 61.0%Crown 36.6°Girdle: ThickPavilion 30.7°Culet: NoneDepth 69.1%

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 31
Current: £23,276 GBP|Low: £6,406 GBP|High: £23,276 GBP|Avg: £11,633 GBP
Michael Trio
Retailer 2
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Retailer 5
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Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 1, 2026
Retailer 7£6,406 GBP
Retailer 4£6,590 GBP
Retailer 16£6,636 GBP
Retailer 10£6,830 GBP
Retailer 17£6,840 GBP
Retailer 9£7,683 GBP
Retailer 11£8,179 GBP
Retailer 6£8,204 GBP
Retailer 8£9,509 GBP
Retailer 12£11,010 GBP
Retailer 15£11,423 GBP
Retailer 2£12,318 GBP
Retailer 14£13,482 GBP
Retailer 13£13,553 GBP
Retailer 3£18,475 GBP
Retailer 5£21,925 GBP
Michael Trio£23,276 GBP

26 data points across 17 retailers

17 retailers£6,406 GBP to £23,276 GBP

A
Cheapest Retailer
-
£6,406 GBP
$8,583 USD
Final sale: no returns
A
Retailer 2
-
£6,590 GBP
$8,830 USD
View
Retailer 3
-
£6,636 GBP
$8,891 USD
View
Price last confirmed 16 days ago
A
Retailer 4
-
£6,830 GBP
View
A
Retailer 5
-
£6,840 GBP
HK$71,600 HKD
View
A
Retailer 6
-
£7,683 GBP
$10,295 USD
View
A
Retailer 7
-
£8,179 GBP
View
A
Retailer 8
-
£8,204 GBP
$10,992 USD
View
A
Retailer 9
-
£9,509 GBP
View
B+
Retailer 10
-
£11,010 GBP
€14,050 EUR
View
B+
Retailer 11
-
£11,423 GBP
$15,306 USD
View
B+
Retailer 12
-
£12,318 GBP
View
B+
Retailer 13
-
£13,482 GBP
ZAR 291,824 ZAR
View
B+
Retailer 14
-
£13,553 GBP
$18,160 USD
View
B
Retailer 15
-
£18,475 GBP
$24,755 USD
View
B
Retailer 16
-
£21,925 GBP
$29,377 USD
View
Most Expensive
B
Michael Trio
1857987735 · Oct 31
£23,276 GBP
SGD 42,145 SGD
View
16 more retailers have this diamond
Prices start from £6,406 GBPSave up to £16,870 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
5.31ct Cushion
£6,406 GBP