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Cushion|Lab Grown|IGI

5.31ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG816608288

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816608288

Diamond specifications and retailer prices

From £5,314 GBP
$7,120 USD
As of October 31, 2026
Save £26,719 GBP (83%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £32,032 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 top-tier cut grade and certified by IGI LG816608288 or 816608288. Listed at 8 retailers as of October 31, 2026, with prices from £5,314 to £32,032, a £26,719 spread on the same certified stone. Do Amore Diamonds lists it at £32,032. 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

5.31
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816608288
Dimensions11.09 × 9.29 × 6.32 mm
L/W Ratio1.19
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
11.09 mm9.29 mm5.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816608288
Side View
Table 59.0%Crown 36.5°Girdle: STK-VTKPavilion 35.9°Culet: NoneDepth 68.0%

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 31
Current: £32,032 GBP|Low: £5,314 GBP|High: £36,981 GBP|Avg: £15,882 GBP|-13.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8£5,314 GBP
Retailer 7£6,131 GBP
Retailer 2£7,478 GBP
Retailer 4£8,332 GBP
Retailer 5£10,446 GBP
Retailer 3£11,704 GBP
Retailer 6£12,471 GBP
Retailer 10£16,811 GBP
Do Amore Diamonds£32,032 GBP
Retailer 9£32,631 GBP

28 data points across 10 retailers

8 retailers£5,314 GBP to £32,032 GBP

A
Cheapest Retailer
-
£5,314 GBP
$7,120 USD
A
Retailer 2
-
£6,131 GBP
$8,215 USD
View
Retailer 3
-
£7,478 GBP
$10,020 USD
View
A
Retailer 4
-
£8,332 GBP
$11,164 USD
View
A
Retailer 5
-
£10,446 GBP
€13,330 EUR
View
A
Retailer 6
-
£11,704 GBP
View
B+
Retailer 7
-
£12,471 GBP
$16,710 USD
View
Most Expensive
B
Do Amore Diamonds
27-DEB1A4FD5 · Oct 31
£32,032 GBP
$42,920 USD
View
7 more retailers have this diamond
Prices start from £5,314 GBPSave up to £26,719 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
£5,314 GBP