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Cushion|Lab Grown|IGI

5.25ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846664147

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846664147

Diamond specifications and retailer prices

From £5,094 GBP
$6,825 USD
As of October 30, 2026
Save £22,888 GBP (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £27,981 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.25ct lab-grown cushion diamond

This 5.25ct 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 LG846664147 or 846664147. Listed at 10 retailers as of October 30, 2026, with prices from £5,094 to £27,981, a £22,888 spread on the same certified stone. With Clarity lists it at £27,981. 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

5.25
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846664147
Dimensions11.22 × 9.46 × 6.18 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
11.22 mm9.46 mm5.25 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846664147
Side View
Table 62.0%Crown 33.3°Girdle: STK-THKPavilion 35.9°Culet: NoneDepth 65.3%

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: £8,089 GBP|Low: £5,094 GBP|High: £29,280 GBP|Avg: £12,156 GBP|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
With Clarity
October 31, 2026
Retailer 3£5,094 GBP
Retailer 2£5,728 GBP
Retailer 6£5,937 GBP
Retailer 9£6,932 GBP
Retailer 1£8,089 GBP
Retailer 7£11,830 GBP
Retailer 5£12,329 GBP
Retailer 4£12,538 GBP
Retailer 8£12,633 GBP
With Clarity£27,981 GBP

6 data points across 10 retailers

10 retailers£5,094 GBP to £27,981 GBP

A
Cheapest Retailer
-
£5,094 GBP
$6,825 USD
A
Retailer 2
-
£5,728 GBP
$7,675 USD
View
A
Retailer 3
-
£5,937 GBP
View
A
Retailer 4
-
£6,932 GBP
$9,288 USD
View
A
Retailer 5
-
£8,089 GBP
$10,839 USD
View
B+
Retailer 6
-
£11,830 GBP
View
B+
Retailer 7
-
£12,329 GBP
$16,520 USD
View
B+
Retailer 8
-
£12,538 GBP
$16,799 USD
View
B+
Retailer 9
-
£12,633 GBP
€16,121 EUR
View
Most Expensive
B
With Clarity
846664147 · Oct 31
£27,981 GBP
$37,492 USD
View
9 more retailers have this diamond
Prices start from £5,094 GBPSave up to £22,888 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
5.25ct Cushion
£5,094 GBP