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Round|Lab Grown|IGI

5.25ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG821641200

Shape and cutting style on the report: Round brilliant

Certificate IGI LG821641200

Diamond specifications and retailer prices

From £6,006 GBP
$8,048 USD
As of October 30, 2026
Save £21,364 GBP (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £27,370 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.25ct lab-grown round diamond

This 5.25ct lab-grown round 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 LG821641200 or 821641200. Listed at 11 retailers as of October 30, 2026, with prices from £6,006 to £27,370, a £21,364 spread on the same certified stone. With Clarity lists it at £27,370. 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 angle34.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821641200
Dimensions11.18 × 11.11 × 6.91 mm
L/W Ratio1.01
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
11.18 mm11.11 mm5.25 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821641200
Side View
Table 55.0%Crown 34.9°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

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: £8,292 GBP|Low: £5,911 GBP|High: £27,397 GBP|Avg: £14,020 GBP|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
November 1, 2026
Retailer 6£6,006 GBP
Retailer 9£7,058 GBP
Retailer 7£7,337 GBP
Retailer 10£8,230 GBP
Retailer 1£8,292 GBP
Retailer 3£11,273 GBP
Retailer 5£12,609 GBP
Retailer 4£16,695 GBP
Retailer 2£18,533 GBP
Retailer 8£22,171 GBP
With Clarity£27,397 GBP

41 data points across 11 retailers

11 retailers£6,006 GBP to £27,370 GBP

A
Cheapest Retailer
-
£6,006 GBP
$8,048 USD
A
Retailer 2
-
£7,058 GBP
$9,457 USD
View
A
Retailer 3
-
£7,337 GBP
HK$76,800 HKD
View
A
Retailer 4
-
£8,230 GBP
$11,027 USD
View
A
Retailer 5
-
£8,292 GBP
View
A
Retailer 6
-
£11,273 GBP
€14,385 EUR
View
B+
Retailer 7
-
£12,609 GBP
View
B+
Retailer 8
-
£16,695 GBP
$22,370 USD
View
B+
Retailer 9
-
£18,533 GBP
$24,833 USD
View
B
Retailer 10
-
£22,171 GBP
$29,707 USD
View
Most Expensive
B
With Clarity
821641200 · Oct 31
£27,370 GBP
$36,673 USD
View
10 more retailers have this diamond
Prices start from £6,006 GBPSave up to £21,364 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 Round
£6,006 GBP