Round|Lab Grown|IGI

5.26ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG800618938

Shape and cutting style on the report: Round brilliant

Certificate IGI LG800618938

Diamond specifications and retailer prices

From £5,056 GBP

$6,774 USD

As of October 29, 2026

Save £31,207 GBP (86%) vs most expensive(unlock to see where)

25 retailers carry this diamond

Most expensive: £36,263 GBP at Blue Nile · As of October 31, 2026

View at Blue Nile

About this 5.26ct lab-grown round diamond

This 5.26ct 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 LG800618938 or 800618938. Listed at 25 retailers as of October 29, 2026, with prices from £5,056 to £36,263, a £31,207 spread on the same certified stone. Blue Nile lists it at £36,263. 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

5.26

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.5°

Pavilion angle41°

OriginLab Grown

Grading LabIGI

CertificateIGI LG800618938

Dimensions11.28 × 11.24 × 6.85 mm

L/W Ratio1.00

Girdle conditionFaceted

Cert comments

HEARTS & ARROWS As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG800618938

Side View

Caratlytics Score

How it works →

A+

Exceptional

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: £36,263 GBP|Low: £5,056 GBP|High: £36,263 GBP|Avg: £11,991 GBP

Blue Nile

Retailer 2

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November 1, 2026

Retailer 7£5,056 GBP

Retailer 19£5,257 GBP

Retailer 17£5,258 GBP

Retailer 6£5,662 GBP

Retailer 12£5,865 GBP

Retailer 18£6,268 GBP

Retailer 16£6,445 GBP

Retailer 13£6,962 GBP

Retailer 5£7,079 GBP

Retailer 14£7,288 GBP

Retailer 2£7,340 GBP

Retailer 15£7,465 GBP

Retailer 3£7,989 GBP

Retailer 10£10,696 GBP

Retailer 9£10,718 GBP

Retailer 8£11,787 GBP

Retailer 4£11,915 GBP

Retailer 21£16,323 GBP

Retailer 20£17,755 GBP

Retailer 23£20,098 GBP

Retailer 11£20,494 GBP

Retailer 22£29,931 GBP

Blue Nile£36,263 GBP

39 data points across 23 retailers

25 retailers£5,056 GBP to £36,263 GBP

A+

Cheapest Retailer

£5,056 GBP

$6,774 USD

Retailer 2

£5,257 GBP

$7,044 USD

View

Retailer 3

£5,258 GBP

$7,045 USD

View

Retailer 4

£5,662 GBP

$7,587 USD

View

Final sale: no returns

Retailer 5

£5,865 GBP

$7,858 USD

View

Retailer 6

£6,268 GBP

$8,398 USD

View

Retailer 7

£6,445 GBP

$8,636 USD

View

Price last confirmed 15 days ago

Retailer 8

£6,962 GBP

$9,328 USD

View

Retailer 9

£7,079 GBP

HK$74,100 HKD

View

Retailer 10

£7,288 GBP

$9,765 USD

View

Retailer 11

£7,340 GBP

View

Retailer 12

£7,465 GBP

$10,002 USD

View

Retailer 13

£7,989 GBP

$10,704 USD

View

Retailer 14

£8,204 GBP

$10,992 USD

View

Price last confirmed 111 days ago

Retailer 15

£10,479 GBP

$14,041 USD

View

Retailer 16

£10,696 GBP

$14,331 USD

View

Retailer 17

£10,718 GBP

€13,677 EUR

View

Retailer 18

£11,787 GBP

View

Retailer 19

£11,915 GBP

ZAR 257,910 ZAR

View

B+

Retailer 20

£16,323 GBP

$21,870 USD

View

B+

Retailer 21

£17,755 GBP

$23,790 USD

View

B+

Retailer 22

£20,098 GBP

$26,929 USD

View

B+

Retailer 23

£20,494 GBP

SGD 37,107 SGD

View

Retailer 24

£29,931 GBP

$40,104 USD

View

Most Expensive

Blue Nile

29357283 · Oct 31

£36,263 GBP

$48,588 USD

View

24 more retailers have this diamond

Prices start from £5,056 GBPSave up to £31,207 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.

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