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Round|Lab Grown|IGI

3.26ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG804659156

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804659156

Diamond specifications and retailer prices

From £1,687 GBP
$2,261 USD
As of October 30, 2026
Save £9,181 GBP (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £10,868 GBP at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 3.26ct lab-grown round diamond

This 3.26ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804659156 or 804659156. Listed at 11 retailers as of October 29, 2026, with prices from £1,687 to £10,868, a £9,181 spread on the same certified stone. Blue Nile lists it at £10,868. 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

3.26
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659156
Dimensions9.51 × 9.47 × 5.82 mm
L/W Ratio1.00
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
9.51 mm9.47 mm3.26 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659156
Side View
Table 57.0%Crown 34.4°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.3%

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: £10,868 GBP|Low: £1,687 GBP|High: £13,038 GBP|Avg: £4,796 GBP|-10.0%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 11£1,687 GBP
Retailer 8£1,776 GBP
Retailer 3£2,293 GBP
Retailer 5£2,519 GBP
Retailer 12£2,775 GBP
Retailer 7£2,939 GBP
Retailer 4£3,589 GBP
Retailer 9£4,817 GBP
Retailer 6£5,012 GBP
Retailer 10£6,425 GBP
Retailer 2£10,240 GBP
Blue Nile£10,868 GBP

41 data points across 12 retailers

11 retailers£1,687 GBP to £10,868 GBP

A
Cheapest Retailer
-
£1,687 GBP
$2,261 USD
A
Retailer 2
-
£1,776 GBP
$2,380 USD
View
B+
Retailer 3
-
£2,293 GBP
HK$24,000 HKD
View
B+
Retailer 4
-
£2,519 GBP
View
B+
Retailer 5
-
£2,775 GBP
$3,718 USD
View
B+
Retailer 6
-
£2,939 GBP
€3,750 EUR
View
B
Retailer 7
-
£4,817 GBP
$6,455 USD
View
B+
Retailer 8
-
£5,012 GBP
View
B
Retailer 9
-
£6,425 GBP
$8,609 USD
View
B
Retailer 10
-
£10,240 GBP
$13,720 USD
View
Most Expensive
B
Blue Nile
30001127 · Oct 29
£10,868 GBP
$14,562 USD
View
10 more retailers have this diamond
Prices start from £1,687 GBPSave up to £9,181 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
3.26ct Round
£1,687 GBP