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Cushion|Lab Grown|IGI

3.06ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG804659441

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG804659441

Diamond specifications and retailer prices

From £1,702 GBP
$2,280 USD
As of October 30, 2026
Save £6,027 GBP (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £7,728 GBP at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 3.06ct lab-grown cushion diamond

This 3.06ct lab-grown cushion 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 LG804659441 or 804659441. Listed at 12 retailers as of October 30, 2026, with prices from £1,702 to £7,728, a £6,027 spread on the same certified stone. Blue Nile lists it at £7,728. 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

3.06
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659441
Dimensions9.47 × 7.83 × 5.19 mm
L/W Ratio1.21
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
9.47 mm7.83 mm3.06 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659441
Side View
Table 61.0%Crown 37.6°Girdle: MED-STKPavilion 36.7°Culet: NoneDepth 66.3%

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: £7,728 GBP|Low: £1,702 GBP|High: £17,912 GBP|Avg: £5,365 GBP|-56.9%
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 31, 2026
Retailer 6£1,702 GBP
Retailer 5£1,801 GBP
Retailer 9£2,159 GBP
Retailer 2£2,375 GBP
Retailer 3£2,720 GBP
Retailer 10£2,769 GBP
Retailer 4£4,179 GBP
Retailer 12£4,723 GBP
Retailer 11£4,921 GBP
Retailer 8£6,042 GBP
Retailer 7£6,560 GBP
Blue Nile£7,728 GBP

44 data points across 12 retailers

12 retailers£1,702 GBP to £7,728 GBP

A
Cheapest Retailer
-
£1,702 GBP
$2,280 USD
A
Retailer 2
-
£1,801 GBP
$2,413 USD
View
A
Retailer 3
-
£2,159 GBP
HK$22,600 HKD
View
A
Retailer 4
-
£2,375 GBP
View
A
Retailer 5
-
£2,720 GBP
$3,645 USD
View
A
Retailer 6
-
£2,769 GBP
€3,534 EUR
View
Retailer 7
-
£4,179 GBP
$5,600 USD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
£4,723 GBP
$6,328 USD
View
B+
Retailer 9
-
£4,921 GBP
View
B+
Retailer 10
-
£6,042 GBP
$8,095 USD
View
B+
Retailer 11
-
£6,560 GBP
$8,790 USD
View
Most Expensive
B
Blue Nile
29977394 · Oct 31
£7,728 GBP
$10,355 USD
View
11 more retailers have this diamond
Prices start from £1,702 GBPSave up to £6,027 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
3.06ct Cushion
£1,702 GBP