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Cushion|Lab Grown|IGI

3.06ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG768629844

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG768629844

Diamond specifications and retailer prices

From £1,616 GBP
$2,165 USD
As of October 30, 2026
Save £8,092 GBP (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £9,708 GBP at Blue Nile · As of October 29, 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 LG768629844 or 768629844. Listed at 13 retailers as of October 29, 2026, with prices from £1,616 to £9,708, a £8,092 spread on the same certified stone. Blue Nile lists it at £9,708. 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 angle33.7°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768629844
Dimensions9.77 × 7.76 × 5.12 mm
L/W Ratio1.26
Girdle conditionFaceted
Culet sizePointed
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
9.77 mm7.76 mm3.06 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768629844
Side View
Table 60.0%Crown 33.7°Girdle: MED-THKPavilion 34.8°Culet: NoneDepth 66.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £9,708 GBP|Low: £1,616 GBP|High: £17,912 GBP|Avg: £5,092 GBP|-45.8%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 2£1,616 GBP
Retailer 5£1,795 GBP
Retailer 11£2,035 GBP
Retailer 9£2,233 GBP
Retailer 4£2,543 GBP
Retailer 13£2,603 GBP
Retailer 12£3,772 GBP
Retailer 7£3,965 GBP
Retailer 6£4,220 GBP
Retailer 3£4,411 GBP
Retailer 14£4,843 GBP
Retailer 10£5,689 GBP
Retailer 8£6,098 GBP
Blue Nile£9,708 GBP

36 data points across 14 retailers

13 retailers£1,616 GBP to £9,708 GBP

A
Cheapest Retailer
-
£1,616 GBP
$2,165 USD
A
Retailer 2
-
£1,795 GBP
$2,405 USD
View
A
Retailer 3
-
£2,035 GBP
HK$21,300 HKD
View
A
Retailer 4
-
£2,233 GBP
View
A
Retailer 5
-
£2,543 GBP
$3,408 USD
View
A
Retailer 6
-
£2,603 GBP
€3,322 EUR
View
B+
Retailer 7
-
£3,772 GBP
ZAR 81,640 ZAR
View
B+
Retailer 8
-
£3,965 GBP
$5,312 USD
View
B+
Retailer 9
-
£4,411 GBP
$5,911 USD
View
B+
Retailer 10
-
£4,843 GBP
View
B+
Retailer 11
-
£5,689 GBP
$7,623 USD
View
B
Retailer 12
-
£6,098 GBP
$8,170 USD
View
Most Expensive
B
Blue Nile
29314091 · Oct 29
£9,708 GBP
$13,007 USD
View
12 more retailers have this diamond
Prices start from £1,616 GBPSave up to £8,092 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
£1,616 GBP