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Cushion|Lab Grown|IGI

3.06ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG768630677

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG768630677

Diamond specifications and retailer prices

From £1,616 GBP
$2,165 USD
As of October 30, 2026
Save £5,649 GBP (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £7,265 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 LG768630677 or 768630677. Listed at 14 retailers as of October 30, 2026, with prices from £1,616 to £7,265, a £5,649 spread on the same certified stone. Blue Nile lists it at £7,265. 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 angle33.8°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630677
Dimensions9.80 × 7.68 × 5.12 mm
L/W Ratio1.28
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
9.80 mm7.68 mm3.06 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630677
Side View
Table 59.0%Crown 33.8°Girdle: MED-THKPavilion 34.9°Culet: NoneDepth 66.7%

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: £7,265 GBP|Low: £1,616 GBP|High: £17,912 GBP|Avg: £5,051 GBP|-59.4%
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 31, 2026
Retailer 8£1,616 GBP
Retailer 7£1,784 GBP
Retailer 12£2,035 GBP
Retailer 2£2,233 GBP
Retailer 4£2,543 GBP
Retailer 14£2,603 GBP
Retailer 13£3,772 GBP
Retailer 9£3,965 GBP
Retailer 6£4,179 GBP
Retailer 3£4,411 GBP
Retailer 5£4,824 GBP
Retailer 11£5,689 GBP
Retailer 10£6,098 GBP
Blue Nile£7,265 GBP

36 data points across 14 retailers

14 retailers£1,616 GBP to £7,265 GBP

A
Cheapest Retailer
-
£1,616 GBP
$2,165 USD
A
Retailer 2
-
£1,784 GBP
$2,390 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
Retailer 9
-
£4,179 GBP
$5,600 USD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£4,411 GBP
$5,911 USD
View
B+
Retailer 11
-
£4,824 GBP
View
B+
Retailer 12
-
£5,689 GBP
$7,623 USD
View
B
Retailer 13
-
£6,098 GBP
$8,170 USD
View
Most Expensive
B
Blue Nile
29314024 · Oct 31
£7,265 GBP
$9,734 USD
View
13 more retailers have this diamond
Prices start from £1,616 GBPSave up to £5,649 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