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Cushion|Lab Grown|IGI

3.06ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG768629410

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG768629410

Diamond specifications and retailer prices

From £1,733 GBP
$2,322 USD
As of October 30, 2026
Save £5,275 GBP (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £7,008 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 LG768629410 or 768629410. Listed at 13 retailers as of October 30, 2026, with prices from £1,733 to £7,008, a £5,275 spread on the same certified stone. Brilliant Earth lists it at £7,008. 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 angle34.3°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768629410
Dimensions9.86 × 7.88 × 5.08 mm
L/W Ratio1.25
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
9.86 mm7.88 mm3.06 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768629410
Side View
Table 57.0%Crown 34.3°Girdle: MED-STKPavilion 35.1°Culet: NoneDepth 64.5%

Caratlytics Score

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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: £7,008 GBP|Low: £1,733 GBP|High: £10,834 GBP|Avg: £4,783 GBP|-27.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 6£1,733 GBP
Retailer 11£1,977 GBP
Retailer 9£2,233 GBP
Retailer 2£2,376 GBP
Retailer 5£2,543 GBP
Retailer 13£2,603 GBP
Retailer 12£3,772 GBP
Retailer 7£4,376 GBP
Retailer 4£4,411 GBP
Retailer 3£4,843 GBP
Retailer 10£5,689 GBP
Retailer 8£6,277 GBP
Brilliant Earth£7,008 GBP

37 data points across 13 retailers

13 retailers£1,733 GBP to £7,008 GBP

A
Cheapest Retailer
-
£1,733 GBP
$2,322 USD
A
Retailer 2
-
£1,977 GBP
HK$20,700 HKD
View
A
Retailer 3
-
£2,233 GBP
View
A
Retailer 4
-
£2,376 GBP
$3,183 USD
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
-
£4,376 GBP
$5,864 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
-
£6,277 GBP
$8,411 USD
View
Most Expensive
B
Brilliant Earth
18781972A · Oct 30
£7,008 GBP
$9,390 USD
View
12 more retailers have this diamond
Prices start from £1,733 GBPSave up to £5,275 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
£1,733 GBP