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Cushion|Lab Grown|IGI

3.07ct D FL Cushion Lab Grown Diamond

GD • D/FL • IGI LG780662858

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780662858

Diamond specifications and retailer prices

From £1,738 GBP
$2,329 USD
As of October 30, 2026
Save £5,404 GBP (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £7,142 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.07ct lab-grown cushion diamond

This 3.07ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG780662858 or 780662858. Listed at 13 retailers as of October 30, 2026, with prices from £1,738 to £7,142, a £5,404 spread on the same certified stone. Brilliant Earth lists it at £7,142. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.07
Carat
D
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662858
Dimensions9.90 × 7.69 × 5.08 mm
L/W Ratio1.29
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
9.90 mm7.69 mm3.07 ctD / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662858
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 37°Culet: NoneDepth 66.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £7,142 GBP|Low: £1,738 GBP|High: £10,869 GBP|Avg: £4,813 GBP|-26.4%
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 7£1,738 GBP
Retailer 11£1,987 GBP
Retailer 2£2,241 GBP
Retailer 6£2,390 GBP
Retailer 5£2,552 GBP
Retailer 13£2,612 GBP
Retailer 12£3,784 GBP
Retailer 8£4,391 GBP
Retailer 4£4,426 GBP
Retailer 3£4,859 GBP
Retailer 10£5,708 GBP
Retailer 9£6,298 GBP
Brilliant Earth£7,142 GBP

37 data points across 13 retailers

13 retailers£1,738 GBP to £7,142 GBP

A
Cheapest Retailer
-
£1,738 GBP
$2,329 USD
A
Retailer 2
-
£1,987 GBP
HK$20,800 HKD
View
A
Retailer 3
-
£2,241 GBP
View
A
Retailer 4
-
£2,390 GBP
$3,202 USD
View
A
Retailer 5
-
£2,552 GBP
$3,420 USD
View
A
Retailer 6
-
£2,612 GBP
€3,333 EUR
View
B+
Retailer 7
-
£3,784 GBP
ZAR 81,903 ZAR
View
B+
Retailer 8
-
£4,391 GBP
$5,883 USD
View
B+
Retailer 9
-
£4,426 GBP
$5,930 USD
View
B
Retailer 10
-
£4,859 GBP
View
B
Retailer 11
-
£5,708 GBP
$7,647 USD
View
B
Retailer 12
-
£6,298 GBP
$8,438 USD
View
Most Expensive
B
Brilliant Earth
18951770A · Oct 30
£7,142 GBP
$9,570 USD
View
12 more retailers have this diamond
Prices start from £1,738 GBPSave up to £5,404 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
3.07ct Cushion
£1,738 GBP