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Radiant|Lab Grown|IGI

3.06ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG731566869

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG731566869

Diamond specifications and retailer prices

From £919 GBP
$1,231 USD
As of October 30, 2026
Save £5,059 GBP (85%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £5,978 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.06ct lab-grown radiant diamond

This 3.06ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG731566869 or 731566869. Listed at 25 retailers as of October 30, 2026, with prices from £919 to £5,978, a £5,059 spread on the same certified stone. Brilliant Earth lists it at £5,978. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.7°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731566869
Dimensions10.11 × 7.32 × 4.83 mm
L/W Ratio1.38
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
10.11 mm7.32 mm3.06 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731566869
Side View
Table 64.0%Crown 40.7°Girdle: MED-STKPavilion 34.3°Culet: NoneDepth 66.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £5,978 GBP|Low: £919 GBP|High: £8,799 GBP|Avg: £2,358 GBP|-32.1%
Brilliant Earth
Retailer 2
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Retailer 23
November 1, 2026
Retailer 6£919 GBP
Retailer 2£999 GBP
Retailer 5£1,028 GBP
Retailer 14£1,066 GBP
Retailer 16£1,224 GBP
Retailer 3£1,249 GBP
Retailer 8£1,290 GBP
Retailer 18£1,534 GBP
Retailer 17£1,601 GBP
Retailer 21£1,704 GBP
Retailer 19£1,997 GBP
Retailer 23£2,041 GBP
Retailer 22£2,216 GBP
Retailer 20£2,406 GBP
Retailer 15£2,474 GBP
Retailer 12£2,571 GBP
Retailer 4£3,057 GBP
Retailer 7£3,345 GBP
Retailer 13£3,424 GBP
Retailer 11£3,736 GBP
Retailer 10£3,746 GBP
Retailer 9£4,066 GBP
Brilliant Earth£5,978 GBP

29 data points across 23 retailers

25 retailers£919 GBP to £5,978 GBP

A
Cheapest Retailer
-
£919 GBP
$1,231 USD
A
Retailer 2
-
£999 GBP
$1,339 USD
View
A
Retailer 3
-
£1,028 GBP
$1,378 USD
View
Final sale: no returns
A
Retailer 4
-
£1,066 GBP
$1,428 USD
View
A
Retailer 5
-
£1,224 GBP
$1,640 USD
View
A
Retailer 6
-
£1,249 GBP
$1,674 USD
View
A
Retailer 7
-
£1,290 GBP
HK$13,500 HKD
View
A
Retailer 8
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£1,534 GBP
View
A
Retailer 9
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£1,601 GBP
$2,145 USD
View
A
Retailer 10
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£1,704 GBP
€2,174 EUR
View
A
Retailer 11
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£1,997 GBP
$2,676 USD
View
A
Retailer 12
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£2,041 GBP
$2,735 USD
View
A
Retailer 13
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£2,216 GBP
$2,969 USD
View
A
Retailer 14
-
£2,406 GBP
A$4,959 AUD
View
A
Retailer 15
-
£2,474 GBP
ZAR 53,551 ZAR
View
B+
Retailer 16
-
£2,571 GBP
View
B+
Retailer 17
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£3,015 GBP
$4,039 USD
View
B+
Retailer 18
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£3,057 GBP
$4,096 USD
View
B+
Retailer 19
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£3,345 GBP
$4,482 USD
View
B+
Retailer 20
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£3,424 GBP
View
B+
Retailer 21
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£3,736 GBP
$5,006 USD
View
B+
Retailer 22
-
£3,746 GBP
SGD 6,783 SGD
View
B+
Retailer 23
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£4,066 GBP
$5,448 USD
View
Retailer 24
-
£5,080 GBP
A$10,472 AUD
View
Price last confirmed 31 days ago
Most Expensive
B
Brilliant Earth
15998599A · Oct 31
£5,978 GBP
$8,010 USD
View
24 more retailers have this diamond
Prices start from £919 GBPSave up to £5,059 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 Radiant
£919 GBP