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Round|Lab Grown|IGI

3.06ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG670467839

Shape and cutting style on the report: Round brilliant

Certificate IGI LG670467839

Diamond specifications and retailer prices

From £486 GBP
$647 USD
As of October 29, 2026
Save £8,060 GBP (94%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £8,546 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.06ct lab-grown round diamond

This 3.06ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG670467839 or 670467839. Listed at 24 retailers as of October 29, 2026, with prices from £486 to £8,546, a £8,060 spread on the same certified stone. Brilliant Earth lists it at £8,546. 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
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670467839
Dimensions9.28 × 9.33 × 5.76 mm
L/W Ratio1.01
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
9.28 mm9.33 mm3.06 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670467839
Side View
Table 58.0%Crown 35.3°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.8%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: £8,546 GBP|Low: £466 GBP|High: £8,553 GBP|Avg: £1,533 GBP|-0.1%
Brilliant Earth
Retailer 2
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October 30, 2026
Retailer 5£486 GBP
Retailer 16£529 GBP
Retailer 23£544 GBP
Retailer 4£563 GBP
Retailer 6£563 GBP
Retailer 3£654 GBP
Retailer 2£689 GBP
Retailer 20£698 GBP
Retailer 8£793 GBP
Retailer 10£807 GBP
Retailer 13£897 GBP
Retailer 19£988 GBP
Retailer 21£1,280 GBP
Retailer 18£1,308 GBP
Retailer 22£1,440 GBP
Retailer 7£1,567 GBP
Retailer 9£1,584 GBP
Retailer 12£1,922 GBP
Retailer 15£1,944 GBP
Retailer 11£1,967 GBP
Retailer 14£2,001 GBP
Retailer 17£2,386 GBP
Brilliant Earth£8,546 GBP

29 data points across 23 retailers

24 retailers£486 GBP to £8,546 GBP

A+
Cheapest Retailer
-
£486 GBP
$647 USD
A
Retailer 2
-
£529 GBP
$704 USD
View
A
Retailer 3
-
£544 GBP
$724 USD
View
Final sale: no returns
A
Retailer 4
-
£563 GBP
$750 USD
View
Retailer 5
-
£563 GBP
$750 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
£654 GBP
HK$6,800 HKD
View
A
Retailer 7
-
£689 GBP
View
A
Retailer 8
-
£698 GBP
$930 USD
View
A
Retailer 9
-
£793 GBP
$1,056 USD
View
A
Retailer 10
-
£807 GBP
$1,075 USD
View
A
Retailer 11
-
£897 GBP
View
A
Retailer 12
-
£988 GBP
€1,253 EUR
View
Retailer 13
-
£1,280 GBP
A$2,622 AUD
View
Price last confirmed 9 days ago
A
Retailer 14
-
£1,308 GBP
ZAR 28,147 ZAR
View
A
Retailer 15
-
£1,440 GBP
$1,917 USD
View
A
Retailer 16
-
£1,567 GBP
$2,087 USD
View
A
Retailer 17
-
£1,584 GBP
$2,110 USD
View
A
Retailer 18
-
£1,922 GBP
$2,560 USD
View
A
Retailer 19
-
£1,944 GBP
$2,589 USD
View
A
Retailer 20
-
£1,967 GBP
$2,620 USD
View
A
Retailer 21
-
£2,001 GBP
$2,665 USD
View
B+
Retailer 22
-
£2,386 GBP
View
Retailer 23
-
£4,559 GBP
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
15028086A · Oct 29
£8,546 GBP
$11,380 USD
View
23 more retailers have this diamond
Prices start from £486 GBPSave up to £8,060 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 Round
£486 GBP