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Round|Lab Grown|IGI

3.06ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG589309990

Shape and cutting style on the report: Round brilliant

Certificate IGI LG589309990

Diamond specifications and retailer prices

From £672 GBP
$895 USD
As of October 29, 2026
Save £7,836 GBP (92%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £8,508 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 LG589309990 or 589309990. Listed at 24 retailers as of October 29, 2026, with prices from £672 to £8,508, a £7,836 spread on the same certified stone. Brilliant Earth lists it at £8,508. 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 angle34.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG589309990
Dimensions9.29 × 9.33 × 5.68 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
9.29 mm9.33 mm3.06 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG589309990
Side View
Table 59.0%Crown 34.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.9%

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 29
Current: £8,508 GBP|Low: £576 GBP|High: £8,508 GBP|Avg: £1,838 GBP
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 16£600 GBP
Retailer 9£672 GBP
Retailer 5£696 GBP
Retailer 17£696 GBP
Retailer 2£940 GBP
Retailer 8£975 GBP
Retailer 4£1,124 GBP
Retailer 12£1,126 GBP
Retailer 10£1,178 GBP
Retailer 15£1,656 GBP
Retailer 14£1,734 GBP
Retailer 11£1,785 GBP
Retailer 3£2,178 GBP
Retailer 6£2,290 GBP
Retailer 13£2,885 GBP
Retailer 7£3,234 GBP
Brilliant Earth£8,508 GBP

45 data points across 17 retailers

24 retailers£672 GBP to £8,508 GBP

Retailer 1
-
£600 GBP
$799 USD
Price last confirmed 19 days ago
Retailer 2
-
£653 GBP
$870 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
£672 GBP
$895 USD
View
Final sale: no returns
Retailer 4
-
£696 GBP
$927 USD
View
Price last confirmed 13 days ago
Retailer 5
-
£696 GBP
$927 USD
View
Price last confirmed 12 days ago
A
Retailer 6
-
£940 GBP
View
A
Retailer 7
-
£975 GBP
$1,299 USD
View
A
Retailer 8
-
£1,124 GBP
$1,497 USD
View
A
Retailer 9
-
£1,126 GBP
$1,500 USD
View
A
Retailer 10
-
£1,178 GBP
View
A
Retailer 11
-
£1,247 GBP
$1,661 USD
View
A
Retailer 12
-
£1,656 GBP
$2,205 USD
View
Retailer 13
-
£1,734 GBP
A$3,553 AUD
View
Price last confirmed 8 days ago
A
Retailer 14
-
£1,785 GBP
ZAR 38,397 ZAR
View
A
Retailer 15
-
£2,138 GBP
$2,848 USD
View
Retailer 16
-
£2,161 GBP
$2,878 USD
View
Price last confirmed 22 days ago
B+
Retailer 17
-
£2,178 GBP
$2,901 USD
View
B+
Retailer 18
-
£2,290 GBP
$3,049 USD
View
B+
Retailer 19
-
£2,312 GBP
$3,079 USD
View
B+
Retailer 20
-
£2,742 GBP
$3,651 USD
View
B+
Retailer 21
-
£2,885 GBP
View
B+
Retailer 22
-
£3,234 GBP
$4,307 USD
View
B
Retailer 23
-
£5,332 GBP
$7,100 USD
View
Most Expensive
B
Brilliant Earth
18396914Y · Oct 29
£8,508 GBP
$11,330 USD
View
23 more retailers have this diamond
Prices start from £672 GBPSave up to £7,836 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
£672 GBP