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Round|Lab Grown|IGI

3.09ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG761511058

Shape and cutting style on the report: Round brilliant

Certificate IGI LG761511058

Diamond specifications and retailer prices

From £475 GBP
$637 USD
As of November 1, 2026
Save £2,469 GBP (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,944 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 3.09ct lab-grown round diamond

This 3.09ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG761511058 or 761511058. Listed at 18 retailers as of November 1, 2026, with prices from £475 to £2,944, a £2,469 spread on the same certified stone. Rare Carat lists it at £2,944. 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

3.09
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761511058
Dimensions9.38 × 9.34 × 5.76 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.38 mm9.34 mm3.09 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761511058
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.5%

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: Nov 1
Current: £2,944 GBP|Low: £457 GBP|High: £2,974 GBP|Avg: £1,203 GBP|-1.0%
Rare Carat
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
November 2, 2026
Retailer 3£475 GBP
Retailer 6£517 GBP
Retailer 4£552 GBP
Retailer 12£683 GBP
Retailer 8£689 GBP
Retailer 14£799 GBP
Retailer 5£837 GBP
Retailer 2£878 GBP
Retailer 9£1,246 GBP
Retailer 11£1,281 GBP
Retailer 13£1,409 GBP
Retailer 7£1,552 GBP
Retailer 15£1,882 GBP
Retailer 10£2,336 GBP
Rare Carat£2,944 GBP

44 data points across 15 retailers

18 retailers£475 GBP to £2,944 GBP

A
Cheapest Retailer
-
£475 GBP
$637 USD
A
Retailer 2
-
£517 GBP
$693 USD
View
Retailer 3
-
£552 GBP
$739 USD
View
Price last confirmed 16 days ago
A
Retailer 4
-
£552 GBP
$739 USD
View
A
Retailer 5
-
£683 GBP
$915 USD
View
A
Retailer 6
-
£689 GBP
View
A
Retailer 7
-
£799 GBP
$1,070 USD
View
A
Retailer 8
-
£837 GBP
$1,122 USD
View
A
Retailer 9
-
£878 GBP
View
A
Retailer 10
-
£1,246 GBP
A$2,569 AUD
View
A
Retailer 11
-
£1,281 GBP
ZAR 27,732 ZAR
View
B+
Retailer 12
-
£1,409 GBP
$1,888 USD
View
B+
Retailer 13
-
£1,552 GBP
$2,079 USD
View
B+
Retailer 14
-
£1,768 GBP
$2,369 USD
View
B+
Retailer 15
-
£1,882 GBP
$2,522 USD
View
B+
Retailer 16
-
£1,904 GBP
$2,551 USD
View
B+
Retailer 17
-
£2,336 GBP
View
Most Expensive
B
Rare Carat
112342 · Nov 1
£2,944 GBP
$3,945 USD
View
17 more retailers have this diamond
Prices start from £475 GBPSave up to £2,469 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
3.09ct Round
£475 GBP