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Round|Lab Grown|IGI

3.06ct F IF Round Lab Grown Diamond

EX • F/IF • IGI LG837689156

Shape and cutting style on the report: Round brilliant

Certificate IGI LG837689156

Diamond specifications and retailer prices

From £547 GBP
As of November 3, 2026
Save £3,279 GBP (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,826 GBP at Rare Carat · As of November 4, 2026
View at Rare Carat

About this 3.06ct lab-grown round diamond

This 3.06ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG837689156 or 837689156. Listed at 15 retailers as of November 3, 2026, with prices from £547 to £3,826, a £3,279 spread on the same certified stone. Rare Carat lists it at £3,826. 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
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837689156
Dimensions9.35 × 9.40 × 5.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.35 mm9.40 mm3.06 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837689156
Side View
Table 61.0%Crown 32.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 59.7%

Caratlytics Score

How it works →
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 3
Current: £3,826 GBP|Low: £539 GBP|High: £4,085 GBP|Avg: £1,798 GBP|-6.3%
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
November 5, 2026
Retailer 9£547 GBP
Retailer 13£626 GBP
Retailer 7£753 GBP
Retailer 5£943 GBP
Retailer 11£1,049 GBP
Retailer 10£1,506 GBP
Retailer 14£1,586 GBP
Retailer 12£1,589 GBP
Retailer 3£1,876 GBP
Retailer 8£2,048 GBP
Retailer 2£2,486 GBP
Retailer 6£2,782 GBP
Retailer 4£3,273 GBP
Rare Carat£3,826 GBP

33 data points across 14 retailers

15 retailers£547 GBP to £3,826 GBP

A
Cheapest Retailer
-
£547 GBP
A
Retailer 2
-
£626 GBP
View
A
Retailer 3
-
£753 GBP
View
A
Retailer 4
-
£943 GBP
View
A
Retailer 5
-
£1,049 GBP
View
B+
Retailer 6
-
£1,506 GBP
View
B+
Retailer 7
-
£1,586 GBP
View
B+
Retailer 8
-
£1,589 GBP
View
B+
Retailer 9
-
£1,876 GBP
View
B+
Retailer 10
-
£2,048 GBP
View
B+
Retailer 11
-
£2,486 GBP
View
B
Retailer 12
-
£2,604 GBP
View
Retailer 13
-
£2,782 GBP
View
Price last confirmed 23 days ago
B
Retailer 14
-
£3,273 GBP
View
Most Expensive
B
Rare Carat
LGRD30-151878 · Nov 4
£3,826 GBP
$5,165 USD
View
14 more retailers have this diamond
Prices start from £547 GBPSave up to £3,279 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
£547 GBP