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Round|Lab Grown|IGI

3.43ct H SI2 Round Lab Grown Diamond

ID • H/SI2 • IGI LG607333504

Shape and cutting style on the report: Round brilliant

Certificate IGI LG607333504

Diamond specifications and retailer prices

From £224 GBP
As of November 5, 2026
Save £1,254 GBP (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,479 GBP at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 3.43ct lab-grown round diamond

This 3.43ct lab-grown round sits in the three to five carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG607333504 or 607333504. Listed at 8 retailers as of November 5, 2026, with prices from £224 to £1,479, a £1,254 spread on the same certified stone. Brilliant Earth lists it at £1,479. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.43
Carat
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG607333504
Dimensions9.71 × 9.77 × 5.89 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.71 mm9.77 mm3.43 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG607333504
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 60.5%

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 5
Current: £1,479 GBP|Low: £214 GBP|High: £1,531 GBP|Avg: £818 GBP|-3.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 6£224 GBP
Retailer 3£260 GBP
Retailer 5£455 GBP
Retailer 4£760 GBP
Retailer 8£815 GBP
Retailer 9£822 GBP
Retailer 2£987 GBP
Retailer 7£1,180 GBP
Brilliant Earth£1,479 GBP

23 data points across 9 retailers

8 retailers£224 GBP to £1,479 GBP

A
Cheapest Retailer
-
£224 GBP
A
Retailer 2
-
£260 GBP
View
B+
Retailer 3
-
£455 GBP
View
A
Retailer 4
-
£760 GBP
View
A
Retailer 5
-
£815 GBP
View
A
Retailer 6
-
£987 GBP
View
Retailer 7
-
£1,180 GBP
View
Price last confirmed 8 days ago
Most Expensive
B+
Brilliant Earth
8575460Y · Nov 5
£1,479 GBP
$1,990 USD
View
7 more retailers have this diamond
Prices start from £224 GBPSave up to £1,254 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
3.43ct Round
£224 GBP