Radiant|Lab Grown|IGI

15.43ct G VVS2 Radiant Lab Grown Diamond

ID • G/VVS2 • IGI LG830608326

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG830608326

Diamond specifications and retailer prices

From £3,181 GBP
HK$33,300 HKD
As of October 31, 2026
Save £8,846 GBP (74%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £20,957 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 15.43ct lab-grown radiant diamond

This 15.43ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG830608326 or 830608326. Listed at 8 retailers as of October 31, 2026, with a 278% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

15.43
Carat
G
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.4°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830608326
Dimensions17.92 × 12.15 × 7.97 mm
L/W Ratio1.47
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.92 mm12.15 mm15.43 ctG / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830608326
Side View
Table 66.0%Crown 45.4°Girdle: Slightly ThickPavilion 34.1°Culet: NoneDepth 65.6%

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: Oct 31
Current: £20,957 GBP|Low: £3,181 GBP|High: £21,606 GBP|Avg: £7,548 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 22, 2026
Retailer 8£3,181 GBP
Retailer 5£3,856 GBP
Retailer 3£3,859 GBP
Retailer 6£4,253 GBP
Retailer 4£4,866 GBP
Retailer 2£5,096 GBP
Retailer 7£12,027 GBP
Brilliant Earth£20,957 GBP

9 data points across 8 retailers

8 retailers£3,181 GBP to £12,027 GBP

A
Cheapest Retailer
-
£3,181 GBP
HK$33,300 HKD
A
Retailer 2
-
£3,856 GBP
$5,166 USD
View
A
Retailer 3
-
£3,859 GBP
$5,170 USD
View
B+
Retailer 4
-
£4,253 GBP
$5,699 USD
View
Retailer 5
-
£4,866 GBP
$6,520 USD
View
Price last confirmed 10 days ago
Retailer 6
-
£5,096 GBP
A$10,505 AUD
View
Price last confirmed 9 days ago
B
Retailer 7
-
£12,027 GBP
$16,115 USD
View
Most Expensive
Brilliant Earth
21149856A · Oct 31
£20,957 GBP
$28,080 USD
View
Price under review
7 more retailers have this diamond
Prices start from £3,181 GBPSave up to £8,846 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
15.43ct Radiant
£3,181 GBP