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Round|Lab Grown|IGI

5.23ct G VS2 Round Lab Grown Diamond

EX • G/VS2 • IGI LG817644966

Shape and cutting style on the report: Round brilliant

Certificate IGI LG817644966

Diamond specifications and retailer prices

From £590 GBP
$791 USD
As of October 29, 2026
Save £1,240 GBP (68%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,830 GBP at Brilliance · As of October 30, 2026
View at Brilliance

About this 5.23ct lab-grown round diamond

This 5.23ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG817644966 or 817644966. Listed at 3 retailers as of October 29, 2026, with prices from £590 to £1,830, a £1,240 spread on the same certified stone. Brilliance lists it at £1,830. 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

5.23
Carat
G
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817644966
Dimensions11.03 × 10.97 × 6.91 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
11.03 mm10.97 mm5.23 ctG / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817644966
Side View
Table 59.0%Crown 36.2°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £1,830 GBP|Low: £584 GBP|High: £2,007 GBP|Avg: £1,113 GBP|-8.8%
Brilliance
Retailer 2
Retailer 3
October 27, 2026
Retailer 2£590 GBP
Retailer 3£805 GBP
Brilliance£1,830 GBP

9 data points across 3 retailers

3 retailers£590 GBP to £1,830 GBP

A
Cheapest Retailer
-
£590 GBP
$791 USD
Final sale: no returns
B+
Retailer 2
-
£805 GBP
$1,079 USD
View
Most Expensive
B
Brilliance
D44588347 · Oct 30
£1,830 GBP
$2,452 USD
View
2 more retailers have this diamond
Prices start from £590 GBPSave up to £1,240 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
5.23ct Round
£590 GBP