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Oval|Lab Grown|IGI

10.23ct H VS1 Oval Lab Grown Diamond

EX • H/VS1 • IGI LG804633851

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG804633851

Diamond specifications and retailer prices

From £1,064 GBP
$1,426 USD
As of October 29, 2026
Save £4,451 GBP (81%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £5,515 GBP at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 10.23ct lab-grown oval diamond

This 10.23ct lab-grown oval sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG804633851 or 804633851. Listed at 3 retailers as of October 26, 2026, with prices from £1,064 to £5,515, a £4,451 spread on the same certified stone. Brilliant Earth lists it at £5,515. 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

10.23
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804633851
Dimensions18.16 × 12.47 × 7.41 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.16 mm12.47 mm10.23 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804633851
Side View
Table 60.0%Crown 34.3°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 59.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £5,515 GBP|Low: £1,064 GBP|High: £6,571 GBP|Avg: £3,949 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 26, 2026
Retailer 3£1,064 GBP
Retailer 2£1,597 GBP
Retailer 6£1,829 GBP
Retailer 7£4,052 GBP
Retailer 5£4,283 GBP
Brilliant Earth£5,515 GBP
Retailer 4£6,571 GBP

32 data points across 7 retailers

3 retailers£1,064 GBP to £5,515 GBP

A
Cheapest Retailer
-
£1,064 GBP
$1,426 USD
Final sale: no returns
A
Retailer 2
-
£1,597 GBP
View
Most Expensive
B
Brilliant Earth
20013607A · Oct 26
£5,515 GBP
$7,390 USD
View
2 more retailers have this diamond
Prices start from £1,064 GBPSave up to £4,451 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
10.23ct Oval
£1,064 GBP