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Oval|Lab Grown|IGI

10.40ct H VS1 Oval Lab Grown Diamond

ID • H/VS1 • IGI LG597369042

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG597369042

Diamond specifications and retailer prices

From £1,017 GBP
$1,362 USD
As of October 27, 2026
Save £4,596 GBP (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £5,612 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 10.4ct lab-grown oval diamond

This 10.4ct 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 LG597369042 or 597369042. Listed at 17 retailers as of October 27, 2026, with prices from £1,017 to £5,612, a £4,596 spread on the same certified stone. Brilliant Earth lists it at £5,612. 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

10.40
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG597369042
Dimensions17.86 × 12.42 × 7.44 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
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
17.86 mm12.42 mm10.40 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG597369042
Side View
Table 61.0%Crown 35.9°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 59.9%

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 27
Current: £5,612 GBP|Low: £976 GBP|High: £5,784 GBP|Avg: £2,276 GBP|-3.0%
Brilliant Earth
Retailer 2
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 29, 2026
Retailer 16£1,017 GBP
Retailer 10£1,059 GBP
Retailer 14£1,106 GBP
Retailer 15£1,179 GBP
Retailer 17£1,179 GBP
Retailer 11£1,306 GBP
Retailer 5£1,566 GBP
Retailer 2£1,826 GBP
Retailer 4£1,864 GBP
Retailer 12£1,973 GBP
Retailer 6£2,005 GBP
Retailer 13£2,184 GBP
Retailer 3£2,211 GBP
Retailer 7£2,844 GBP
Retailer 8£3,800 GBP
Retailer 9£4,145 GBP
Brilliant Earth£5,612 GBP

34 data points across 17 retailers

17 retailers£1,017 GBP to £5,612 GBP

A
Cheapest Retailer
-
£1,017 GBP
$1,362 USD
A
Retailer 2
-
£1,059 GBP
View
A
Retailer 3
-
£1,106 GBP
$1,482 USD
View
A
Retailer 4
-
£1,179 GBP
$1,580 USD
View
Retailer 5
-
£1,179 GBP
$1,580 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
£1,306 GBP
$1,750 USD
View
A
Retailer 7
-
£1,566 GBP
$2,098 USD
View
A
Retailer 8
-
£1,826 GBP
ZAR 39,518 ZAR
View
B+
Retailer 9
-
£1,864 GBP
$2,497 USD
View
A
Retailer 10
-
£1,973 GBP
€2,518 EUR
View
A
Retailer 11
-
£2,005 GBP
$2,687 USD
View
Retailer 12
-
£2,184 GBP
A$4,501 AUD
View
Price last confirmed 9 days ago
A
Retailer 13
-
£2,211 GBP
$2,962 USD
View
B+
Retailer 14
-
£2,844 GBP
View
B
Retailer 15
-
£3,800 GBP
$5,092 USD
View
B+
Retailer 16
-
£4,145 GBP
$5,554 USD
View
Most Expensive
B
Brilliant Earth
8058324A · Oct 29
£5,612 GBP
$7,520 USD
View
16 more retailers have this diamond
Prices start from £1,017 GBPSave up to £4,596 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
10.40ct Oval
£1,017 GBP