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Round|Lab Grown|IGI

1.40ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG600316324

Shape and cutting style on the report: Round brilliant

Certificate IGI LG600316324

Diamond specifications and retailer prices

From £146 GBP
$196 USD
As of October 25, 2026
Save £1,108 GBP (88%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £9,999 GBP at Allurez · As of October 26, 2026
View at Allurez

About this 1.4ct lab-grown round diamond

This 1.4ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG600316324 or 600316324. Listed at 17 retailers as of October 25, 2026, with a 757% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600316324
Dimensions7.13 × 7.11 × 4.37 mm
L/W Ratio1.00
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
7.13 mm7.11 mm1.40 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600316324
Side View
Table 60.0%Crown 35.5°Girdle: ThickPavilion 40.5°Culet: NoneDepth 61.4%

Caratlytics Score

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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 25
Current: £328 GBP|Low: £111 GBP|High: £1,254 GBP|Avg: £486 GBP|+0.1%
Retailer 1
Retailer 2
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Retailer 4
Retailer 5
Retailer 6
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Retailer 9
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Retailer 11
Retailer 12
Retailer 13
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Retailer 16
October 30, 2026
Retailer 16£146 GBP
Retailer 14£162 GBP
Retailer 15£288 GBP
Retailer 4£300 GBP
Retailer 10£307 GBP
Retailer 1£328 GBP
Retailer 2£352 GBP
Retailer 7£395 GBP
Retailer 11£436 GBP
Retailer 12£440 GBP
Retailer 13£549 GBP
Retailer 3£574 GBP
Retailer 6£703 GBP
Retailer 8£704 GBP
Retailer 9£839 GBP
Retailer 5£1,254 GBP

30 data points across 16 retailers

17 retailers£146 GBP to £1,254 GBP

A
Cheapest Retailer
-
£146 GBP
$196 USD
Final sale: no returns
A
Retailer 2
-
£162 GBP
$217 USD
View
B+
Retailer 3
-
£288 GBP
$386 USD
View
A
Retailer 4
-
£300 GBP
$402 USD
View
A
Retailer 5
-
£307 GBP
ZAR 6,635 ZAR
View
A
Retailer 6
-
£328 GBP
View
A
Retailer 7
-
£352 GBP
$472 USD
View
A
Retailer 8
-
£436 GBP
A$898 AUD
View
A
Retailer 9
-
£440 GBP
$590 USD
View
A
Retailer 10
-
£478 GBP
View
B+
Retailer 11
-
£549 GBP
$736 USD
View
B+
Retailer 12
-
£574 GBP
$769 USD
View
B+
Retailer 13
-
£703 GBP
$942 USD
View
B+
Retailer 14
-
£839 GBP
View
B
Retailer 15
-
£1,254 GBP
$1,680 USD
View
Most Expensive
Allurez
4495351 · Oct 26
£9,999 GBP
$13,398 USD
View
Price under review
15 more retailers have this diamond
Prices start from £146 GBPSave up to £1,108 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
1.40ct Round
£146 GBP