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Round|Lab Grown|IGI

1.40ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG596309673

Shape and cutting style on the report: Round brilliant

Certificate IGI LG596309673

Diamond specifications and retailer prices

From £313 GBP
$419 USD
As of October 23, 2026
2 retailers carry this diamond
Most expensive: £460 GBP at Rare Carat · As of August 16, 2026
View at Rare Carat

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 LG596309673 or 596309673. Listed at 2 retailers as of August 16, 2026. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG596309673
Dimensions7.15 × 7.11 × 4.45 mm
L/W Ratio1.01
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
7.15 mm7.11 mm1.40 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG596309673
Side View
Table 57.0%Crown 35.1°Girdle: MediumPavilion 41.1°Culet: NoneDepth 62.5%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 23
Current: £460 GBP|Low: £99 GBP|High: £968 GBP|Avg: £476 GBP|-18.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
September 8, 2026
Retailer 4£263 GBP
Retailer 2£313 GBP
Retailer 3£329 GBP
Retailer 7£362 GBP
Retailer 5£414 GBP
Rare Carat£460 GBP
Retailer 6£747 GBP

34 data points across 7 retailers

2 retailers£313 GBP to £460 GBP

Retailer 1
-
£313 GBP
$419 USD
Price last confirmed 7 days ago
Most Expensive
Rare Carat
FC03101 · Aug 16
£460 GBP
$616 USD
View
Price last confirmed 75 days ago
1 more retailer has this diamond

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.

1.40ct Round
£313 GBP