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Cushion|Lab Grown|IGI

1.58ct H VS1 Cushion Lab Grown Diamond

EX • H/VS1 • IGI LG665403540

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG665403540

Diamond specifications and retailer prices

From £315 GBP
$422 USD
As of October 30, 2026
Save £1,446 GBP (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,761 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.58ct lab-grown cushion diamond

This 1.58ct lab-grown cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG665403540 or 665403540. Listed at 10 retailers as of October 30, 2026, with prices from £315 to £1,761, a £1,446 spread on the same certified stone. Do Amore Diamonds lists it at £1,761. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.58
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665403540
Dimensions6.82 × 6.67 × 4.41 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.82 mm6.67 mm1.58 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665403540
Side View
Table 62.0%Crown 33.6°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 66.1%

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 30
Current: £1,761 GBP|Low: £315 GBP|High: £1,761 GBP|Avg: £685 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 13£315 GBP
Retailer 2£335 GBP
Retailer 5£358 GBP
Retailer 10£383 GBP
Retailer 11£416 GBP
Retailer 7£431 GBP
Retailer 6£584 GBP
Retailer 9£661 GBP
Retailer 4£696 GBP
Retailer 12£910 GBP
Retailer 3£932 GBP
Retailer 8£1,008 GBP
Do Amore Diamonds£1,761 GBP

24 data points across 13 retailers

10 retailers£315 GBP to £1,761 GBP

A
Cheapest Retailer
-
£315 GBP
$422 USD
A
Retailer 2
-
£335 GBP
View
A
Retailer 3
-
£383 GBP
$513 USD
View
A
Retailer 4
-
£416 GBP
$558 USD
View
A
Retailer 5
-
£431 GBP
ZAR 9,338 ZAR
View
A
Retailer 6
-
£584 GBP
A$1,204 AUD
View
Retailer 7
-
£661 GBP
$885 USD
View
Price last confirmed 11 days ago
B
Retailer 8
-
£932 GBP
$1,249 USD
View
B
Retailer 9
-
£1,008 GBP
View
Most Expensive
B
Do Amore Diamonds
27-B78602B72 · Oct 31
£1,761 GBP
$2,360 USD
View
9 more retailers have this diamond
Prices start from £315 GBPSave up to £1,446 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
1.58ct Cushion
£315 GBP