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Cushion|Lab Grown|IGI

1.51ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG532242998

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG532242998

Diamond specifications and retailer prices

From £219 GBP
HK$2,300 HKD
As of November 1, 2026
Save £578 GBP (72%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £797 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown cushion diamond

This 1.51ct 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 LG532242998 or 532242998. Listed at 10 retailers as of October 31, 2026, with prices from £219 to £797, a £578 spread on the same certified stone. Brilliant Earth lists it at £797. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG532242998
Dimensions7.76 × 6.11 × 4.08 mm
L/W Ratio1.27
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
7.76 mm6.11 mm1.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG532242998
Side View
Table 62.5%Crown 34.7°Girdle: STK-THKPavilion 37.1°Culet: NoneDepth 66.8%

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: Nov 1
Current: £797 GBP|Low: £126 GBP|High: £924 GBP|Avg: £479 GBP|-12.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 6£198 GBP
Retailer 3£219 GBP
Retailer 12£219 GBP
Retailer 9£339 GBP
Retailer 2£342 GBP
Retailer 5£351 GBP
Retailer 10£368 GBP
Retailer 8£387 GBP
Retailer 7£444 GBP
Retailer 4£510 GBP
Retailer 14£641 GBP
Retailer 11£675 GBP
Retailer 13£797 GBP
Brilliant Earth£797 GBP

13 data points across 14 retailers

10 retailers£219 GBP to £797 GBP

A
Cheapest Retailer
-
£219 GBP
HK$2,300 HKD
A
Retailer 2
-
£339 GBP
$455 USD
View
A
Retailer 3
-
£342 GBP
ZAR 7,405 ZAR
View
A
Retailer 4
-
£368 GBP
$494 USD
View
A
Retailer 5
-
£387 GBP
$520 USD
View
A
Retailer 6
-
£444 GBP
$596 USD
View
B+
Retailer 7
-
£641 GBP
SGD 1,163 SGD
View
B+
Retailer 8
-
£675 GBP
$906 USD
View
B
Retailer 9
-
£797 GBP
View
Most Expensive
B
Brilliant Earth
17656489A · Oct 31
£797 GBP
$1,070 USD
View
9 more retailers have this diamond
Prices start from £219 GBPSave up to £578 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
1.51ct Cushion
£219 GBP