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Cushion|Lab Grown|IGI

1.51ct H VS2 Cushion Lab Grown Diamond

GD • H/VS2 • IGI LG487108020

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG487108020

Diamond specifications and retailer prices

From £315 GBP
As of November 2, 2026
Save £718 GBP (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,033 GBP at MOH London · As of October 26, 2026
View at MOH London

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 VS2 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG487108020 or 487108020. Listed at 10 retailers as of October 26, 2026, with prices from £315 to £1,033, a £718 spread on the same certified stone. MOH London lists it at £1,033. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Colour
VS2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487108020
Dimensions6.42 × 6.35 × 4.67 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Blue As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.42 mm6.35 mm1.51 ctH / VS2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487108020
Side View
Table 60.5%Crown 35.8°Girdle: MED-VTKPavilion 40.4°Culet: NoneDepth 73.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,033 GBP|Low: £258 GBP|High: £1,045 GBP|Avg: £596 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7£258 GBP
Retailer 2£315 GBP
Retailer 10£334 GBP
Retailer 11£347 GBP
Retailer 5£350 GBP
Retailer 6£426 GBP
Retailer 8£452 GBP
Retailer 4£735 GBP
Retailer 3£840 GBP
Retailer 9£931 GBP
Retailer 12£979 GBP
MOH London£1,033 GBP

33 data points across 12 retailers

10 retailers£315 GBP to £1,033 GBP

Retailer 1
-
£258 GBP
$346 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
£315 GBP
View
Retailer 3
-
£334 GBP
HK$3,500 HKD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
£347 GBP
$466 USD
View
B+
Retailer 5
-
£350 GBP
$470 USD
View
B+
Retailer 6
-
£426 GBP
$571 USD
View
B+
Retailer 7
-
£452 GBP
$607 USD
View
Retailer 8
-
£840 GBP
$1,127 USD
View
Price last confirmed 15 days ago
Retailer 9
-
£979 GBP
SGD 1,776 SGD
View
Price last confirmed 26 days ago
Most Expensive
B
MOH London
LG487108020 · Oct 26
£1,033 GBP
View
9 more retailers have this diamond
Prices start from £315 GBPSave up to £718 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.

B+
1.51ct Cushion
£315 GBP