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Cushion|Lab Grown|IGI

1.50ct H VS1 Cushion Lab Grown Diamond

GD • H/VS1 • IGI LG839698501

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

Certificate IGI LG839698501

Diamond specifications and retailer prices

From £314 GBP
As of November 4, 2026
Save £659 GBP (68%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £973 GBP at With Clarity · As of November 3, 2026
View at With Clarity

About this 1.5ct lab-grown cushion diamond

This 1.5ct 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 standard cut grade and certified by IGI LG839698501 or 839698501. Listed at 16 retailers as of November 3, 2026, with prices from £314 to £973, a £659 spread on the same certified stone. With Clarity lists it at £973. 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

1.50
Carat
H
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839698501
Dimensions6.40 × 6.35 × 4.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.40 mm6.35 mm1.50 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839698501
Side View
Table 61.0%Crown 39.3°Girdle: STK-VTKPavilion 35.7°Culet: NoneDepth 68.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £314 GBP|Low: £236 GBP|High: £957 GBP|Avg: £538 GBP|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
With Clarity
November 4, 2026
Retailer 13£236 GBP
Retailer 1£314 GBP
Retailer 12£356 GBP
Retailer 3£373 GBP
Retailer 11£383 GBP
Retailer 2£395 GBP
Retailer 9£407 GBP
Retailer 4£486 GBP
Retailer 7£553 GBP
Retailer 8£606 GBP
Retailer 6£648 GBP
Retailer 5£796 GBP
Retailer 10£946 GBP
With Clarity£953 GBP

34 data points across 14 retailers

16 retailers£314 GBP to £973 GBP

Retailer 1
-
£236 GBP
Price last confirmed 10 days ago
A
Retailer 2
-
£314 GBP
View
B+
Retailer 3
-
£356 GBP
View
B+
Retailer 4
-
£373 GBP
View
B+
Retailer 5
-
£383 GBP
View
B+
Retailer 6
-
£395 GBP
View
B+
Retailer 7
-
£407 GBP
View
B+
Retailer 8
-
£486 GBP
View
B+
Retailer 9
-
£553 GBP
View
B+
Retailer 10
-
£606 GBP
View
B+
Retailer 11
-
£648 GBP
View
Retailer 12
-
£674 GBP
View
Price last confirmed 28 days ago
B
Retailer 13
-
£796 GBP
View
B
Retailer 14
-
£852 GBP
View
B
Retailer 15
-
£946 GBP
View
Most Expensive
B
With Clarity
839698501 · Nov 3
£973 GBP
$1,313 USD
View
15 more retailers have this diamond
Prices start from £314 GBPSave up to £659 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
1.50ct Cushion
£314 GBP