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Cushion|Lab Grown|IGI

1.50ct H VS1 Cushion Lab Grown Diamond

VG • H/VS1 • IGI LG594312985

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG594312985

Diamond specifications and retailer prices

From £279 GBP
As of November 3, 2026
Save £533 GBP (66%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £812 GBP at MOH London · As of November 2, 2026
View at MOH London

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 very-good cut grade and certified by IGI LG594312985 or 594312985. Listed at 7 retailers as of November 2, 2026, with prices from £279 to £812, a £533 spread on the same certified stone. MOH London lists it at £812. 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
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594312985
Dimensions7.14 × 6.05 × 4.15 mm
L/W Ratio1.18
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.
Top View
7.14 mm6.05 mm1.50 ctH / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG594312985
Side View
Table 61.0%Crown 34°Girdle: STK-THKPavilion 36.4°Culet: NoneDepth 68.6%

Caratlytics Score

How it works →
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 3
Current: £812 GBP|Low: £279 GBP|High: £821 GBP|Avg: £527 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6£279 GBP
Retailer 4£319 GBP
Retailer 2£350 GBP
Retailer 5£373 GBP
Retailer 3£652 GBP
Retailer 8£659 GBP
Retailer 7£778 GBP
MOH London£812 GBP

16 data points across 8 retailers

7 retailers£279 GBP to £812 GBP

A
Cheapest Retailer
-
£279 GBP
B+
Retailer 2
-
£319 GBP
View
A
Retailer 3
-
£350 GBP
View
B+
Retailer 4
-
£373 GBP
View
Retailer 5
-
£652 GBP
View
Price last confirmed 31 days ago
B
Retailer 6
-
£778 GBP
View
Most Expensive
B
MOH London
LG594312985 · Nov 2
£812 GBP
View
6 more retailers have this diamond
Prices start from £279 GBPSave up to £533 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
£279 GBP