Cushion|Lab Grown|IGI

51.24ct G VS1 Cushion Lab Grown Diamond

VG • G/VS1 • IGI LG782651260

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

Certificate IGI LG782651260

Diamond specifications and retailer prices

From £71,762 GBP
$96,300 USD
As of November 2, 2026
Save £1,081 GBP (1%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £104,096 GBP at Loose Grown Diamond · As of October 26, 2026
View at Loose Grown Diamond

About this 51.24ct lab-grown cushion diamond

This 51.24ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG782651260 or 782651260. Listed at 5 retailers as of October 28, 2026, with a relatively tight 2% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

51.24
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.6°
Pavilion angle31.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782651260
Dimensions21.59 × 20.91 × 12.43 mm
L/W Ratio1.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
21.59 mm20.91 mm51.24 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG782651260
Side View
Table 66.0%Crown 34.6°Girdle: STK-VTKPavilion 31.4°Culet: NoneDepth 59.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: £104,096 GBP|Low: £56,008 GBP|High: £125,003 GBP|Avg: £89,782 GBP|-0.9%
Loose Grown Diamond
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 4£56,008 GBP
Retailer 2£71,762 GBP
Loose Grown Diamond£104,096 GBP
Retailer 3£124,594 GBP

13 data points across 4 retailers

5 retailers£71,762 GBP to £72,842 GBP

Retailer 1
-
£56,008 GBP
$75,160 USD
Price last confirmed 7 days ago
B
Retailer 2
-
£71,762 GBP
$96,300 USD
View
B
Retailer 3
-
£72,842 GBP
$97,750 USD
View
Most Expensive
Loose Grown Diamond
782651260 · Oct 26
£104,096 GBP
$139,691 USD
View
Price under review
3 more retailers have this diamond
Prices start from £71,762 GBPSave up to £1,081 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
51.24ct Cushion
£71,762 GBP