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Cushion|Lab Grown|GIA

1.50ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • GIA 2426898761

Certificate GIA 2426898761

Diamond specifications and retailer prices

From £866 GBP
As of November 6, 2026
Save £1,092 GBP (56%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,957 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2426898761. Listed at 2 retailers as of November 6, 2026, with prices from £866 to £1,957, a £1,092 spread on the same certified stone. Do Amore Diamonds lists it at £1,957. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2426898761
Dimensions7.86 × 6.15 × 4.24 mm
L/W Ratio1.28
Top View
7.86 mm6.15 mm1.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2426898761
Side View
Table 58.0%CrownGirdle: STK-VTHPavilionCuletDepth 68.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £1,957 GBP|Low: £180 GBP|High: £2,376 GBP|Avg: £1,162 GBP|-17.6%
Do Amore Diamonds
Retailer 2
Retailer 3
September 26, 2026
Retailer 3£371 GBP
Retailer 2£866 GBP
Do Amore Diamonds£1,957 GBP

13 data points across 3 retailers

2 retailers£866 GBP to £1,957 GBP

B
Cheapest Retailer
-
£866 GBP
Most Expensive
C
Do Amore Diamonds
24-2209-037AA · Nov 6
£1,957 GBP
$2,620 USD
View
1 more retailer has this diamond
Prices start from £866 GBPSave up to £1,092 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
1.50ct Cushion
£866 GBP