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Cushion|Natural|GIA

1.51ct G SI2 Cushion Natural Diamond

EX • G/SI2 • GIA 3425774327

Certificate GIA 3425774327

Diamond specifications and retailer prices

From £2,957 GBP
As of November 6, 2026
Save £2,992 GBP (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £5,949 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3425774327. Listed at 11 retailers as of November 4, 2026, with prices from £2,957 to £5,949, a £2,992 spread on the same certified stone. MOH London lists it at £5,949. 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

1.51
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3425774327
Dimensions6.66 × 6.08 × 4.34 mm
L/W Ratio1.10
Top View
6.66 mm6.08 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3425774327
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 71.4%

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 6
Current: £5,949 GBP|Low: £2,957 GBP|High: £7,720 GBP|Avg: £4,154 GBP|-22.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10£2,957 GBP
Retailer 9£2,959 GBP
Retailer 8£2,982 GBP
Retailer 5£3,022 GBP
Retailer 7£3,216 GBP
Retailer 6£3,393 GBP
Retailer 4£3,688 GBP
Retailer 3£4,135 GBP
Retailer 2£4,214 GBP
Retailer 11£5,420 GBP
MOH London£5,949 GBP

43 data points across 11 retailers

11 retailers£2,957 GBP to £5,949 GBP

A
Cheapest Retailer
-
£2,957 GBP
A
Retailer 2
-
£2,959 GBP
View
A
Retailer 3
-
£2,982 GBP
View
Final sale: no returns
Retailer 4
-
£3,022 GBP
View
Price last confirmed 10 days ago
A
Retailer 5
-
£3,216 GBP
View
Retailer 6
-
£3,393 GBP
View
Price last confirmed 9 days ago
A
Retailer 7
-
£3,688 GBP
View
Retailer 8
-
£4,135 GBP
View
Price last confirmed 15 days ago
B+
Retailer 9
-
£4,214 GBP
View
B
Retailer 10
-
£5,420 GBP
View
Most Expensive
B+
MOH London
7ECC25CC5 · Nov 4
£5,949 GBP
View
10 more retailers have this diamond
Prices start from £2,957 GBPSave up to £2,992 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
1.51ct Cushion
£2,957 GBP