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Cushion|Natural|GIA

1.30ct G SI1 Cushion Natural Diamond

VG • G/SI1 • GIA 2426499262

Certificate GIA 2426499262

Diamond specifications and retailer prices

From £3,993 GBP
As of November 4, 2026
Save £1,532 GBP (28%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £7,472 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2426499262. Listed at 11 retailers as of November 4, 2026, with a 38% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.30
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2426499262
Dimensions6.71 × 5.85 × 4.01 mm
L/W Ratio1.15
Top View
6.71 mm5.85 mm1.30 ctG / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2426499262
Side View
Table 72.0%CrownGirdle: ThinPavilionCulet: NoneDepth 68.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £7,472 GBP|Low: £3,993 GBP|High: £7,582 GBP|Avg: £5,174 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 4£3,993 GBP
Retailer 7£4,102 GBP
Retailer 6£4,732 GBP
Retailer 3£4,829 GBP
Retailer 5£4,929 GBP
Retailer 2£5,526 GBP
Retailer 8£5,606 GBP
MOH London£7,472 GBP

33 data points across 8 retailers

11 retailers£3,993 GBP to £5,526 GBP

B+
Cheapest Retailer
-
£3,993 GBP
B
Retailer 2
-
£4,102 GBP
View
B
Retailer 3
-
£4,732 GBP
View
B
Retailer 4
-
£4,829 GBP
View
Retailer 5
-
£4,929 GBP
View
Price last confirmed 39 days ago
B
Retailer 6
-
£5,058 GBP
View
B
Retailer 7
-
£5,058 GBP
View
B
Retailer 8
-
£5,230 GBP
View
B
Retailer 9
-
£5,526 GBP
View
Retailer 10
-
£5,606 GBP
View
Price last confirmed 15 days ago
Most Expensive
MOH London
CCA665393 · Nov 4
£7,472 GBP
View
Price under review
10 more retailers have this diamond
Prices start from £3,993 GBPSave up to £1,532 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+
1.30ct Cushion
£3,993 GBP