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Cushion|Natural|GIA

1.30ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 2364264078

Certificate GIA 2364264078

Diamond specifications and retailer prices

From £2,625 GBP
As of November 6, 2026
Save £959 GBP (27%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,583 GBP at Washington Diamond · As of November 6, 2026
View at Washington Diamond

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 H 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 2364264078. Listed at 10 retailers as of November 6, 2026, with prices from £2,625 to £3,583, a £959 spread on the same certified stone. Washington Diamond lists it at £3,583. 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

1.30
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2364264078
Dimensions6.45 × 5.98 × 3.98 mm
L/W Ratio1.08
Top View
6.45 mm5.98 mm1.30 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2364264078
Side View
Table 60.0%CrownGirdle: THN-ETKPavilionCulet: NoneDepth 66.6%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £3,409 GBP|Low: £2,463 GBP|High: £3,583 GBP|Avg: £2,920 GBP|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Washington Diamond
November 6, 2026
Retailer 5£2,463 GBP
Retailer 3£2,739 GBP
Retailer 6£2,739 GBP
Retailer 4£3,058 GBP
Retailer 2£3,068 GBP
Retailer 1£3,409 GBP
Washington Diamond£3,583 GBP

43 data points across 7 retailers

10 retailers£2,625 GBP to £3,583 GBP

B+
Cheapest Retailer
-
£2,625 GBP
B+
Retailer 2
-
£2,739 GBP
View
B+
Retailer 3
-
£2,739 GBP
View
B+
Retailer 4
-
£2,761 GBP
View
B+
Retailer 5
-
£2,832 GBP
View
B+
Retailer 6
-
£3,058 GBP
View
B+
Retailer 7
-
£3,068 GBP
View
B
Retailer 8
-
£3,162 GBP
View
B
Retailer 9
-
£3,409 GBP
View
Most Expensive
B
Washington Diamond
1917992204 · Nov 6
£3,583 GBP
$4,796 USD
View
9 more retailers have this diamond
Prices start from £2,625 GBPSave up to £959 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
£2,625 GBP