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Cushion|Natural|GIA

1.30ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2566533543

Certificate GIA 2566533543

Diamond specifications and retailer prices

From £1,913 GBP
As of November 6, 2026
Save £2,410 GBP (56%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £4,323 GBP at MOH London · As of November 1, 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 H 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 2566533543. Listed at 9 retailers as of November 1, 2026, with prices from £1,913 to £4,323, a £2,410 spread on the same certified stone. MOH London lists it at £4,323. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566533543
Dimensions7.32 × 5.69 × 3.95 mm
L/W Ratio1.29
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.32 mm5.69 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566533543
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 69.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,323 GBP|Low: £1,913 GBP|High: £4,418 GBP|Avg: £2,694 GBP|-2.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7£1,913 GBP
Retailer 6£2,210 GBP
Retailer 9£2,338 GBP
Retailer 8£2,338 GBP
Retailer 3£2,481 GBP
Retailer 5£2,626 GBP
Retailer 4£2,956 GBP
Retailer 2£3,597 GBP
MOH London£4,323 GBP

18 data points across 9 retailers

9 retailers£1,913 GBP to £4,323 GBP

A
Cheapest Retailer
-
£1,913 GBP
A
Retailer 2
-
£2,210 GBP
View
B+
Retailer 3
-
£2,338 GBP
View
B+
Retailer 4
-
£2,338 GBP
View
B+
Retailer 5
-
£2,481 GBP
View
B+
Retailer 6
-
£2,626 GBP
View
B+
Retailer 7
-
£2,956 GBP
View
B
Retailer 8
-
£3,597 GBP
View
Most Expensive
B
MOH London
82A89C3B9 · Nov 1
£4,323 GBP
View
8 more retailers have this diamond
Prices start from £1,913 GBPSave up to £2,410 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
1.30ct Cushion
£1,913 GBP