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Cushion|Natural|GIA

1.30ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 6552251784

Certificate GIA 6552251784

Diamond specifications and retailer prices

From £1,767 GBP
As of November 6, 2026
Save £1,580 GBP (47%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,347 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552251784. Listed at 7 retailers as of November 4, 2026, with prices from £1,767 to £3,347, a £1,580 spread on the same certified stone. MOH London lists it at £3,347. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceVery Strong
OriginNatural
Grading LabGIA
CertificateGIA 6552251784
Dimensions6.85 × 5.49 × 3.85 mm
L/W Ratio1.25
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Natural
Top View
6.85 mm5.49 mm1.30 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceVery Strong
CertificateGIA 6552251784
Side View
Table 59.0%CrownGirdlePavilionCulet: NoneDepth 70.2%

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: £3,347 GBP|Low: £1,620 GBP|High: £3,396 GBP|Avg: £2,214 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6£1,767 GBP
Retailer 4£1,842 GBP
Retailer 5£1,915 GBP
Retailer 3£2,026 GBP
Retailer 7£2,146 GBP
Retailer 2£2,377 GBP
MOH London£3,347 GBP

46 data points across 7 retailers

7 retailers£1,767 GBP to £3,347 GBP

A
Cheapest Retailer
-
£1,767 GBP
Final sale: no returns
A
Retailer 2
-
£1,842 GBP
View
Retailer 3
-
£1,915 GBP
View
Price last confirmed 8 days ago
A
Retailer 4
-
£2,026 GBP
View
Retailer 5
-
£2,146 GBP
View
Price last confirmed 30 days ago
A
Retailer 6
-
£2,377 GBP
View
Most Expensive
B+
MOH London
9E10553AD · Nov 4
£3,347 GBP
View
6 more retailers have this diamond
Prices start from £1,767 GBPSave up to £1,580 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
£1,767 GBP