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Cushion|Natural|GIA

1.00ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 1565717838

Certificate GIA 1565717838

Diamond specifications and retailer prices

From £770 GBP
As of November 6, 2026
Save £1,119 GBP (59%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,888 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded I 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 1565717838. Listed at 8 retailers as of November 4, 2026, with prices from £770 to £1,888, a £1,119 spread on the same certified stone. MOH London lists it at £1,888. 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

1.00
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565717838
Dimensions6.20 × 5.30 × 3.68 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
6.20 mm5.30 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1565717838
Side View
Table 65.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.5%

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: £1,888 GBP|Low: £770 GBP|High: £1,896 GBP|Avg: £1,110 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2£770 GBP
Retailer 5£954 GBP
Retailer 4£964 GBP
Retailer 3£1,016 GBP
Retailer 7£1,041 GBP
Retailer 6£1,134 GBP
MOH London£1,888 GBP

14 data points across 7 retailers

8 retailers£770 GBP to £1,888 GBP

A
Cheapest Retailer
-
£770 GBP
A
Retailer 2
-
£907 GBP
View
B+
Retailer 3
-
£954 GBP
View
Final sale: no returns
A
Retailer 4
-
£964 GBP
View
A
Retailer 5
-
£1,016 GBP
View
A
Retailer 6
-
£1,041 GBP
View
B+
Retailer 7
-
£1,134 GBP
View
Most Expensive
B
MOH London
2253317DC · Nov 4
£1,888 GBP
View
7 more retailers have this diamond
Prices start from £770 GBPSave up to £1,119 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
1.00ct Cushion
£770 GBP