CaratHunter
Plans
Cushion|Natural|GIA

1.03ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 2556000386

Certificate GIA 2556000386

Diamond specifications and retailer prices

From £879 GBP
HK$9,200 HKD
As of November 1, 2026
Save £1,084 GBP (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,963 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.03ct natural cushion diamond

This 1.03ct natural cushion sits in the classic one-carat band, graded I 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 2556000386. Listed at 22 retailers as of November 1, 2026, with prices from £879 to £1,963, a £1,084 spread on the same certified stone. MOH London lists it at £1,963. 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

1.03
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556000386
Dimensions6.45 × 5.28 × 3.67 mm
L/W Ratio1.22
Top View
6.45 mm5.28 mm1.03 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556000386
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.6%

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 1
Current: £1,963 GBP|Low: £879 GBP|High: £2,053 GBP|Avg: £1,230 GBP|-4.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 2£879 GBP
Retailer 15£937 GBP
Retailer 5£995 GBP
Retailer 18£996 GBP
Retailer 13£1,044 GBP
Retailer 4£1,045 GBP
Retailer 6£1,051 GBP
Retailer 10£1,075 GBP
Retailer 12£1,093 GBP
Retailer 9£1,123 GBP
Retailer 11£1,173 GBP
Retailer 7£1,200 GBP
Retailer 3£1,248 GBP
Retailer 14£1,250 GBP
Retailer 17£1,390 GBP
Retailer 16£1,556 GBP
Retailer 8£1,826 GBP
MOH London£1,963 GBP

19 data points across 18 retailers

22 retailers£879 GBP to £1,963 GBP

A
Cheapest Retailer
-
£879 GBP
HK$9,200 HKD
A
Retailer 2
-
£937 GBP
$1,255 USD
View
Final sale: no returns
A
Retailer 3
-
£995 GBP
$1,333 USD
View
A
Retailer 4
-
£996 GBP
$1,335 USD
View
A
Retailer 5
-
£1,044 GBP
€1,332 EUR
View
A
Retailer 6
-
£1,045 GBP
$1,400 USD
View
A
Retailer 7
-
£1,051 GBP
$1,409 USD
View
A
Retailer 8
-
£1,075 GBP
$1,440 USD
View
A
Retailer 9
-
£1,093 GBP
View
A
Retailer 10
-
£1,103 GBP
A$2,274 AUD
View
A
Retailer 11
-
£1,123 GBP
$1,505 USD
View
A
Retailer 12
-
£1,123 GBP
$1,505 USD
View
A
Retailer 13
-
£1,173 GBP
$1,571 USD
View
Retailer 14
-
£1,200 GBP
$1,608 USD
View
Price last confirmed 13 days ago
A
Retailer 15
-
£1,248 GBP
$1,672 USD
View
A
Retailer 16
-
£1,250 GBP
View
A
Retailer 17
-
£1,328 GBP
A$2,738 AUD
View
A
Retailer 18
-
£1,390 GBP
ZAR 30,091 ZAR
View
Retailer 19
-
£1,535 GBP
A$3,164 AUD
View
Price last confirmed 27 days ago
B+
Retailer 20
-
£1,556 GBP
€1,985 EUR
View
Retailer 21
-
£1,826 GBP
$2,447 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
4D85DBF5B · Nov 1
£1,963 GBP
View
21 more retailers have this diamond
Prices start from £879 GBPSave up to £1,084 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
1.03ct Cushion
£879 GBP