CaratHunter
Plans
Cushion|Natural|GIA

1.03ct I SI1 Cushion Natural Diamond

FR • I/SI1 • GIA 5336608403

Certificate GIA 5336608403

Diamond specifications and retailer prices

From £1,318 GBP
HK$13,800 HKD
As of November 1, 2026
Save £1,390 GBP (51%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,708 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 5336608403. Listed at 12 retailers as of November 1, 2026, with prices from £1,318 to £2,708, a £1,390 spread on the same certified stone. MOH London lists it at £2,708. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

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

Specifications

Cut (retailer stated)Fair
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5336608403
Dimensions5.85 × 5.28 × 3.92 mm
L/W Ratio1.11
Top View
5.85 mm5.28 mm1.03 ctI / SI1
OriginNatural
CutFair
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 5336608403
Side View
Table 55.0%CrownGirdle: VTK-EXTPavilionCulet: NoneDepth 74.3%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £2,708 GBP|Low: £1,299 GBP|High: £2,737 GBP|Avg: £1,667 GBP|-1.1%
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
November 1, 2026
Retailer 7£1,318 GBP
Retailer 3£1,396 GBP
Retailer 12£1,396 GBP
Retailer 11£1,427 GBP
Retailer 2£1,508 GBP
Retailer 10£1,546 GBP
Retailer 13£1,567 GBP
Retailer 5£1,649 GBP
Retailer 6£1,696 GBP
Retailer 4£1,746 GBP
Retailer 9£1,900 GBP
Retailer 8£2,111 GBP
MOH London£2,708 GBP

28 data points across 13 retailers

12 retailers£1,318 GBP to £2,708 GBP

B+
Cheapest Retailer
-
£1,318 GBP
HK$13,800 HKD
B+
Retailer 2
-
£1,396 GBP
$1,871 USD
View
B+
Retailer 3
-
£1,427 GBP
$1,912 USD
View
Final sale: no returns
B+
Retailer 4
-
£1,508 GBP
View
B
Retailer 5
-
£1,546 GBP
$2,071 USD
View
B
Retailer 6
-
£1,567 GBP
$2,100 USD
View
B
Retailer 7
-
£1,649 GBP
$2,210 USD
View
B
Retailer 8
-
£1,696 GBP
View
B
Retailer 9
-
£1,746 GBP
$2,340 USD
View
B
Retailer 10
-
£1,900 GBP
ZAR 41,131 ZAR
View
B
Retailer 11
-
£2,111 GBP
€2,694 EUR
View
Most Expensive
C
MOH London
4C0695EE0 · Nov 1
£2,708 GBP
View
11 more retailers have this diamond
Prices start from £1,318 GBPSave up to £1,390 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+
1.03ct Cushion
£1,318 GBP