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Cushion|Natural|GIA

1.03ct F SI1 Cushion Natural Diamond

GD • F/SI1 • GIA 3375937241

Certificate GIA 3375937241

Diamond specifications and retailer prices

From £1,969 GBP
As of November 4, 2026
Save £1,078 GBP (35%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,047 GBP at Washington Diamond · As of November 6, 2026
View at Washington Diamond

About this 1.03ct natural cushion diamond

This 1.03ct natural cushion sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3375937241. Listed at 19 retailers as of November 4, 2026, with prices from £1,969 to £3,047, a £1,078 spread on the same certified stone. Washington Diamond lists it at £3,047. 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
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3375937241
Dimensions5.83 × 5.61 × 3.92 mm
L/W Ratio1.04
Top View
5.83 mm5.61 mm1.03 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3375937241
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.8%

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 4
Current: £2,833 GBP|Low: £1,942 GBP|High: £3,047 GBP|Avg: £2,295 GBP|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Washington Diamond
November 6, 2026
Retailer 4£1,942 GBP
Retailer 8£1,969 GBP
Retailer 5£2,019 GBP
Retailer 3£2,200 GBP
Retailer 7£2,386 GBP
Retailer 6£2,456 GBP
Retailer 2£2,492 GBP
Retailer 1£2,833 GBP
Washington Diamond£3,047 GBP

43 data points across 9 retailers

19 retailers£1,969 GBP to £3,047 GBP

Retailer 1
-
£1,942 GBP
Price last confirmed 19 days ago
B+
Retailer 2
-
£1,969 GBP
View
B+
Retailer 3
-
£2,019 GBP
View
B
Retailer 4
-
£2,056 GBP
View
B
Retailer 5
-
£2,105 GBP
View
B
Retailer 6
-
£2,144 GBP
View
B
Retailer 7
-
£2,200 GBP
View
B
Retailer 8
-
£2,220 GBP
View
B
Retailer 9
-
£2,225 GBP
View
B
Retailer 10
-
£2,386 GBP
View
B
Retailer 11
-
£2,389 GBP
View
B
Retailer 12
-
£2,456 GBP
View
B
Retailer 13
-
£2,492 GBP
View
B
Retailer 14
-
£2,518 GBP
View
B
Retailer 15
-
£2,518 GBP
View
B
Retailer 16
-
£2,539 GBP
View
B
Retailer 17
-
£2,600 GBP
View
B
Retailer 18
-
£2,833 GBP
View
Most Expensive
B
Washington Diamond
1917992367 · Nov 6
£3,047 GBP
$4,079 USD
View
18 more retailers have this diamond
Prices start from £1,969 GBPSave up to £1,078 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
£1,969 GBP