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Cushion|Natural|GIA

1.03ct H SI1 Cushion Natural Diamond

GD • H/SI1 • GIA 6315031832

Shape and cutting style on the report: Cushion modified brilliant

Certificate GIA 6315031832

Diamond specifications and retailer prices

From £1,348 GBP
As of November 6, 2026
Save £1,624 GBP (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,972 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 H 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 6315031832. Listed at 13 retailers as of November 1, 2026, with prices from £1,348 to £2,972, a £1,624 spread on the same certified stone. MOH London lists it at £2,972. 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6315031832
Dimensions5.66 × 5.27 × 3.83 mm
L/W Ratio1.07
Top View
5.66 mm5.27 mm1.03 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 6315031832
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 72.8%

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 6
Current: £2,972 GBP|Low: £401 GBP|High: £3,004 GBP|Avg: £1,750 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
Retailer 14
Retailer 15
November 6, 2026
Retailer 6£401 GBP
Retailer 11£1,348 GBP
Retailer 14£1,532 GBP
Retailer 13£1,565 GBP
Retailer 2£1,645 GBP
Retailer 12£1,697 GBP
Retailer 15£1,700 GBP
Retailer 7£1,800 GBP
Retailer 9£1,843 GBP
Retailer 4£1,892 GBP
Retailer 5£1,905 GBP
Retailer 10£2,070 GBP
Retailer 3£2,086 GBP
Retailer 8£2,107 GBP
MOH London£2,972 GBP

31 data points across 15 retailers

13 retailers£1,348 GBP to £2,972 GBP

B+
Cheapest Retailer
-
£1,348 GBP
B+
Retailer 2
-
£1,532 GBP
View
B+
Retailer 3
-
£1,565 GBP
View
Final sale: no returns
B+
Retailer 4
-
£1,645 GBP
View
Retailer 5
-
£1,697 GBP
View
Price last confirmed 9 days ago
B
Retailer 6
-
£1,700 GBP
View
B
Retailer 7
-
£1,800 GBP
View
B
Retailer 8
-
£1,843 GBP
View
B
Retailer 9
-
£1,905 GBP
View
B
Retailer 10
-
£2,070 GBP
View
Retailer 11
-
£2,086 GBP
View
Price last confirmed 32 days ago
B
Retailer 12
-
£2,107 GBP
View
Most Expensive
B
MOH London
CBADD379A · Nov 1
£2,972 GBP
View
12 more retailers have this diamond
Prices start from £1,348 GBPSave up to £1,624 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
£1,348 GBP