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Cushion|Natural|GIA

3.51ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 2504163221

Certificate GIA 2504163221

Diamond specifications and retailer prices

From £39,517 GBP
As of November 5, 2026
Save £25,530 GBP (39%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £65,047 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.51ct natural cushion diamond

This 3.51ct natural cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2504163221. Listed at 13 retailers as of November 4, 2026, with prices from £39,517 to £65,047, a £25,530 spread on the same certified stone. MOH London lists it at £65,047. 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

3.51
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2504163221
Dimensions9.89 × 7.63 × 5.26 mm
L/W Ratio1.30
Top View
9.89 mm7.63 mm3.51 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2504163221
Side View
Table 71.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 68.9%

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 5
Current: £65,047 GBP|Low: £39,517 GBP|High: £66,007 GBP|Avg: £46,938 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 6£39,517 GBP
Retailer 9£40,110 GBP
Retailer 3£40,909 GBP
Retailer 10£41,945 GBP
Retailer 2£42,127 GBP
Retailer 8£44,318 GBP
Retailer 7£46,874 GBP
Retailer 5£47,727 GBP
Retailer 4£49,448 GBP
MOH London£65,047 GBP

40 data points across 10 retailers

13 retailers£39,517 GBP to £65,047 GBP

B+
Cheapest Retailer
-
£39,517 GBP
B
Retailer 2
-
£40,110 GBP
View
B
Retailer 3
-
£40,909 GBP
View
Retailer 4
-
£41,945 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£42,127 GBP
View
B
Retailer 6
-
£43,721 GBP
View
B
Retailer 7
-
£43,721 GBP
View
B
Retailer 8
-
£44,318 GBP
View
B
Retailer 9
-
£45,178 GBP
View
B
Retailer 10
-
£46,874 GBP
View
B
Retailer 11
-
£47,727 GBP
View
B
Retailer 12
-
£49,448 GBP
View
Most Expensive
B
MOH London
06EF18B28 · Nov 4
£65,047 GBP
View
12 more retailers have this diamond
Prices start from £39,517 GBPSave up to £25,530 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+
3.51ct Cushion
£39,517 GBP