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Cushion|Natural|GIA

3.50ct H SI1 Cushion Natural Diamond

VG • H/SI1 • GIA 6565459121

Certificate GIA 6565459121

Diamond specifications and retailer prices

From £23,783 GBP
As of November 6, 2026
Save £19,476 GBP (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £43,259 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.5ct natural cushion diamond

This 3.5ct natural cushion sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6565459121. Listed at 14 retailers as of November 4, 2026, with prices from £23,783 to £43,259, a £19,476 spread on the same certified stone. MOH London lists it at £43,259. 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

3.50
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6565459121
Dimensions10.15 × 7.88 × 5.40 mm
L/W Ratio1.29
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
10.15 mm7.88 mm3.50 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6565459121
Side View
Table 70.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.6%

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 6
Current: £43,259 GBP|Low: £23,783 GBP|High: £43,607 GBP|Avg: £31,266 GBP|-0.8%
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 6, 2026
Retailer 4£23,783 GBP
Retailer 2£24,736 GBP
Retailer 3£26,313 GBP
Retailer 5£27,432 GBP
Retailer 9£27,710 GBP
Retailer 13£28,100 GBP
Retailer 11£29,728 GBP
Retailer 6£31,781 GBP
Retailer 7£33,507 GBP
Retailer 12£34,136 GBP
Retailer 8£35,754 GBP
Retailer 10£40,277 GBP
MOH London£43,259 GBP

22 data points across 13 retailers

14 retailers£23,783 GBP to £43,259 GBP

B+
Cheapest Retailer
-
£23,783 GBP
A
Retailer 2
-
£24,736 GBP
View
B+
Retailer 3
-
£26,313 GBP
View
B+
Retailer 4
-
£26,561 GBP
View
B+
Retailer 5
-
£27,432 GBP
View
B+
Retailer 6
-
£27,710 GBP
View
B+
Retailer 7
-
£28,100 GBP
View
Final sale: no returns
B
Retailer 8
-
£29,728 GBP
View
B
Retailer 9
-
£31,781 GBP
View
B
Retailer 10
-
£33,507 GBP
View
B
Retailer 11
-
£34,136 GBP
View
B
Retailer 12
-
£35,754 GBP
View
Retailer 13
-
£40,277 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
8341DAD65 · Nov 4
£43,259 GBP
View
13 more retailers have this diamond
Prices start from £23,783 GBPSave up to £19,476 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
3.50ct Cushion
£23,783 GBP