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Cushion|Natural|GIA

3.51ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 6485456365

Certificate GIA 6485456365

Diamond specifications and retailer prices

From £40,021 GBP
As of November 7, 2026
Save £8,206 GBP (17%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £48,227 GBP at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 3.51ct natural cushion diamond

This 3.51ct natural cushion sits in the three to five carat band, graded E 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 6485456365. Listed at 3 retailers as of November 7, 2026, with prices from £40,021 to £48,227, a £8,206 spread on the same certified stone. 77 Diamonds lists it at £48,227. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceMedium
Crown angle42.13°
Pavilion angle35.42°
OriginNatural
Grading LabGIA
CertificateGIA 6485456365
Dimensions9.88 × 7.85 × 5.48 mm
L/W Ratio1.26
Top View
9.88 mm7.85 mm3.51 ctE / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6485456365
Side View
Table 64.0%Crown 42.13°Girdle: STK-ETKPavilion 35.42°Culet: NoneDepth 69.8%

Caratlytics Score

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

Price History

Last verified: Nov 7
Current: £48,227 GBP|Low: £40,021 GBP|High: £49,202 GBP|Avg: £44,696 GBP|-0.8%
77 Diamonds
Retailer 2
November 7, 2026
Retailer 2£40,021 GBP
77 Diamonds£48,227 GBP

46 data points across 2 retailers

3 retailers£40,021 GBP to £48,227 GBP

B+
Cheapest Retailer
-
£40,021 GBP
B
Retailer 2
-
£41,828 GBP
View
Most Expensive
B
77 Diamonds
CUSMBUPC28BNB · Nov 7
£48,227 GBP
View
2 more retailers have this diamond
Prices start from £40,021 GBPSave up to £8,206 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
£40,021 GBP