CaratHunter
Plans
Cushion|Natural|GIA

0.51ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 5523919294

Certificate GIA 5523919294

Diamond specifications and retailer prices

From £282 GBP
As of November 6, 2026
Save £563 GBP (67%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £845 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter 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 5523919294. Listed at 21 retailers as of November 4, 2026, with prices from £282 to £845, a £563 spread on the same certified stone. MOH London lists it at £845. 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

0.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.3°
Pavilion angle34°
OriginNatural
Grading LabGIA
CertificateGIA 5523919294
Dimensions4.65 × 4.34 × 2.97 mm
L/W Ratio1.07
Top View
4.65 mm4.34 mm0.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5523919294
Side View
Table 60.0%Crown 35.3°Girdle: MED-VTKPavilion 34°Culet: NoneDepth 68.4%

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: £845 GBP|Low: £282 GBP|High: £897 GBP|Avg: £453 GBP|-5.7%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 10£282 GBP
Retailer 5£306 GBP
Retailer 11£329 GBP
Retailer 15£329 GBP
Retailer 7£344 GBP
Retailer 9£383 GBP
Retailer 4£402 GBP
Retailer 8£411 GBP
Retailer 16£411 GBP
Retailer 6£413 GBP
Retailer 17£426 GBP
Retailer 2£447 GBP
Retailer 13£453 GBP
Retailer 18£459 GBP
Retailer 19£463 GBP
Retailer 3£489 GBP
Retailer 12£495 GBP
Retailer 14£568 GBP
MOH London£845 GBP

28 data points across 19 retailers

21 retailers£282 GBP to £845 GBP

A
Cheapest Retailer
-
£282 GBP
A
Retailer 2
-
£306 GBP
View
Final sale: no returns
Retailer 3
-
£329 GBP
View
Price last confirmed 16 days ago
A
Retailer 4
-
£329 GBP
View
A
Retailer 5
-
£344 GBP
View
Retailer 6
-
£374 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£383 GBP
View
A
Retailer 8
-
£402 GBP
View
A
Retailer 9
-
£411 GBP
View
A
Retailer 10
-
£411 GBP
View
A
Retailer 11
-
£413 GBP
View
A
Retailer 12
-
£426 GBP
View
A
Retailer 13
-
£447 GBP
View
B+
Retailer 14
-
£453 GBP
View
B+
Retailer 15
-
£459 GBP
View
B+
Retailer 16
-
£463 GBP
View
B+
Retailer 17
-
£489 GBP
View
B+
Retailer 18
-
£495 GBP
View
B+
Retailer 19
-
£568 GBP
View
Retailer 20
-
£577 GBP
View
Price last confirmed 34 days ago
Most Expensive
B
MOH London
CCAFD69D2 · Nov 4
£845 GBP
View
20 more retailers have this diamond
Prices start from £282 GBPSave up to £563 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
0.51ct Cushion
£282 GBP