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Cushion|Natural|GIA

0.51ct K SI2 Cushion Natural Diamond

GD • K/SI2 • GIA 7413636707

Certificate GIA 7413636707

Diamond specifications and retailer prices

From £257 GBP
As of November 6, 2026
Save £308 GBP (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £565 GBP at MOH London · As of November 2, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7413636707. Listed at 11 retailers as of November 2, 2026, with prices from £257 to £565, a £308 spread on the same certified stone. MOH London lists it at £565. 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
K
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7413636707
Dimensions4.43 × 4.31 × 3.18 mm
L/W Ratio1.03
Top View
4.43 mm4.31 mm0.51 ctK / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7413636707
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 73.8%

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: £565 GBP|Low: £261 GBP|High: £572 GBP|Avg: £347 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8£262 GBP
Retailer 7£264 GBP
Retailer 2£291 GBP
Retailer 5£297 GBP
Retailer 6£299 GBP
Retailer 3£312 GBP
Retailer 9£365 GBP
Retailer 4£455 GBP
MOH London£565 GBP

43 data points across 9 retailers

11 retailers£257 GBP to £565 GBP

B+
Cheapest Retailer
-
£257 GBP
Retailer 2
-
£264 GBP
View
Price last confirmed 9 days ago
B+
Retailer 3
-
£291 GBP
View
B+
Retailer 4
-
£297 GBP
View
B+
Retailer 5
-
£299 GBP
View
B+
Retailer 6
-
£312 GBP
View
B+
Retailer 7
-
£342 GBP
View
B+
Retailer 8
-
£365 GBP
View
B+
Retailer 9
-
£386 GBP
View
B
Retailer 10
-
£455 GBP
View
Most Expensive
B
MOH London
80B9D80A7 · Nov 2
£565 GBP
View
10 more retailers have this diamond
Prices start from £257 GBPSave up to £308 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+
0.51ct Cushion
£257 GBP