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Round|Natural|GIA

0.51ct K I1 Round Natural Diamond

VG • K/I1 • GIA 2228751593

Certificate GIA 2228751593

Diamond specifications and retailer prices

From £351 GBP
As of November 5, 2026
Save £866 GBP (71%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,217 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and I1 clarity (included), with a very-good cut grade and certified by GIA 2228751593. Listed at 6 retailers as of November 4, 2026, with prices from £351 to £1,217, a £866 spread on the same certified stone. NZ Jewellers lists it at £1,217. 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
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2228751593
Dimensions5.01 × 5.05 × 3.22 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.01 mm5.05 mm0.51 ctK / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2228751593
Side View
Table 58.0%Crown 37°Girdle: STK-THKPavilion 41°Culet: NoneDepth 64.0%

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: £1,217 GBP|Low: £351 GBP|High: £1,217 GBP|Avg: £538 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5£351 GBP
Retailer 3£379 GBP
Retailer 7£379 GBP
Retailer 6£406 GBP
Retailer 4£432 GBP
Retailer 8£479 GBP
Retailer 2£575 GBP
Retailer 9£583 GBP
NZ Jewellers£1,217 GBP

19 data points across 9 retailers

6 retailers£351 GBP to £1,217 GBP

B+
Cheapest Retailer
-
£351 GBP
Retailer 2
-
£379 GBP
View
Price last confirmed 8 days ago
B
Retailer 3
-
£379 GBP
View
B
Retailer 4
-
£406 GBP
View
B
Retailer 5
-
£575 GBP
View
Most Expensive
C
NZ Jewellers
0190e13d-0735-4f47-85d2-c1bd336b2d44 · Nov 4
£1,217 GBP
$1,638 USD
View
5 more retailers have this diamond
Prices start from £351 GBPSave up to £866 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 Round
£351 GBP