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Round|Natural|IGI

0.51ct K VS2 Round Natural Diamond

EX • K/VS2 • IGI 529273501

Shape and cutting style on the report: Round brilliant

Certificate IGI 529273501

Diamond specifications and retailer prices

From £156 GBP
As of October 31, 2026
Save £982 GBP (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,138 GBP at Allurez · As of November 5, 2026
View at Allurez

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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 529273501. Listed at 16 retailers as of October 31, 2026, with prices from £156 to £1,138, a £982 spread on the same certified stone. Allurez lists it at £1,138. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
K
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 529273501
Dimensions5.11 × 5.08 × 3.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
5.11 mm5.08 mm0.51 ctK / VS2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 529273501
Side View
Table 55.5%Crown 36.4°Girdle: MediumPavilion 40.5°Culet: NoneDepth 62.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £484 GBP|Low: £156 GBP|High: £983 GBP|Avg: £363 GBP
Retailer 1
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
November 5, 2026
Retailer 8£156 GBP
Retailer 15£217 GBP
Retailer 13£230 GBP
Retailer 5£233 GBP
Retailer 3£242 GBP
Retailer 14£271 GBP
Retailer 11£275 GBP
Retailer 10£285 GBP
Retailer 7£292 GBP
Retailer 4£314 GBP
Retailer 2£334 GBP
Retailer 9£415 GBP
Retailer 1£484 GBP
Retailer 12£504 GBP
Retailer 6£983 GBP

28 data points across 15 retailers

16 retailers£156 GBP to £1,138 GBP

A
Cheapest Retailer
-
£156 GBP
Retailer 2
-
£217 GBP
View
Price last confirmed 9 days ago
Retailer 3
-
£230 GBP
View
Price last confirmed 9 days ago
Retailer 4
-
£233 GBP
View
Price last confirmed 8 days ago
Retailer 5
-
£242 GBP
View
Price last confirmed 9 days ago
Retailer 6
-
£271 GBP
View
Price last confirmed 8 days ago
Retailer 7
-
£275 GBP
View
Price last confirmed 8 days ago
Retailer 8
-
£285 GBP
View
Price last confirmed 8 days ago
Retailer 9
-
£292 GBP
View
Price last confirmed 10 days ago
Retailer 10
-
£314 GBP
View
Price last confirmed 11 days ago
Retailer 11
-
£334 GBP
View
Price last confirmed 12 days ago
Retailer 12
-
£415 GBP
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£484 GBP
View
Retailer 14
-
£504 GBP
View
Price last confirmed 8 days ago
Retailer 15
-
£983 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
Allurez
1199800 · Nov 5
£1,138 GBP
$1,532 USD
View
15 more retailers have this diamond
Prices start from £156 GBPSave up to £982 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 Round
£156 GBP