CaratHunter
Plans
Round|Natural|IGI

0.51ct J VVS1 Round Natural Diamond

EX • J/VVS1 • IGI 840603359

Shape and cutting style on the report: Round brilliant

Certificate IGI 840603359

Diamond specifications and retailer prices

From £266 GBP
$356 USD
As of October 31, 2026
Save £872 GBP (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,137 GBP at NZ Jewellers · As of October 30, 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 J colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI 840603359. Listed at 16 retailers as of October 30, 2026, with prices from £266 to £1,137, a £872 spread on the same certified stone. NZ Jewellers lists it at £1,137. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
J
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle35.3°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 840603359
Dimensions5.10 × 5.15 × 3.12 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
5.10 mm5.15 mm0.51 ctJ / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 840603359
Side View
Table 59.0%Crown 35.3°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 60.8%

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: Oct 31
Current: £1,137 GBP|Low: £266 GBP|High: £1,137 GBP|Avg: £452 GBP|+2.6%
NZ Jewellers
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
October 31, 2026
Retailer 14£266 GBP
Retailer 2£289 GBP
Retailer 3£319 GBP
Retailer 4£319 GBP
Retailer 16£346 GBP
Retailer 9£365 GBP
Retailer 13£388 GBP
Retailer 11£388 GBP
Retailer 5£394 GBP
Retailer 10£400 GBP
Retailer 7£414 GBP
Retailer 8£455 GBP
Retailer 15£458 GBP
Retailer 12£471 GBP
Retailer 6£686 GBP
NZ Jewellers£1,137 GBP

16 data points across 16 retailers

16 retailers£266 GBP to £1,137 GBP

A
Cheapest Retailer
-
£266 GBP
$356 USD
Final sale: no returns
A
Retailer 2
-
£289 GBP
$387 USD
View
A
Retailer 3
-
£319 GBP
$428 USD
View
A
Retailer 4
-
£319 GBP
$428 USD
View
A
Retailer 5
-
£346 GBP
View
A
Retailer 6
-
£365 GBP
View
A
Retailer 7
-
£388 GBP
$520 USD
View
A
Retailer 8
-
£388 GBP
View
A
Retailer 9
-
£394 GBP
$529 USD
View
A
Retailer 10
-
£400 GBP
$536 USD
View
A
Retailer 11
-
£414 GBP
$555 USD
View
B+
Retailer 12
-
£455 GBP
$610 USD
View
B+
Retailer 13
-
£458 GBP
ZAR 9,914 ZAR
View
B+
Retailer 14
-
£471 GBP
€601 EUR
View
B
Retailer 15
-
£686 GBP
View
Most Expensive
B
NZ Jewellers
aad23b36-67f5-4d68-9fb6-aa6030dd6ea6 · Oct 30
£1,137 GBP
$1,524 USD
View
15 more retailers have this diamond
Prices start from £266 GBPSave up to £872 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
£266 GBP