CaratHunter
Plans
Round|Natural|IGI

0.51ct J IF Round Natural Diamond

EX • J/IF • IGI 840602052

Shape and cutting style on the report: Round brilliant

Certificate IGI 840602052

Diamond specifications and retailer prices

From £311 GBP
As of November 3, 2026
Save £979 GBP (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,289 GBP at NZ Jewellers · As of November 2, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 840602052. Listed at 16 retailers as of November 2, 2026, with prices from £311 to £1,289, a £979 spread on the same certified stone. NZ Jewellers lists it at £1,289. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.7°
OriginNatural
Grading LabIGI
CertificateIGI 840602052
Dimensions5.04 × 5.07 × 3.21 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.04 mm5.07 mm0.51 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 840602052
Side View
Table 60.0%Crown 35.9°Girdle: Slightly ThickPavilion 41.7°Culet: NoneDepth 63.5%

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 3
Current: £1,289 GBP|Low: £311 GBP|High: £1,327 GBP|Avg: £496 GBP|-1.9%
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
November 4, 2026
Retailer 7£311 GBP
Retailer 4£337 GBP
Retailer 14£363 GBP
Retailer 8£373 GBP
Retailer 6£388 GBP
Retailer 13£389 GBP
Retailer 2£410 GBP
Retailer 12£428 GBP
Retailer 16£433 GBP
Retailer 3£450 GBP
Retailer 5£471 GBP
Retailer 10£490 GBP
Retailer 9£522 GBP
Retailer 15£539 GBP
Retailer 11£775 GBP
NZ Jewellers£1,289 GBP

25 data points across 16 retailers

16 retailers£311 GBP to £1,289 GBP

A
Cheapest Retailer
-
£311 GBP
Final sale: no returns
A
Retailer 2
-
£337 GBP
View
A
Retailer 3
-
£363 GBP
View
Retailer 4
-
£373 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£388 GBP
View
A
Retailer 6
-
£389 GBP
View
A
Retailer 7
-
£410 GBP
View
A
Retailer 8
-
£428 GBP
View
A
Retailer 9
-
£433 GBP
View
A
Retailer 10
-
£450 GBP
View
A
Retailer 11
-
£471 GBP
View
B+
Retailer 12
-
£490 GBP
View
B+
Retailer 13
-
£522 GBP
View
B+
Retailer 14
-
£539 GBP
View
B
Retailer 15
-
£775 GBP
View
Most Expensive
B
NZ Jewellers
8d2a270c-33c8-4536-9090-64b747e437c4 · Nov 2
£1,289 GBP
$1,735 USD
View
15 more retailers have this diamond
Prices start from £311 GBPSave up to £979 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
£311 GBP