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Round|Natural|GIA

0.51ct J IF Round Natural Diamond

EX • J/IF • GIA 2507958335

Certificate GIA 2507958335

Diamond specifications and retailer prices

From £442 GBP
As of November 4, 2026
Save £1,061 GBP (71%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,503 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 J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2507958335. Listed at 16 retailers as of November 4, 2026, with prices from £442 to £1,503, a £1,061 spread on the same certified stone. NZ Jewellers lists it at £1,503. 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 angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2507958335
Dimensions5.12 × 5.14 × 3.16 mm
L/W Ratio1.00
Star length55%
Lower girdle80%
Top View
5.12 mm5.14 mm0.51 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2507958335
Side View
Table 59.0%Crown 35.5°Girdle: STK-MEDPavilion 41°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
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: Nov 4
Current: £1,503 GBP|Low: £442 GBP|High: £1,503 GBP|Avg: £768 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9£442 GBP
Retailer 8£490 GBP
Retailer 2£553 GBP
Retailer 5£582 GBP
Retailer 3£623 GBP
Retailer 4£699 GBP
Retailer 10£720 GBP
Retailer 6£739 GBP
Retailer 7£1,105 GBP
NZ Jewellers£1,503 GBP

35 data points across 10 retailers

16 retailers£442 GBP to £1,503 GBP

A
Cheapest Retailer
-
£442 GBP
Final sale: no returns
A
Retailer 2
-
£479 GBP
View
A
Retailer 3
-
£490 GBP
View
B+
Retailer 4
-
£516 GBP
View
B+
Retailer 5
-
£553 GBP
View
B+
Retailer 6
-
£553 GBP
View
B+
Retailer 7
-
£577 GBP
View
B+
Retailer 8
-
£582 GBP
View
B+
Retailer 9
-
£623 GBP
View
B+
Retailer 10
-
£699 GBP
View
Retailer 11
-
£720 GBP
View
Price last confirmed 33 days ago
B+
Retailer 12
-
£739 GBP
View
B
Retailer 13
-
£770 GBP
View
B
Retailer 14
-
£1,030 GBP
View
B
Retailer 15
-
£1,105 GBP
View
Most Expensive
B
NZ Jewellers
ad7db504-d534-422c-a298-15362469aa0b · Nov 4
£1,503 GBP
$2,023 USD
View
15 more retailers have this diamond
Prices start from £442 GBPSave up to £1,061 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
£442 GBP