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Round|Natural|GIA

0.51ct G IF Round Natural Diamond

EX • G/IF • GIA 1539312159

Certificate GIA 1539312159

Diamond specifications and retailer prices

From £476 GBP
As of November 4, 2026
Save £1,513 GBP (76%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,989 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 G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 1539312159. Listed at 21 retailers as of November 4, 2026, with prices from £476 to £1,989, a £1,513 spread on the same certified stone. NZ Jewellers lists it at £1,989. 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
G
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1539312159
Dimensions5.13 × 5.10 × 3.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Minor Details of Polish
Top View
5.13 mm5.10 mm0.51 ctG / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1539312159
Side View
Table 57.0%Crown 35°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A+
Exceptional
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 4
Current: £759 GBP|Low: £476 GBP|High: £1,173 GBP|Avg: £681 GBP|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4£476 GBP
Retailer 5£566 GBP
Retailer 9£585 GBP
Retailer 7£595 GBP
Retailer 3£638 GBP
Retailer 2£736 GBP
Retailer 1£759 GBP
Retailer 8£828 GBP
Retailer 6£1,161 GBP

31 data points across 9 retailers

21 retailers£476 GBP to £1,989 GBP

A
Cheapest Retailer
-
£476 GBP
A+
Retailer 2
-
£476 GBP
View
A
Retailer 3
-
£566 GBP
View
A
Retailer 4
-
£585 GBP
View
Final sale: no returns
A
Retailer 5
-
£589 GBP
View
Retailer 6
-
£590 GBP
View
Price last confirmed 8 days ago
Retailer 7
-
£595 GBP
View
Price last confirmed 11 days ago
A
Retailer 8
-
£635 GBP
View
A
Retailer 9
-
£638 GBP
View
A
Retailer 10
-
£658 GBP
View
Retailer 11
-
£663 GBP
View
Price last confirmed 10 days ago
A
Retailer 12
-
£732 GBP
View
A
Retailer 13
-
£736 GBP
View
A
Retailer 14
-
£759 GBP
View
A
Retailer 15
-
£825 GBP
View
A
Retailer 16
-
£842 GBP
View
A
Retailer 17
-
£851 GBP
View
A
Retailer 18
-
£900 GBP
View
B+
Retailer 19
-
£1,031 GBP
View
B+
Retailer 20
-
£1,161 GBP
View
Most Expensive
B
NZ Jewellers
2845cd66-197e-4007-8645-2c2d595d4dea · Nov 4
£1,989 GBP
$2,677 USD
View
20 more retailers have this diamond
Prices start from £476 GBPSave up to £1,513 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
£476 GBP