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Round|Natural|GIA

0.51ct L SI2 Round Natural Diamond

EX • L/SI2 • GIA 2526332350

Certificate GIA 2526332350

Diamond specifications and retailer prices

From £170 GBP
As of November 6, 2026
Save £733 GBP (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £903 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 L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2526332350. Listed at 12 retailers as of November 4, 2026, with prices from £170 to £903, a £733 spread on the same certified stone. NZ Jewellers lists it at £903. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2526332350
Dimensions5.12 × 5.09 × 3.15 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Top View
5.12 mm5.09 mm0.51 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2526332350
Side View
Table 58.0%Crown 34.5°Girdle: Sli. ThickPavilion 41°Culet: NoneDepth 61.9%

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 6
Current: £903 GBP|Low: £170 GBP|High: £933 GBP|Avg: £351 GBP|-3.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2£170 GBP
Retailer 12£199 GBP
Retailer 10£236 GBP
Retailer 3£256 GBP
Retailer 8£262 GBP
Retailer 4£297 GBP
Retailer 5£298 GBP
Retailer 7£317 GBP
Retailer 9£332 GBP
Retailer 11£386 GBP
Retailer 6£439 GBP
NZ Jewellers£903 GBP

30 data points across 12 retailers

12 retailers£170 GBP to £903 GBP

A
Cheapest Retailer
-
£170 GBP
A
Retailer 2
-
£199 GBP
View
A
Retailer 3
-
£236 GBP
View
Retailer 4
-
£256 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£262 GBP
View
Retailer 6
-
£297 GBP
View
Price last confirmed 12 days ago
B+
Retailer 7
-
£298 GBP
View
B+
Retailer 8
-
£317 GBP
View
B+
Retailer 9
-
£332 GBP
View
B+
Retailer 10
-
£386 GBP
View
B+
Retailer 11
-
£439 GBP
View
Most Expensive
B
NZ Jewellers
ca70c7c5-3348-406e-be7e-bd95e2feff8a · Nov 4
£903 GBP
$1,215 USD
View
11 more retailers have this diamond
Prices start from £170 GBPSave up to £733 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
£170 GBP