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Oval|Natural|GIA

0.51ct D SI2 Oval Natural Diamond

ID • D/SI2 • GIA 1232839979

Certificate GIA 1232839979

Diamond specifications and retailer prices

From £479 GBP
As of November 6, 2026
Save £1,150 GBP (71%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,629 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1232839979. Listed at 10 retailers as of November 5, 2026, with prices from £479 to £1,629, a £1,150 spread on the same certified stone. NZ Jewellers lists it at £1,629. 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
D
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1232839979
Dimensions6.08 × 4.46 × 2.82 mm
L/W Ratio1.36
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
6.08 mm4.46 mm0.51 ctD / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1232839979
Side View
Table 58.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 63.2%

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: £1,629 GBP|Low: £479 GBP|High: £1,629 GBP|Avg: £741 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 10£479 GBP
Retailer 6£519 GBP
Retailer 8£519 GBP
Retailer 9£539 GBP
Retailer 7£599 GBP
Retailer 2£616 GBP
Retailer 3£631 GBP
Retailer 5£738 GBP
Retailer 4£1,197 GBP
NZ Jewellers£1,629 GBP

35 data points across 10 retailers

10 retailers£479 GBP to £1,629 GBP

A
Cheapest Retailer
-
£479 GBP
Final sale: no returns
Retailer 2
-
£519 GBP
View
Price last confirmed 8 days ago
A
Retailer 3
-
£519 GBP
View
A
Retailer 4
-
£539 GBP
View
B+
Retailer 5
-
£599 GBP
View
B+
Retailer 6
-
£616 GBP
View
B+
Retailer 7
-
£631 GBP
View
B+
Retailer 8
-
£738 GBP
View
B
Retailer 9
-
£1,197 GBP
View
Most Expensive
B
NZ Jewellers
d41d7d21-49b4-4767-8e36-3d4227f7abbf · Nov 5
£1,629 GBP
$2,180 USD
View
9 more retailers have this diamond
Prices start from £479 GBPSave up to £1,150 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 Oval
£479 GBP