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Oval|Natural|GIA

0.51ct H SI1 Oval Natural Diamond

VG • H/SI1 • GIA 6562588822

Certificate GIA 6562588822

Diamond specifications and retailer prices

From £315 GBP
As of November 6, 2026
Save £1,097 GBP (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,412 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6562588822. Listed at 12 retailers as of November 5, 2026, with prices from £315 to £1,412, a £1,097 spread on the same certified stone. NZ Jewellers lists it at £1,412. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6562588822
Dimensions6.53 × 4.33 × 2.74 mm
L/W Ratio1.51
Girdle conditionThick
Top View
6.53 mm4.33 mm0.51 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6562588822
Side View
Table 59.0%CrownGirdle: Slightly 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: £1,412 GBP|Low: £315 GBP|High: £1,412 GBP|Avg: £633 GBP
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 4£315 GBP
Retailer 2£333 GBP
Retailer 11£411 GBP
Retailer 10£512 GBP
Retailer 3£546 GBP
Retailer 7£548 GBP
Retailer 12£548 GBP
Retailer 5£549 GBP
Retailer 6£662 GBP
Retailer 9£695 GBP
Retailer 8£1,038 GBP
NZ Jewellers£1,412 GBP

22 data points across 12 retailers

12 retailers£315 GBP to £1,412 GBP

A
Cheapest Retailer
-
£315 GBP
Final sale: no returns
A
Retailer 2
-
£333 GBP
View
A
Retailer 3
-
£411 GBP
View
B+
Retailer 4
-
£512 GBP
View
B+
Retailer 5
-
£546 GBP
View
B+
Retailer 6
-
£548 GBP
View
B+
Retailer 7
-
£548 GBP
View
B+
Retailer 8
-
£549 GBP
View
B
Retailer 9
-
£662 GBP
View
B
Retailer 10
-
£695 GBP
View
B
Retailer 11
-
£1,038 GBP
View
Most Expensive
C
NZ Jewellers
a87bb9f3-7f95-4794-b072-119b40468992 · Nov 5
£1,412 GBP
$1,890 USD
View
11 more retailers have this diamond
Prices start from £315 GBPSave up to £1,097 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
£315 GBP