Oval|Natural|GIA

0.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 2536210465

Certificate GIA 2536210465

Diamond specifications and retailer prices

From £344 GBP
As of November 4, 2026
Save £518 GBP (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,432 GBP at NZ Jewellers · As of September 11, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2536210465. Listed at 14 retailers as of November 2, 2026, with a 150% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2536210465
Dimensions6.54 × 4.33 × 2.72 mm
L/W Ratio1.51
Top View
6.54 mm4.33 mm0.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2536210465
Side View
Table 61.0%CrownGirdle: 0PavilionCulet: NoneDepth 62.8%

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 4
Current: £579 GBP|Low: £248 GBP|High: £873 GBP|Avg: £523 GBP|+2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 4, 2026
Retailer 6£344 GBP
Retailer 8£414 GBP
Retailer 5£426 GBP
Retailer 2£430 GBP
Retailer 3£560 GBP
Retailer 7£562 GBP
Retailer 1£579 GBP
Retailer 4£862 GBP

43 data points across 8 retailers

14 retailers£344 GBP to £862 GBP

A
Cheapest Retailer
-
£344 GBP
Final sale: no returns
Retailer 2
-
£374 GBP
View
Price last confirmed 57 days ago
Retailer 3
-
£374 GBP
View
Price last confirmed 46 days ago
B+
Retailer 4
-
£426 GBP
View
B+
Retailer 5
-
£430 GBP
View
Retailer 6
-
£431 GBP
View
Price last confirmed 62 days ago
Retailer 7
-
£431 GBP
View
Price last confirmed 46 days ago
B
Retailer 8
-
£509 GBP
View
B
Retailer 9
-
£560 GBP
View
Retailer 10
-
£562 GBP
View
Price last confirmed 35 days ago
B
Retailer 11
-
£579 GBP
View
B
Retailer 12
-
£862 GBP
View
Retailer 13
-
£1,432 GBP
View
Price under review
Most Expensive
NZ Jewellers
3e5eef4e-ecca-498c-94a9-788262e8d370 · Sep 11
£1,432 GBP
$1,917 USD
View
Price under review
13 more retailers have this diamond
Prices start from £344 GBPSave up to £518 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
£344 GBP