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Oval|Natural|GIA

0.51ct J SI1 Oval Natural Diamond

VG • J/SI1 • GIA 6532423927

Certificate GIA 6532423927

Diamond specifications and retailer prices

From $1,223 NZD
As of November 6, 2026
Save $1,050 NZD (46%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,273 NZD at MOH London · As of November 4, 2026
View at MOH London

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6532423927. Listed at 5 retailers as of November 4, 2026, with prices from $1,223 to $2,273, a $1,050 spread on the same certified stone. MOH London lists it at $2,273. 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
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6532423927
Dimensions6.58 × 4.39 × 2.67 mm
L/W Ratio1.50
Top View
6.58 mm4.39 mm0.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6532423927
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 60.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,273 NZD|Low: $1,164 NZD|High: $2,289 NZD|Avg: $1,543 NZD|+0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 3$1,223 NZD
Retailer 4$1,236 NZD
Retailer 5$1,398 NZD
Retailer 2$1,458 NZD
MOH London$2,273 NZD

43 data points across 5 retailers

5 retailers$1,223 NZD to $2,273 NZD

B
Cheapest Retailer
-
$1,223 NZD
B
Retailer 2
-
$1,236 NZD
View
Retailer 3
-
$1,398 NZD
View
Price last confirmed 16 days ago
B
Retailer 4
-
$1,458 NZD
View
Most Expensive
B
MOH London
12F393419 · Nov 4
$2,273 NZD
£992 GBP
View
4 more retailers have this diamond
Prices start from $1,223 NZDSave up to $1,050 NZD

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.

B
0.51ct Oval
$1,223 NZD