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Oval|Natural|GIA

0.51ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 1242038354

Certificate GIA 1242038354

Diamond specifications and retailer prices

From $515 NZD
$290 USD
As of November 2, 2026
Save $692 NZD (57%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,206 NZD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1242038354. Listed at 2 retailers as of November 1, 2026, with prices from $515 to $1,206, a $692 spread on the same certified stone. 77 Diamonds lists it at $1,206. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1242038354
Dimensions6.48 × 4.42 × 2.75 mm
L/W Ratio1.47
Top View
6.48 mm4.42 mm0.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1242038354
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $1,206 NZD|Low: $468 NZD|High: $1,220 NZD|Avg: $857 NZD|+1.4%
77 Diamonds
Retailer 2
November 1, 2026
Retailer 2$515 NZD
77 Diamonds$1,206 NZD

30 data points across 2 retailers

2 retailers$515 NZD to $1,206 NZD

A
Cheapest Retailer
-
$515 NZD
$290 USD
Final sale: no returns
Most Expensive
B
77 Diamonds
OVCFASFBC5Y7 · Nov 1
$1,206 NZD
£535 GBP
View
1 more retailer has this diamond
Prices start from $515 NZDSave up to $692 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.

A
0.51ct Oval
$515 NZD