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Oval|Natural|GIA

0.51ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 6515880819

Certificate GIA 6515880819

Diamond specifications and retailer prices

From $1,001 NZD
As of November 6, 2026
Save $3,261 NZD (77%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,263 NZD 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 6515880819. Listed at 22 retailers as of November 5, 2026, with prices from $1,001 to $4,263, a $3,261 spread on the same certified stone. NZ Jewellers lists it at $4,263. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6515880819
Dimensions6.06 × 4.38 × 2.83 mm
L/W Ratio1.38
Top View
6.06 mm4.38 mm0.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6515880819
Side View
Table 56.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 64.8%

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 6
Current: $1,001 NZD|Low: $866 NZD|High: $3,987 NZD|Avg: $1,600 NZD|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$1,001 NZD
Retailer 8$1,254 NZD
Retailer 7$1,353 NZD
Retailer 5$1,360 NZD
Retailer 6$1,380 NZD
Retailer 3$1,616 NZD
Retailer 2$1,916 NZD
Retailer 4$2,489 NZD

41 data points across 8 retailers

22 retailers$1,001 NZD to $4,263 NZD

A
Cheapest Retailer
-
$1,001 NZD
Retailer 2
-
$1,039 NZD
View
Price last confirmed 63 days ago
A
Retailer 3
-
$1,254 NZD
View
Final sale: no returns
Retailer 4
-
$1,353 NZD
View
Price last confirmed 19 days ago
Retailer 5
-
$1,360 NZD
View
Price last confirmed 21 days ago
Retailer 6
-
$1,360 NZD
View
Price last confirmed 45 days ago
Retailer 7
-
$1,360 NZD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
$1,360 NZD
View
A
Retailer 9
-
$1,380 NZD
View
Retailer 10
-
$1,569 NZD
View
Price last confirmed 67 days ago
B+
Retailer 11
-
$1,569 NZD
View
B+
Retailer 12
-
$1,569 NZD
View
Retailer 13
-
$1,569 NZD
View
Price last confirmed 45 days ago
B+
Retailer 14
-
$1,569 NZD
View
B+
Retailer 15
-
$1,598 NZD
View
B+
Retailer 16
-
$1,616 NZD
View
B+
Retailer 17
-
$1,916 NZD
View
B
Retailer 18
-
$2,489 NZD
View
Retailer 19
-
$4,263 NZD
View
Price last confirmed 68 days ago
B
Retailer 20
-
$4,263 NZD
View
Retailer 21
-
$4,263 NZD
View
Price last confirmed 48 days ago
Most Expensive
B
NZ Jewellers
ac2051ab-ac8c-4390-b85d-b8a5644c3624 · Nov 5
$4,263 NZD
$2,363 USD
View
21 more retailers have this diamond
Prices start from $1,001 NZDSave up to $3,261 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
$1,001 NZD