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Oval|Natural|GIA

0.51ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 2566335237

Certificate GIA 2566335237

Diamond specifications and retailer prices

From $830 NZD
As of November 6, 2026
Save $2,866 NZD (78%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,696 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 2566335237. Listed at 9 retailers as of November 5, 2026, with prices from $830 to $3,696, a $2,866 spread on the same certified stone. NZ Jewellers lists it at $3,696. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566335237
Dimensions6.22 × 4.42 × 2.83 mm
L/W Ratio1.41
Girdle conditionThick
Top View
6.22 mm4.42 mm0.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566335237
Side View
Table 60.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,696 NZD|Low: $875 NZD|High: $3,696 NZD|Avg: $1,866 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$875 NZD
Retailer 3$1,400 NZD
Retailer 7$1,416 NZD
Retailer 5$1,429 NZD
Retailer 4$1,721 NZD
Retailer 6$2,718 NZD
NZ Jewellers$3,696 NZD

29 data points across 7 retailers

9 retailers$830 NZD to $3,696 NZD

A
Cheapest Retailer
-
$830 NZD
Final sale: no returns
A
Retailer 2
-
$875 NZD
View
A
Retailer 3
-
$1,400 NZD
View
A
Retailer 4
-
$1,400 NZD
View
A
Retailer 5
-
$1,416 NZD
View
B+
Retailer 6
-
$1,429 NZD
View
B+
Retailer 7
-
$1,721 NZD
View
B
Retailer 8
-
$2,718 NZD
View
Most Expensive
B
NZ Jewellers
e0395f84-63db-435b-8d2c-f4265a83fb46 · Nov 5
$3,696 NZD
$2,049 USD
View
8 more retailers have this diamond
Prices start from $830 NZDSave up to $2,866 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
$830 NZD