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Oval|Natural|GIA

0.51ct H SI1 Oval Natural Diamond

GD • H/SI1 • GIA 2556444651

Certificate GIA 2556444651

Diamond specifications and retailer prices

From $805 NZD
As of November 6, 2026
Save $2,430 NZD (75%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,234 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556444651. Listed at 21 retailers as of November 5, 2026, with prices from $805 to $3,234, a $2,430 spread on the same certified stone. NZ Jewellers lists it at $3,234. 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556444651
Dimensions6.35 × 4.50 × 2.87 mm
L/W Ratio1.41
Girdle conditionFaceted
Key to symbols
Feather, Twinning Wisp, Crystal, Cloud
Top View
6.35 mm4.50 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2556444651
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.7%

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: $3,234 NZD|Low: $805 NZD|High: $3,234 NZD|Avg: $1,404 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 2$805 NZD
Retailer 8$951 NZD
Retailer 3$1,032 NZD
Retailer 13$1,072 NZD
Retailer 5$1,111 NZD
Retailer 11$1,111 NZD
Retailer 18$1,191 NZD
Retailer 19$1,196 NZD
Retailer 10$1,203 NZD
Retailer 15$1,252 NZD
Retailer 12$1,259 NZD
Retailer 6$1,268 NZD
Retailer 7$1,297 NZD
Retailer 4$1,380 NZD
Retailer 9$1,467 NZD
Retailer 14$1,521 NZD
Retailer 16$1,591 NZD
Retailer 17$2,381 NZD
NZ Jewellers$3,234 NZD

23 data points across 19 retailers

21 retailers$805 NZD to $3,234 NZD

A
Cheapest Retailer
-
$805 NZD
B+
Retailer 2
-
$877 NZD
View
B+
Retailer 3
-
$951 NZD
View
Final sale: no returns
B+
Retailer 4
-
$1,032 NZD
View
B+
Retailer 5
-
$1,072 NZD
View
B+
Retailer 6
-
$1,111 NZD
View
Retailer 7
-
$1,111 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,191 NZD
View
B+
Retailer 9
-
$1,196 NZD
View
B+
Retailer 10
-
$1,203 NZD
View
B
Retailer 11
-
$1,252 NZD
View
B+
Retailer 12
-
$1,259 NZD
View
B
Retailer 13
-
$1,268 NZD
View
B
Retailer 14
-
$1,297 NZD
View
B
Retailer 15
-
$1,380 NZD
View
B
Retailer 16
-
$1,467 NZD
View
B
Retailer 17
-
$1,521 NZD
View
Retailer 18
-
$1,566 NZD
View
Price last confirmed 33 days ago
B
Retailer 19
-
$1,591 NZD
View
C
Retailer 20
-
$2,381 NZD
View
Most Expensive
C
NZ Jewellers
dd1940f1-609e-45b9-ade2-9c6db32196c8 · Nov 5
$3,234 NZD
$1,793 USD
View
20 more retailers have this diamond
Prices start from $805 NZDSave up to $2,430 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
$805 NZD